Merge branch 'master' into updates-post-birthday

.gitignore

@@ -27,6 +27,4 @@
 /archive/2018/
 /archive/2019/
 /archive/2020/
-alt.prog
 mkentry
-prog

1984/Makefile

@@ -50,7 +50,7 @@
 # tool locations
 ################
 #
-SHELL= /bin/bash
+SHELL= bash
 MAKE= make
 
 

1984/README.md

@@ -1,10 +1,18 @@
 In 1984, the first contest was held.  The name of the contest was simply
 ``Obfuscated C Code Contest''.
 
+
+Look at the README.md file for the given winner for information
+on how to compile the winner and how to run the winning program.
+Look at the winning source and try to figure how it does what it does!
+You may then wish to look at the Author's comments for even more details.
+
 Restrictions against machine dependent code were not in the rules in 1984.
 The source file size restriction was only 512 bytes.  Rules and results
 were posted to net.lang.c and net.unix-wizards.
 
+=-=
+
 Copyright (c) 1984, Landon Curt Noll.
 All Rights Reserved.  Permission for personal, educational or non-profit use is
 granted provided this this copyright and notice are included in its entirety

1984/anonymous/.gitignore

@@ -0,0 +1 @@
+anonymous

1984/anonymous/Makefile

@@ -327,30 +327,26 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
-#
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
-CWARN= -Wall -Wextra ${CSILENCE}
-#CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
-
-# Silence warnings that ${CWARN} would normally complain about
+# Common C compiler warnings to silence
 #
+#CSILENCE=
 CSILENCE= -Wno-error -Wno-implicit-function-declaration -Wno-implicit-int \
 	-Wno-return-type -Wno-string-plus-int -Wno-unsequenced
-#CSILENCE= -Wno-implicit-int
 
-# compiler standard
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
+CWARN= -Wall -Wextra ${CSILENCE}
+#CWARN= -Wall -Wextra -pedantic ${CSILENCE}
+
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -362,12 +358,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -376,7 +372,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -389,7 +385,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -400,20 +396,32 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-poison-system-directories -Wno-shadow -Wno-missing-prototypes \
+	-Wno-strict-prototypes -Wno-missing-variable-declarations -Wno-pedantic
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################

1984/decot/.gitignore

@@ -0,0 +1 @@
+decot

1984/decot/Makefile

@@ -327,31 +327,27 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
-#
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
-CWARN= -Wall -Wextra ${CSILENCE}
-#CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
-
-# Silence warnings that ${CWARN} would normally complain about
+# Common C compiler warnings to silence
 #
+#CSILENCE=
 CSILENCE= -Wno-array-bounds -Wno-error -Wno-implicit-function-declaration \
 	-Wno-keyword-macro -Wno-main-return-type -Wno-missing-field-initializers \
 	-Wno-unused-value -Wno-unused-variable
-#CSILENCE= -Wno-implicit-int
 
-# compiler standard
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
+CWARN= -Wall -Wextra ${CSILENCE}
+#CWARN= -Wall -Wextra -pedantic ${CSILENCE}
+
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
-CSTD= -std=gnu89
+CSTD= -std=gnu90
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -363,12 +359,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
 #CDEFINE= -DIOCCC=26
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -377,7 +373,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -390,7 +386,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -401,20 +397,32 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-comma -Wno-format-nonliteral -Wno-missing-variable-declarations \
+	-Wno-pedantic -Wno-poison-system-directories -Wno-strict-prototypes
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################
@@ -444,7 +452,7 @@ all: ${DATA} ${TARGET}
 	supernova deep_magic magic charon pluto
 
 ${PROG}: ${PROG}.c
-	@echo "NOTE: This entry uses non-standard args to main() that do not work with modern compilers."
+	@echo "NOTE: This entry may not compile when using modern compilers."
 	${CC} ${CFLAGS} $< -o $@ ${LIBS}
 
 # alternative executable

1984/decot/README.md

@@ -6,7 +6,7 @@ Dave Decot
 
         make all
 
-NOTE: This entry uses non-standard args to main() that do not work with modern compilers.
+NOTE: This entry may not compile when using modern compilers.
 
 ## Judges' comments:
 

1984/laman/.gitignore

@@ -0,0 +1 @@
+laman

1984/laman/Makefile

@@ -327,29 +327,25 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
+# Common C compiler warnings to silence
 #
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
+#CSILENCE=
+CSILENCE= -Wno-error -Wno-implicit-function-declaration -Wno-implicit-int
+
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
 CWARN= -Wall -Wextra ${CSILENCE}
 #CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
 
-# Silence warnings that ${CWARN} would normally complain about
-#
-CSILENCE= -Wno-error -Wno-implicit-function-declaration -Wno-implicit-int
-#CSILENCE= -Wno-implicit-int
-
-# compiler standard
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
-CSTD= -std=gnu11
+CSTD= -std=c11
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -361,12 +357,12 @@ CSTD= -std=gnu11
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -375,7 +371,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -388,7 +384,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -399,20 +395,32 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-comma -Wno-missing-variable-declarations -Wno-pedantic \
+	-Wno-poison-system-directories
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################

1984/mullender/.gitignore

@@ -0,0 +1 @@
+mullender

1984/mullender/Makefile

@@ -327,29 +327,25 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
-#
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
-#CWARN= -Wall -Wextra ${CSILENCE}
-CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
-
-# Silence warnings that ${CWARN} would normally complain about
+# Common C compiler warnings to silence
 #
+#CSILENCE=
 CSILENCE= -Wno-main
-#CSILENCE= -Wno-implicit-int
 
-# compiler standard
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
+CWARN= -Wall -Wextra ${CSILENCE}
+#CWARN= -Wall -Wextra -pedantic ${CSILENCE}
+
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -361,12 +357,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -375,7 +371,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -388,7 +384,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -399,20 +395,31 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-missing-variable-declarations -Wno-poison-system-directories
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################

1985/Makefile

@@ -50,7 +50,7 @@
 # tool locations
 ################
 #
-SHELL= /bin/bash
+SHELL= bash
 MAKE= make
 
 

1985/README.md

@@ -1,4 +1,10 @@
-185 marked the second year of the Obfuscated C Code Contest.
+1985 marked the second year of the Obfuscated C Code Contest.
+
+
+Look at the README.md file for the given winner for information
+on how to compile the winner and how to run the winning program.
+Look at the winning source and try to figure how it does what it does!
+You may then wish to look at the Author's comments for even more details.
 
 Hints against machine dependent code were added to the rules to avoid
 another 1984 style winner.  Rules and results were posted to net.lang.c
@@ -6,6 +12,8 @@ and net.unix-wizards.  Larry Bassel was invited to help in the
 judging.  Awards were given to 5 classes of programs since we were
 unable to select only the best 4.
 
+=-=
+
 Copyright (c) 1985, Landon Curt Noll & Larry Bassel.
 All Rights Reserved.  Permission for personal, educational or non-profit use is
 granted provided this this copyright and notice are included in its entirety

1985/applin/.gitignore

@@ -0,0 +1 @@
+applin

1985/applin/Makefile

@@ -327,29 +327,25 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
+# Common C compiler warnings to silence
 #
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
+#CSILENCE=
+CSILENCE= -Wno-error -Wno-implicit-function-declaration -Wno-logical-op-parentheses
+
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
 CWARN= -Wall -Wextra ${CSILENCE}
 #CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
 
-# Silence warnings that ${CWARN} would normally complain about
-#
-CSILENCE= -Wno-error -Wno-implicit-function-declaration -Wno-logical-op-parentheses
-#CSILENCE= -Wno-implicit-int
-
-# compiler standard
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -361,12 +357,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -375,7 +371,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -388,7 +384,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -399,20 +395,31 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-pedantic -Wno-poison-system-directories
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################

1985/august/.gitignore

@@ -0,0 +1 @@
+august

1985/august/Makefile

@@ -327,30 +327,26 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
-#
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
-CWARN= -Wall -Wextra ${CSILENCE}
-#CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
-
-# Silence warnings that ${CWARN} would normally complain about
+# Common C compiler warnings to silence
 #
+#CSILENCE=
 CSILENCE= -Wno-error -Wno-implicit-function-declaration -Wno-main \
 	-Wno-unused-parameter -Wno-unused-variable
-#CSILENCE= -Wno-implicit-int
 
-# compiler standard
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
+CWARN= -Wall -Wextra ${CSILENCE}
+#CWARN= -Wall -Wextra -pedantic ${CSILENCE}
+
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -362,12 +358,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -376,7 +372,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -389,7 +385,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -400,20 +396,32 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-comma -Wno-missing-prototypes -Wno-padded -Wno-pedantic \
+	-Wno-poison-system-directories -Wno-strict-prototypes
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################

1985/lycklama/Makefile

@@ -327,29 +327,26 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
+# Common C compiler warnings to silence
 #
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
-#CWARN= -Wall -Wextra ${CSILENCE}
-CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
+#CSILENCE=
+CSILENCE= -Wno-implicit-int -Wno-unused-value -Wno-parentheses -Wno-error \
+	-Wno-implicit-function-declaration
 
-# Silence warnings that ${CWARN} would normally complain about
+# Common C compiler warning flags
 #
-CSILENCE= -Wno-implicit-int -Wno-unused-value -Wno-parentheses
-#CSILENCE= -Wno-implicit-int
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
+CWARN= -Wall -Wextra ${CSILENCE}
+#CWARN= -Wall -Wextra -pedantic ${CSILENCE}
 
-# compiler standard
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -361,21 +358,21 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
-CINCLUDE=-include unistd.h
+CINCLUDE=
 #CINCLUDE= -include stdlib.h
 #CINCLUDE= -include stdio.h
 #CINCLUDE= -include stdlib.h -include stdio.h
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -388,7 +385,7 @@ CINCLUDE=-include unistd.h
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -399,20 +396,32 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-implicit-int-conversion -Wno-poison-system-directories \
+	-Wno-unused-macros
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################

1985/shapiro/.gitignore

@@ -0,0 +1 @@
+shapiro

1985/shapiro/Makefile

@@ -327,30 +327,26 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
-#
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
-#CWARN= -Wall -Wextra ${CSILENCE}
-CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
-
-# Silence warnings that ${CWARN} would normally complain about
+# Common C compiler warnings to silence
 #
+#CSILENCE=
 CSILENCE= -Wno-error -Wno-implicit-function-declaration -Wno-implicit-int \
 	-Wno-parentheses -Wno-string-plus-int
-#CSILENCE= -Wno-implicit-int
 
-# compiler standard
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
+#CWARN= -Wall -Wextra ${CSILENCE}
+CWARN= -Wall -Wextra -pedantic ${CSILENCE}
+
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -362,12 +358,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -376,7 +372,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -389,7 +385,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -400,20 +396,31 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-comma -Wno-missing-variable-declarations -Wno-poison-system-directories
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################

1985/sicherman/.gitignore

@@ -0,0 +1 @@
+sicherman

1985/sicherman/Makefile

@@ -327,29 +327,25 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
+# Common C compiler warnings to silence
 #
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
+#CSILENCE=
+CSILENCE= -Wno-comment
+
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
 #CWARN= -Wall -Wextra ${CSILENCE}
 CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
 
-# Silence warnings that ${CWARN} would normally complain about
-#
-CSILENCE= -Wno-comment
-#CSILENCE= -Wno-implicit-int
-
-# compiler standard
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -361,12 +357,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -375,7 +371,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -388,7 +384,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -399,20 +395,31 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-poison-system-directories
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################

1986/Makefile

@@ -50,7 +50,7 @@
 # tool locations
 ################
 #
-SHELL= /bin/bash
+SHELL= bash
 MAKE= make
 
 

1986/README.md

@@ -1,20 +1,28 @@
 The 1986 contest was named: "The Third International Obfuscated C Code Contest"
 
-Copyright (c) 1986, Landon Curt Noll & Larry Bassel.
-All Rights Reserved.  Permission for personal, educational or non-profit use is
-granted provided this this copyright and notice are included in its entirety
-and remains unaltered.  All other uses must receive prior permission in writing
-from both Landon Curt Noll and Larry Bassel.
+
+Look at the README.md file for the given winner for information
+on how to compile the winner and how to run the winning program.
+Look at the winning source and try to figure how it does what it does!
+You may then wish to look at the Author's comments for even more details.
 
 The rules for 1986 suggested categories due to the success of the 1985
 judging method.  The maximum size was increased from 512 to 1024 bytes.
 Larry Bassel joined as the second official judge.
 
 A poll was taken for the worst code for BSD and System V program.
-The Bourne Shell (/bin/sh) won for both systems.  The BSD finger 
+The Bourne Shell (/bin/sh) won for both systems.  The BSD finger
 program took third place.
 
 Rules and results were posted to net.lang.c and net.unix-wizards.
 Micro/Systems Journal published started regular publishing of the winners.
 The practice of making first announcement of the winners at the Summer
 Usenix BOF started this year.  A notice was posted to net.announce.
+
+=-=
+
+Copyright (c) 1986, Landon Curt Noll & Larry Bassel.
+All Rights Reserved.  Permission for personal, educational or non-profit use is
+granted provided this this copyright and notice are included in its entirety
+and remains unaltered.  All other uses must receive prior permission in writing
+from both Landon Curt Noll and Larry Bassel.

1986/applin/.gitignore

@@ -0,0 +1 @@
+applin

1986/applin/Makefile

@@ -327,29 +327,26 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
+# Common C compiler warnings to silence
 #
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
+#CSILENCE=
+CSILENCE= -Wno-error -Wno-implicit-function-declaration -Wno-error \
+	-Wno-implicit-function-declaration -Wno-implicit-int
+
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
 #CWARN= -Wall -Wextra ${CSILENCE}
 CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
 
-# Silence warnings that ${CWARN} would normally complain about
-#
-CSILENCE= -Wno-error -Wno-implicit-function-declaration
-#CSILENCE= -Wno-implicit-int
-
-# compiler standard
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -361,12 +358,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -375,7 +372,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -388,7 +385,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -399,20 +396,32 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-poison-system-directories -Wno-unknown-warning-option \
+	-Wno-missing-variable-declarations
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################

1986/august/.gitignore

@@ -0,0 +1 @@
+august

1986/august/Makefile

@@ -327,29 +327,25 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
+# Common C compiler warnings to silence
 #
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
+#CSILENCE=
+CSILENCE= -Wno-error -Wno-implicit-function-declaration -Wno-implicit-int -Wno-return-type
+
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
 #CWARN= -Wall -Wextra ${CSILENCE}
 CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
 
-# Silence warnings that ${CWARN} would normally complain about
-#
-CSILENCE= -Wno-error -Wno-implicit-function-declaration -Wno-implicit-int -Wno-return-type
-#CSILENCE= -Wno-implicit-int
-
-# compiler standard
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -361,12 +357,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -375,7 +371,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -388,7 +384,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -399,20 +395,33 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-cast-align -Wno-comma -Wno-missing-prototypes \
+	-Wno-missing-variable-declarations -Wno-padded \
+	-Wno-poison-system-directories -Wno-sign-conversion -Wno-strict-prototypes
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################

1986/bright/Makefile

@@ -327,31 +327,27 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
-#
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
-CWARN= -Wall -Wextra ${CSILENCE}
-#CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
-
-# Silence warnings that ${CWARN} would normally complain about
+# Common C compiler warnings to silence
 #
+#CSILENCE=
 CSILENCE= -Wno-error -Wno-implicit-function-declaration -Wno-format-security \
 	-Wno-implicit-int -Wno-unknown-escape-sequence -Wno-unused-value \
 	-Wno-sign-compare
-#CSILENCE= -Wno-implicit-int
 
-# compiler standard
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
+CWARN= -Wall -Wextra ${CSILENCE}
+#CWARN= -Wall -Wextra -pedantic ${CSILENCE}
+
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -363,12 +359,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -377,7 +373,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -390,7 +386,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -401,20 +397,34 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-comma -Wno-format-nonliteral -Wno-missing-prototypes \
+	-Wno-missing-variable-declarations -Wno-pedantic \
+	-Wno-poison-system-directories -Wno-shorten-64-to-32 -Wno-sign-conversion \
+	-Wno-strict-prototypes -Wno-unreachable-code-return
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################

1986/hague/.gitignore

@@ -0,0 +1 @@
+hague

1986/hague/Makefile

@@ -344,13 +344,13 @@ CSILENCE= -Wno-error -Wno-implicit-function-declaration -Wno-implicit-int \
 	-Wno-incompatible-library-redeclaration -Wno-return-type
 #CSILENCE= -Wno-implicit-int
 
-# compiler standard
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -362,12 +362,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
 #CDEFINE= -DIOCCC=26
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -376,7 +376,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -415,6 +415,114 @@ CC= cc
 #CC=clang
 MAY_NEED_GCC= gcc
 
+# Set X11_LIBDIR to the directory where the X11 library resides
+#
+#X11_LIBDIR= /usr/X11R6/lib
+#X11_LIBDIR= /usr/X11/lib
+X11_LIBDIR= /opt/X11/lib
+
+# Set X11_INCLUDEDIR to the directory where the X11 include files reside
+#
+#X11_INCDIR= /usr/X11R6/include
+#X11_INCDIR= /usr/X11/include
+X11_INCDIR= /opt/X11/include
+
+# Common C compiler warnings to silence
+#
+#CSILENCE=
+CSILENCE= -Wno-error -Wno-implicit-function-declaration -Wno-implicit-int \
+	-Wno-incompatible-library-redeclaration -Wno-return-type
+
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
+CWARN= -Wall -Wextra ${CSILENCE}
+#CWARN= -Wall -Wextra -pedantic ${CSILENCE}
+
+# Compiler standard
+#
+#CSTD=
+#CSTD= -ansi
+CSTD= -std=gnu89
+
+# Compiler bit architecture
+#
+# Some entries require 32-bitness:
+# ARCH= -m32
+#
+# Some entries require 64-bitness:
+# ARCH= -m64
+#
+# By default we assume nothing:
+#
+ARCH=
+
+# Defines that are needed to compile
+#
+CDEFINE=
+#CDEFINE= -DIOCCC
+
+# Include files that are needed to compile
+#
+CINCLUDE=
+#CINCLUDE= -include stdlib.h
+#CINCLUDE= -include stdio.h
+#CINCLUDE= -include stdlib.h -include stdio.h
+#CINCLUDE= -I ${X11_INCDIR}
+#CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
+
+# Optimization
+#
+# Most compiles will safely use -O2.  Some can use only -O1 or -O.
+# A few compilers have broken optimizers or this entry make break
+# under those buggy optimizers and thus you may not want anything.
+# Reasonable compilers will allow for -O3.
+#
+#OPT=
+#OPT= -O
+#OPT= -O1
+#OPT= -O2
+OPT= -O3
+
+# Default flags for ANSI C compilation
+#
+CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
+
+# Libraries needed to build
+#
+LIBS=
+#LIBS= -lm
+#LIBS= -L ${X11_LIBDIR} -lX11
+#LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
+
+# C compiler to use
+#
+CC= cc
+#CC=clang
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-comma -Wno-missing-prototypes -Wno-missing-variable-declarations \
+	-Wno-pedantic -Wno-poison-system-directories -Wno-strict-prototypes
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
+
 
 ##############################
 # Special flags for this entry

1986/holloway/.gitignore

@@ -0,0 +1 @@
+holloway

1986/holloway/Makefile

@@ -327,30 +327,26 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
-#
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
-CWARN= -Wall -Wextra ${CSILENCE}
-#CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
-
-# Silence warnings that ${CWARN} would normally complain about
+# Common C compiler warnings to silence
 #
+#CSILENCE=
 CSILENCE= -Wno-format-security -Wno-implicit-int -Wno-int-to-pointer-cast \
 	-Wno-pointer-to-int-cast
-#CSILENCE= -Wno-implicit-int
 
-# compiler standard
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
+CWARN= -Wall -Wextra ${CSILENCE}
+#CWARN= -Wall -Wextra -pedantic ${CSILENCE}
+
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -362,12 +358,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -376,7 +372,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -389,7 +385,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -400,20 +396,32 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-missing-variable-declarations -Wno-pedantic \
+	-Wno-poison-system-directories -Wno-shadow
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################

1986/marshall/.gitignore

@@ -0,0 +1 @@
+marshall

1986/marshall/Makefile

@@ -327,31 +327,27 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
-#
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
-#CWARN= -Wall -Wextra ${CSILENCE}
-CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
-
-# Silence warnings that ${CWARN} would normally complain about
+# Common C compiler warnings to silence
 #
+#CSILENCE=
 CSILENCE= -Wno-error -Wno-implicit-function-declaration -Wno-implicit-int \
 	-Wno-int-conversion -Wno-parentheses -Wno-shift-negative-value \
 	-Wno-string-compare -Wno-unsequenced -Wno-unused-value
-#CSILENCE= -Wno-implicit-int
 
-# compiler standard
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
+#CWARN= -Wall -Wextra ${CSILENCE}
+CWARN= -Wall -Wextra -pedantic ${CSILENCE}
+
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -363,12 +359,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -377,7 +373,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -390,7 +386,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -401,20 +397,32 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-missing-prototypes -Wno-missing-variable-declarations \
+	-Wno-poison-system-directories -Wno-strict-prototypes
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################

1986/pawka/Makefile

@@ -327,29 +327,25 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
+# Common C compiler warnings to silence
 #
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
+#CSILENCE=
+CSILENCE= -Wno-non-literal-null-conversion -Wno-unused-value
+
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
 #CWARN= -Wall -Wextra ${CSILENCE}
 CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
 
-# Silence warnings that ${CWARN} would normally complain about
-#
-CSILENCE= -Wno-non-literal-null-conversion -Wno-unused-value
-#CSILENCE= -Wno-implicit-int
-
-# compiler standard
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -361,12 +357,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -375,7 +371,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -388,7 +384,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -399,20 +395,31 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-missing-variable-declarations -Wno-poison-system-directories
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################

1986/stein/.gitignore

@@ -0,0 +1,2 @@
+a.out
+stein

1986/stein/Makefile

@@ -327,29 +327,25 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
+# Common C compiler warnings to silence
 #
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
+#CSILENCE=
+CSILENCE= -Wno-error -Wno-implicit-function-declaration -Wno-implicit-int -Wno-int-conversion
+
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
 CWARN= -Wall -Wextra ${CSILENCE}
 #CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
 
-# Silence warnings that ${CWARN} would normally complain about
-#
-CSILENCE= -Wno-error -Wno-implicit-function-declaration -Wno-implicit-int -Wno-int-conversion
-#CSILENCE= -Wno-implicit-int
-
-# compiler standard
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -361,12 +357,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -375,7 +371,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -388,7 +384,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -399,20 +395,32 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-comma -Wno-missing-variable-declarations -Wno-pedantic \
+	-Wno-poison-system-directories
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################

1986/wall/.gitignore

@@ -0,0 +1 @@
+wall

1986/wall/Makefile

@@ -327,30 +327,26 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
-#
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
-#CWARN= -Wall -Wextra ${CSILENCE}
-CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
-
-# Silence warnings that ${CWARN} would normally complain about
+# Common C compiler warnings to silence
 #
+#CSILENCE=
 CSILENCE= -Wno-error -Wno-implicit-function-declaration -Wno-implicit-int \
 	-Wno-macro-redefined -Wno-parentheses -Wno-c99-extensions
-#CSILENCE= -Wno-implicit-int
 
-# compiler standard
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
+#CWARN= -Wall -Wextra ${CSILENCE}
+CWARN= -Wall -Wextra -pedantic ${CSILENCE}
+
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -362,12 +358,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -376,7 +372,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -389,7 +385,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -400,20 +396,33 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-implicit-int-conversion -Wno-missing-prototypess \
+	-Wno-missing-variable-declarations -Wno-poison-system-directories \
+	-Wno-strict-prototypes
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################

1987/Makefile

@@ -50,7 +50,7 @@
 # tool locations
 ################
 #
-SHELL= /bin/bash
+SHELL= bash
 MAKE= make
 
 

1987/README.md

@@ -1,10 +1,10 @@
 1987 marked the "The Fourth International Obfuscated C Code Contest"
 
-Copyright (c) 1987, Landon Curt Noll & Larry Bassel.
-All Rights Reserved.  Permission for personal, educational or non-profit use is
-granted provided this this copyright and notice are included in its entirety
-and remains unaltered.  All other uses must receive prior permission in writing
-from both Landon Curt Noll and Larry Bassel.
+
+Look at the README.md file for the given winner for information
+on how to compile the winner and how to run the winning program.
+Look at the winning source and try to figure how it does what it does!
+You may then wish to look at the Author's comments for even more details.
 
 The rules for 1987 suggested even more categories than in 1986.  Hints
 for what to do and not to do were also given in the rules.  For
@@ -19,3 +19,11 @@ published the 1987 winners.  Mark Horton included a version of the 1987
 winners in an appendix of his C book.  The first announcement of
 winners at the Summer 87 Usenix was helped by a small fly that
 danced all over the foils.
+
+=-=
+
+Copyright (c) 1987, Landon Curt Noll & Larry Bassel.
+All Rights Reserved.  Permission for personal, educational or non-profit use is
+granted provided this this copyright and notice are included in its entirety
+and remains unaltered.  All other uses must receive prior permission in writing
+from both Landon Curt Noll and Larry Bassel.

1987/biggar/Makefile

@@ -327,29 +327,25 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
+# Common C compiler warnings to silence
 #
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
+#CSILENCE=
+CSILENCE= -Wno-error -Wno-implicit-function-declaration -Wno-extra-semi
+
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
 #CWARN= -Wall -Wextra ${CSILENCE}
 CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
 
-# Silence warnings that ${CWARN} would normally complain about
-#
-CSILENCE= -Wno-error -Wno-implicit-function-declaration -Wno-extra-semi
-#CSILENCE= -Wno-implicit-int
-
-# compiler standard
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -361,12 +357,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -375,7 +371,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -388,7 +384,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -399,20 +395,31 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-implicit-int-conversion -Wno-poison-system-directories
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################

1987/heckbert/.gitignore

@@ -0,0 +1 @@
+heckbert

1987/heckbert/Makefile

@@ -327,30 +327,26 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
-#
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
-CWARN= -Wall -Wextra ${CSILENCE}
-#CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
-
-# Silence warnings that ${CWARN} would normally complain about
+# Common C compiler warnings to silence
 #
+#CSILENCE=
 CSILENCE= -Wno-empty-body -Wno-error -Wno-implicit-function-declaration -Wno-implicit-int \
 	-Wno-int-to-pointer-cast -Wno-logical-op-parentheses
-#CSILENCE= -Wno-implicit-int
 
-# compiler standard
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
+CWARN= -Wall -Wextra ${CSILENCE}
+#CWARN= -Wall -Wextra -pedantic ${CSILENCE}
+
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -362,12 +358,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -376,7 +372,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -389,7 +385,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -400,20 +396,32 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-comma -Wno-missing-prototypes -Wno-missing-variable-declarations \
+	-Wno-pedantic -Wno-poison-system-directories -Wno-shadow -Wno-strict-prototypes
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################

1987/hines/.gitignore

@@ -0,0 +1 @@
+hines

1987/hines/Makefile

@@ -327,29 +327,25 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
+# Common C compiler warnings to silence
 #
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
+#CSILENCE=
+CSILENCE= -Wno-error -Wno-implicit-function-declaration
+
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
 #CWARN= -Wall -Wextra ${CSILENCE}
 CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
 
-# Silence warnings that ${CWARN} would normally complain about
-#
-CSILENCE= -Wno-error -Wno-implicit-function-declaration
-#CSILENCE= -Wno-implicit-int
-
-# compiler standard
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -361,12 +357,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -375,7 +371,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -388,7 +384,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -399,20 +395,31 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-poison-system-directories -Wno-shorten-64-to-32
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################

1987/korn/.gitignore

@@ -0,0 +1 @@
+korn

1987/korn/Makefile

@@ -327,30 +327,26 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
-#
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
-#CWARN= -Wall -Wextra ${CSILENCE}
-CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
-
-# Silence warnings that ${CWARN} would normally complain about
+# Common C compiler warnings to silence
 #
+#CSILENCE=
 CSILENCE= -Wno-error -Wno-implicit-function-declaration -Wno-implicit-int -Dunix=1 \
 	-Wno-string-plus-int
-#CSILENCE= -Wno-implicit-int
 
-# compiler standard
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
+#CWARN= -Wall -Wextra ${CSILENCE}
+CWARN= -Wall -Wextra -pedantic ${CSILENCE}
+
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -362,12 +358,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -376,7 +372,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -389,7 +385,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -400,20 +396,32 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-array-bounds-pointer-arithmetic -Wno-format-nonliteral \
+	-Wno-poison-system-directories
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################

1987/lievaart/.gitignore

@@ -0,0 +1,2 @@
+lievaart
+lievaart2

1987/lievaart/Makefile

@@ -327,29 +327,25 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
+# Common C compiler warnings to silence
 #
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
+#CSILENCE=
+CSILENCE= -Wno-error -Wno-implicit-function-declaration -Wno-implicit-int
+
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
 CWARN= -Wall -Wextra ${CSILENCE}
 #CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
 
-# Silence warnings that ${CWARN} would normally complain about
-#
-CSILENCE= -Wno-error -Wno-implicit-function-declaration -Wno-implicit-int
-#CSILENCE= -Wno-implicit-int
-
-# compiler standard
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -361,12 +357,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -375,7 +371,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -388,7 +384,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -399,20 +395,33 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-comma -Wno-conditional-uninitialized -Wno-missing-prototypes \
+	-Wno-missing-variable-declarations -Wno-pedantic \
+	-Wno-poison-system-directories -Wno-shadow -Wno-strict-prototypes
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################

1987/wall/.gitignore

@@ -0,0 +1 @@
+wall

1987/wall/Makefile

@@ -327,31 +327,27 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
-#
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
-CWARN= -Wall -Wextra ${CSILENCE}
-#CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
-
-# Silence warnings that ${CWARN} would normally complain about
+# Common C compiler warnings to silence
 #
+#CSILENCE=
 CSILENCE= -Wno-char-subscripts -Wno-error -Wno-implicit-function-declaration \
 	-Wno-incompatible-library-redeclaration -Wno-return-type -Wno-string-plus-int \
-	-Wno-unknown-escape-sequence
-#CSILENCE= -Wno-implicit-int
+	-Wno-unknown-escape-sequence -Wno-deprecated-declarations
 
-# compiler standard
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
+CWARN= -Wall -Wextra ${CSILENCE}
+#CWARN= -Wall -Wextra -pedantic ${CSILENCE}
+
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -363,12 +359,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -377,7 +373,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -390,7 +386,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -401,20 +397,33 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-comma -Wno-format-nonliteral -Wno-implicit-int-conversion \
+	-Wno-missing-prototypes -Wno-missing-variable-declarations -Wno-pedantic \
+	-Wno-poison-system-directories -Wno-strict-prototypes
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################

1987/westley/.gitignore

@@ -0,0 +1 @@
+westley

1987/westley/Makefile

@@ -327,29 +327,25 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
+# Common C compiler warnings to silence
 #
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
+#CSILENCE=
+CSILENCE= -Wno-for-loop-analysis -Wno-unused-value
+
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
 #CWARN= -Wall -Wextra ${CSILENCE}
 CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
 
-# Silence warnings that ${CWARN} would normally complain about
-#
-CSILENCE= -Wno-for-loop-analysis -Wno-unused-value
-#CSILENCE= -Wno-implicit-int
-
-# compiler standard
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -361,12 +357,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -375,7 +371,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -388,7 +384,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -399,20 +395,32 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-comma -Wno-missing-variable-declarations \
+	-Wno-poison-system-directories -Wno-strict-prototypes
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################

1988/Makefile

@@ -50,7 +50,7 @@
 # tool locations
 ################
 #
-SHELL= /bin/bash
+SHELL= bash
 MAKE= make
 
 

1988/README.md

@@ -1,10 +1,10 @@
 1988 marked the "The Fifth International Obfuscated C Code Contest"
 
-Copyright (c) 1988, Landon Curt Noll & Larry Bassel.
-All Rights Reserved.  Permission for personal, educational or non-profit use is
-granted provided this this copyright and notice are included in its entirety
-and remains unaltered.  All other uses must receive prior permission in writing
-from both Landon Curt Noll and Larry Bassel.
+
+Look at the README.md file for the given winner for information
+on how to compile the winner and how to run the winning program.
+Look at the winning source and try to figure how it does what it does!
+You may then wish to look at the Author's comments for even more details.
 
 The maximum size of entries was raised from 1024 to 1536 bytes, however
 smaller entries were encouraged.  Due to the "Best Abuse of the Rules"
@@ -14,10 +14,18 @@ This year, the Grand Prize was given to the most unusual entry and best
 abuse of the C Preprocessor rather than the most well rounded entry.
 
 Rules and results were posted to comp.lang.c, comp.sources.unix and
-alt.sources.  The 1988 winners will be published in the Micro/Systems 
-Journal.  
+alt.sources.  The 1988 winners will be published in the Micro/Systems
+Journal.
 
 Winning entries for previous years were repackaged with each year
 being in its own directory.  Make files and hints were also provided.
 The package was posted to the: comp.sources.unix newsgroup.  They are
 also available on a wide number of Usenet archive sites.
+
+=-=
+
+Copyright (c) 1988, Landon Curt Noll & Larry Bassel.
+All Rights Reserved.  Permission for personal, educational or non-profit use is
+granted provided this this copyright and notice are included in its entirety
+and remains unaltered.  All other uses must receive prior permission in writing
+from both Landon Curt Noll and Larry Bassel.

1988/applin/.gitignore

@@ -0,0 +1,3 @@
+applin
+large.c
+zsmall

1988/applin/Makefile

@@ -327,29 +327,25 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
+# Common C compiler warnings to silence
 #
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
+#CSILENCE=
+CSILENCE= -Wno-expansion-to-defined -Wno-implicit-int
+
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
 #CWARN= -Wall -Wextra ${CSILENCE}
 CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
 
-# Silence warnings that ${CWARN} would normally complain about
-#
-CSILENCE= -Wno-expansion-to-defined -Wno-implicit-int
-#CSILENCE= -Wno-implicit-int
-
-# compiler standard
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -361,12 +357,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -375,7 +371,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -388,7 +384,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -399,20 +395,31 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-poison-system-directories
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################

1988/dale/.gitignore

@@ -0,0 +1 @@
+dale

1988/dale/Makefile

@@ -327,30 +327,26 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
-#
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
-CWARN= -Wall -Wextra ${CSILENCE}
-#CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
-
-# Silence warnings that ${CWARN} would normally complain about
+# Common C compiler warnings to silence
 #
+#CSILENCE=
 CSILENCE= -Wno-implicit-function-declaration -Wno-implicit-int -Wno-keyword-macro \
 	-Wno-pointer-to-int-cast -Wno-return-type -Wno-unused-value
-#CSILENCE= -Wno-implicit-int
 
-# compiler standard
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
+CWARN= -Wall -Wextra ${CSILENCE}
+#CWARN= -Wall -Wextra -pedantic ${CSILENCE}
+
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -362,12 +358,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -376,7 +372,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -389,7 +385,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -400,20 +396,31 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-poison-system-directories
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################
@@ -427,8 +434,8 @@ OBJ= ${PROG}.o
 DATA=
 TARGET= ${PROG}
 #
-ALT_OBJ= ${PROG}.orig.o
-ALT_TARGET= ${PROG}.orig
+ALT_OBJ=
+ALT_TARGET=
 
 
 #################

1988/isaak/.gitignore

@@ -0,0 +1 @@
+isaak

1988/isaak/Makefile

@@ -327,33 +327,29 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
-#
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
-CWARN= -Wall -Wextra ${CSILENCE}
-#CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
-
-# Silence warnings that ${CWARN} would normally complain about
+# Common C compiler warnings to silence
 #
+#CSILENCE=
 CSILENCE=  -Wno-comma -Wno-implicit-function-declaration -Wno-format-insufficient-args \
 	-Wno-implicit-int -Wno-incompatible-library-redeclaration -Wno-missing-prototypes \
 	-Wno-missing-variable-declarations -Wno-poison-system-directories -Wno-return-type \
 	-Wno-shadow -Wno-shift-op-parentheses -Wno-strict-prototypes -Wno-unreachable-code \
 	-Wno-unused-macros
-#CSILENCE= -Wno-implicit-int
 
-# compiler standard
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
+CWARN= -Wall -Wextra ${CSILENCE}
+#CWARN= -Wall -Wextra -pedantic ${CSILENCE}
+
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -365,13 +361,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 #CDEFINE=
 CDEFINE= -DI=B -DO=- -Dy
-#CDEFINE= -DIOCCC=26
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -380,7 +375,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -393,7 +388,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -404,20 +399,31 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-pedantic
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################

1988/litmaath/.gitignore

@@ -0,0 +1 @@
+litmaath

1988/litmaath/Makefile

@@ -327,29 +327,25 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
+# Common C compiler warnings to silence
 #
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
+#CSILENCE=
+CSILENCE= -Wno-error -Wno-implicit-function-declaration -Wno-logical-op-parentheses
+
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
 #CWARN= -Wall -Wextra ${CSILENCE}
 CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
 
-# Silence warnings that ${CWARN} would normally complain about
-#
-CSILENCE= -Wno-error -Wno-implicit-function-declaration -Wno-logical-op-parentheses
-#CSILENCE= -Wno-implicit-int
-
-# compiler standard
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -361,12 +357,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -375,7 +371,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -388,7 +384,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -399,20 +395,31 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-poison-system-directories
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################

1988/phillipps/.gitignore

@@ -0,0 +1 @@
+phillipps

1988/phillipps/Makefile

@@ -327,30 +327,27 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
+# Common C compiler warnings to silence
 #
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
+#CSILENCE=
+CSILENCE= -Wno-pedantic -Wno-logical-not-parentheses -Wno-implicit-function-declaration \
+	-Wno-incompatible-pointer-types -Wno-int-conversion -Wno-pointer-to-int-cast \
+	-Wno-pointer-integer-compare -Wno-compare-distinct-pointer-types
+
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
 #CWARN= -Wall -Wextra ${CSILENCE}
 CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
 
-# Silence warnings that ${CWARN} would normally complain about
-#
-CSILENCE= -Wno-pedantic -Wno-logical-not-parentheses -Wno-implicit-function-declaration \
-	-Wno-incompatible-pointer-types -Wno-int-conversion -Wno-pointer-to-int-cast
-#CSILENCE= -Wno-implicit-int
-
-# compiler standard
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -362,12 +359,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -376,7 +373,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -389,7 +386,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -400,20 +397,31 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-poison-system-directories -Wno-comma
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################
@@ -427,8 +435,8 @@ OBJ= ${PROG}.o
 DATA=
 TARGET= ${PROG}
 #
-ALT_OBJ= ${PROG}.orig.o
-ALT_TARGET= ${PROG}.orig
+ALT_OBJ=
+ALT_TARGET=
 
 
 #################
@@ -450,10 +458,6 @@ ${PROG}: ${PROG}.c
 alt: data ${ALT_TARGET}
 	@${TRUE}
 
-${PROG}.orig: ${PROG}.orig.c
-	@echo "NOTE: The original source may not compile using modern compilers."
-	${CC} ${CFLAGS} $< -o $@ ${LIBS}
-
 # data files
 #
 data: ${DATA}

1988/phillipps/phillipps.c

@@ -1,7 +1,4 @@
-main(t,_,a )
-char
-*
-a;
+main(int t,char **_,char **a)
 {
 				return!
 
@@ -9,7 +6,7 @@ a;
 t<3?
 
 main(-79,-13,a+
-main(-87,1-_,
+main(-87,1-(int)_,
 main(-86, 0, a+1 )
 
 

1988/reddy/.gitignore

@@ -0,0 +1 @@
+reddy

1988/reddy/Makefile

@@ -327,30 +327,26 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
+# Common C compiler warnings to silence
 #
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
+#CSILENCE=
+CSILENCE= -Wno-pedantic -Wno-error -Wno-implicit-function-declaration -Wno-parentheses \
+	-Wno-return-type -Wno-deprecated-declarations
+
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
 #CWARN= -Wall -Wextra ${CSILENCE}
 CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
 
-# Silence warnings that ${CWARN} would normally complain about
-#
-CSILENCE= -Wno-pedantic -Wno-error -Wno-implicit-function-declaration -Wno-parentheses \
-	-Wno-return-type
-#CSILENCE= -Wno-implicit-int
-
-# compiler standard
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -362,12 +358,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -376,7 +372,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -389,7 +385,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -400,20 +396,32 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-comma -Wno-missing-prototypes -Wno-missing-variable-declarations \
+	-Wno-poison-system-directories -Wno-strict-prototypes
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################

1988/robison/.gitignore

@@ -0,0 +1 @@
+robison

1988/robison/Makefile

@@ -327,29 +327,25 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
+# Common C compiler warnings to silence
 #
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
+#CSILENCE=
+CSILENCE= -Wno-error -Wno-implicit-function-declaration
+
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
 CWARN= -Wall -Wextra ${CSILENCE}
 #CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
 
-# Silence warnings that ${CWARN} would normally complain about
-#
-CSILENCE= -Wno-error -Wno-implicit-function-declaration
-#CSILENCE= -Wno-implicit-int
-
-# compiler standard
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -361,12 +357,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -375,7 +371,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -388,7 +384,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -399,20 +395,32 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-comma -Wno-implicit-int-conversion -Wno-missing-variable-declarations \
+	-Wno-pedantic -Wno-poison-system-directories
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################

1988/spinellis/.gitignore

@@ -0,0 +1,2 @@
+prog.c
+spinellis

1988/spinellis/Makefile

@@ -327,29 +327,25 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
+# Common C compiler warnings to silence
 #
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
+#CSILENCE=
+CSILENCE= -Wno-empty-translation-unit
+
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
 #CWARN= -Wall -Wextra ${CSILENCE}
 CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
 
-# Silence warnings that ${CWARN} would normally complain about
-#
-CSILENCE=
-#CSILENCE= -Wno-implicit-int
-
-# compiler standard
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -361,12 +357,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -375,7 +371,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -388,7 +384,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -399,20 +395,31 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-empty-translation-unit -Wno-poison-system-directories
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################
@@ -443,15 +450,7 @@ all: data ${TARGET}
 
 ${PROG}: ${PROG}.c
 	@echo "NOTE: This entry requires a non-standard K&R C compiler to compile."
-	${RM} -f $@
-	@echo 'On the command line, type in the following command and then'
-	@echo 'then type in a C program following by EOF (control D):'
-	@echo
-	@echo '${CPP} ${PROG}.c > prog.c'
-	@echo
-	@echo 'Then on the command line, type in the following command:'
-	@echo
-	@echo '${CC} prog.c -o ${PROG} ${LIBS}'
+	${CC} ${CFLAGS} $< -o $@ ${LIBS}
 
 # alternative executable
 #

1988/westley/.gitignore

@@ -0,0 +1 @@
+westley

1988/westley/Makefile

@@ -327,29 +327,25 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
+# Common C compiler warnings to silence
 #
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
+#CSILENCE=
+CSILENCE= -Wno-error -Wno-implicit-function-declaration -Wno-return-type
+
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
 #CWARN= -Wall -Wextra ${CSILENCE}
 CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
 
-# Silence warnings that ${CWARN} would normally complain about
-#
-CSILENCE= -Wno-error -Wno-implicit-function-declaration -Wno-return-type
-#CSILENCE= -Wno-implicit-int
-
-# compiler standard
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -361,12 +357,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -375,7 +371,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -388,7 +384,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -399,20 +395,32 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-missing-prototypes -Wno-missing-variable-declarations \
+	-Wno-poison-system-directories -Wno-strict-prototypes
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################

1989/Makefile

@@ -50,7 +50,7 @@
 # tool locations
 ################
 #
-SHELL= /bin/bash
+SHELL= bash
 MAKE= make
 
 

1989/README.md

@@ -1,16 +1,14 @@
 1989 marked the "The Sixth International Obfuscated C Code Contest"
 
-Copyright (c) 1989, Landon Curt Noll & Larry Bassel.
-All Rights Reserved.  Permission for personal, educational or non-profit use is
-granted provided this this copyright and notice are included in its entirety
-and remains unaltered.  All other uses must receive prior permission in writing
-from both Landon Curt Noll and Larry Bassel.
+
+Look at the README.md file for the given winner for information
+on how to compile the winner and how to run the winning program.
+Look at the winning source and try to figure how it does what it does!
+You may then wish to look at the Author's comments for even more details.
 
 Instructions for use: Run make to compile entries (it is possible
 that on System V or non-unix systems the makefile needs to be
-changed). Look at the source and try to figure out what the programs
-do, and run them with various inputs. If you want to, look at the
-hints files for (minor) spoilers.
+changed).
 
 This year, the Grand Prize was given to the most useful program.
 
@@ -18,8 +16,7 @@ The "Strangest abuse of the rules" award was given this year to stress
 the fact that starting in 1990, compiling entries must result an
 executable regular file.
 
-In two other cases, we included System V portable versions of winning
-programs.  The makefile always uses the portable version of the "Best
+The makefile always uses the portable version of the "Best
 self modifying program" because there as no loss of functionality in
 using it.  In the case of the "Best game" winner, however, some
 functionality is lost in the portable version and so the makefile uses
@@ -30,3 +27,11 @@ Rules and results were posted to comp.lang.c, comp.sources.unix, and
 alt.sources.  They have been made available on a wide number of Usenet
 archive sites such as uunet.  The 1989 winners will be published in the
 Micro/Systems Journal.
+
+=-=
+
+Copyright (c) 1989, Landon Curt Noll & Larry Bassel.
+All Rights Reserved.  Permission for personal, educational or non-profit use is
+granted provided this this copyright and notice are included in its entirety
+and remains unaltered.  All other uses must receive prior permission in writing
+from both Landon Curt Noll and Larry Bassel.

1989/fubar/.gitignore

@@ -0,0 +1,3 @@
+fubar
+ouroboros
+ouroboros.c

1989/fubar/Makefile

@@ -327,29 +327,25 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
+# Common C compiler warnings to silence
 #
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
+#CSILENCE=
+CSILENCE= -Wno-implicit-function-declaration -Wno-incompatible-library-redeclaration
+
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
 #CWARN= -Wall -Wextra ${CSILENCE}
 CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
 
-# Silence warnings that ${CWARN} would normally complain about
-#
-CSILENCE= -Wno-implicit-function-declaration -Wno-incompatible-library-redeclaration
-#CSILENCE= -Wno-implicit-int
-
-# compiler standard
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -361,12 +357,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -375,7 +371,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -388,7 +384,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -399,20 +395,31 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+#CSILENCE+=
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################
@@ -423,11 +430,11 @@ ENTRY= fubar
 PROG= ${ENTRY}
 #
 OBJ= ${PROG}.o
-DATA= fubar.sh fubar.orig.sh
+DATA= fubar.sh
 TARGET= ${PROG}
 #
-ALT_OBJ= ${PROG}.orig.o
-ALT_TARGET= ${PROG}.orig
+ALT_OBJ=
+ALT_TARGET=
 
 
 #################

1989/fubar/README.md

@@ -1,4 +1,4 @@
-Best self-modifying program:
+# Best self-modifying program:
 
 	Jay Vosburgh
         Sequent Computer Systems, Inc
@@ -7,38 +7,22 @@ Best self-modifying program:
         97006
         USA
 
-Judges notes:
+## To build:
+
+        make all
+
+### To run
+
+	./fubar 2
+
+## Judges' comments
 
 	Run this with a single digit argument (or wait a long time).
 
-	There are 2 versions of this program, the one that was entered,
-	and one that was changed by the judges to be more portable. The
-	makefile runs the latter version by default.
-
 	The blank line at the beginning of the source is mandatory.
 	Do you know why?
 
-	The shell script run by the makefile joins lines that may be
-	cut up by mailers.  The file "fubar.orig.c", for example, needs
-	the 6th and 7th lines joined together (with a space between
-	them) to recreate the original entry.  If you fix the file, you
-	will need to change the last 8 linnes of "fubar.orig.sh" to read:
-
-		cp fubar.orig.c ouroboros.c
-		chmod +x ouroboros.c
-		csh ouroboros.c $1
-		rm -f ouroboros.c x1 x
-
-	The more portable version, "fubar.c", can be fixed by joining the
-	7th and 8th lines in the same way.  As well, if you fix "fubar.c"
-	you will need to also change the last 8 lines to "fubar.sh" to read:
-
-		cp fubar.c ouroboros.c
-		chmod +x ouroboros.c
-		csh ouroboros.c $1
-		rm -f ouroboros.c x1 x
-
-Selected notes from the author:
+## Author's comments
 
 	In a nutshell, this is probably the slowest and most
 	obnoxious factorial program ever written.  Unfortunately, 

1989/fubar/fubar.orig.c

@@ -1,18 +0,0 @@
-#include <stdio.h>
-#define QQ      1
-#define TT         1
-#define cc main(c,v) int c; char **v;{char tt[12],qq[7]; int q=0,o=1,l=1,m=1;struct {int c;} f;
-#define incest qq[6]='\0';tt[11]='\0';if(QQ==atoi(v[1])+1){(void)fprintf(stderr,"%s factorial = %d\n",v[1], TT);exit(1);}o=c+f
-#define x ;while(EOF!=(o=getchar())){if(l && q=='Q' && o=='Q'){l=0;(void)getchar();(void)fread(qq,6,1,stdin);(void)printf("Q %6d",atoi(qq)+1);}else
-if(m && q=='T' && o=='T'){m=0;(void)fread(tt,11,1,stdin);(void)printf("T %9d\n",atoi(tt)*QQ);}else {q=o;(void)putchar(o);}}exit(0);}
-cc incest.c -o x 
-#define zxc ;{/*
-cat incest.c | x $1 >! x1
-if ($status != 0) then 
-exit
-endif
-mv x1 incest.c
-chmod +x incest.c
-exec incest.c $1
-exit
-*/

1989/fubar/fubar.sh

@@ -1,4 +1,4 @@
-:
+#!/usr/bin/env sh
 # to run fubar in the 'proper' way
 
 # parse args
@@ -15,5 +15,5 @@ r fubar.c
 w ouroboros.c
 EOF
 chmod +x ouroboros.c
-ouroboros.c $1
+./ouroboros.c $1
 rm -f ouroboros.c x1 x

1989/jar.1/.gitignore

@@ -0,0 +1 @@
+jar.1

1989/jar.1/Makefile

@@ -327,29 +327,25 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
-#
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
-#CWARN= -Wall -Wextra ${CSILENCE}
-CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
-
-# Silence warnings that ${CWARN} would normally complain about
+# Common C compiler warnings to silence
 #
 CSILENCE=
 #CSILENCE= -Wno-implicit-int
 
-# compiler standard
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
+#CWARN= -Wall -Wextra ${CSILENCE}
+CWARN= -Wall -Wextra -pedantic ${CSILENCE}
+
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -361,12 +357,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -375,7 +371,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -388,7 +384,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -399,20 +395,31 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+#CSILENCE+=
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################

1989/jar.2/.gitignore

@@ -0,0 +1 @@
+jar.2

1989/jar.2/Makefile

@@ -327,29 +327,25 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
-#
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
-CWARN= -Wall -Wextra ${CSILENCE}
-#CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
-
-# Silence warnings that ${CWARN} would normally complain about
+# Common C compiler warnings to silence
 #
+#CSILENCE=
 CSILENCE= -Wno-implicit-function-declaration -Wno-missing-braces -Wno-parentheses
-#CSILENCE= -Wno-implicit-int
 
-# compiler standard
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
+#CWARN= -Wall -Wextra ${CSILENCE}
+CWARN= -Wall -Wextra -pedantic ${CSILENCE}
+
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -361,12 +357,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -375,7 +371,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -388,7 +384,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -399,20 +395,31 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+#CSILENCE+=
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################

1989/jar.2/README.md

@@ -15,6 +15,9 @@ Judges notes:
 	all this functionality in such a small, densely packed program,
 	is impressive enough to win the Best of show award.
 
+	To have a chance to compile under a modern CPP, we had to
+	replace `#D` with `#define`.
+
 Selected notes from the author:
 
 	This program implements a Lisp interpreter in 1465 bytes of source.

1989/ovdluhe/.gitignore

@@ -0,0 +1 @@
+ovdluhe

1989/ovdluhe/Makefile

@@ -327,30 +327,27 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
+# Common C compiler warnings to silence
 #
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
+#CSILENCE=
+CSILENCE= -Wno-char-subscripts -Wno-constant-conversion -Wno-empty-body \
+	-Wno-implicit-function-declaration -Wno-parentheses -Wno-unsequenced \
+	-Wno-unused-variable
+
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
 #CWARN= -Wall -Wextra ${CSILENCE}
 CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
 
-# Silence warnings that ${CWARN} would normally complain about
-#
-CSILENCE= -Wno-char-subscripts -Wno-constant-conversion -Wno-empty-body \
-	-Wno-implicit-function-declaration -Wno-parentheses -Wno-unsequenced
-#CSILENCE= -Wno-implicit-int
-
-# compiler standard
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -362,12 +359,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -376,7 +373,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -389,7 +386,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -400,20 +397,33 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-comma -Wno-implicit-int-conversion -Wno-missing-prototypes \
+	-Wno-missing-variable-declarations -Wno-poison-system-directories
+	-Wno-sign-conversion -Wno-strict-prototypes
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################
@@ -427,8 +437,8 @@ OBJ= ${PROG}.o
 DATA=
 TARGET= ${PROG}
 #
-ALT_OBJ= ${PROG}.orig.o
-ALT_TARGET= ${PROG}.orig
+ALT_OBJ=
+ALT_TARGET=
 
 
 #################
@@ -451,10 +461,6 @@ ${PROG}: ${PROG}.c
 alt: data ${ALT_TARGET}
 	@${TRUE}
 
-${PROG}.orig: ${PROG}.orig.c
-	@echo "NOTE: The original source may not compile using modern compilers."
-	${CC} ${CFLAGS} $< -o $@ ${LIBS}
-
 # data files
 #
 data: ${DATA}

1989/ovdluhe/README.md

@@ -19,6 +19,9 @@ Judges notes:
 	The program stops when it reaches the end of the template buffer 
 	by chance or is killed.
 
+	To have a chance to compile under a modern CPP, we had to
+	replace `#D` with `#define`.
+
 Selected notes from the author:
 
 	This program implements an "Eddington ape" - it generates

1989/ovdluhe/ovdluhe.c

@@ -1,15 +1,14 @@
 #include <string.h>
 typedef char ape
-#define D define
-#D EA register
-#D EP unsigned
-#D A 1
-#D AP (A<<A)
-#D P (A<<AP)
-#D AE ((P<<P)<<A)
-#D PE (((A<<P)<<P)<<P)
-#D E ((EP)A>>A)
-#D APE {EA EP ape ea=AE;while(ea--) e[ea]=E;}
+#define EA register
+#define EP unsigned
+#define A 1
+#define AP (A<<A)
+#define P (A<<AP)
+#define AE ((P<<P)<<A)
+#define PE (((A<<P)<<P)<<P)
+#define E ((EP)A>>A)
+#define APE {EA EP ape,ea=AE;while(ea--) e[ea]=E;}
 ;ape a[PE+A],ap,*ae,p[P+A],e[AE];
 main(){ape pe,*ep=a;srand((EP)time((long)E));
 while(((*(ep++)=getchar())!=-A)&&((ep-a)<PE));

1989/paul/.gitignore

@@ -0,0 +1 @@
+paul

1989/paul/Makefile

@@ -327,31 +327,27 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
-#
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
-CWARN= -Wall -Wextra ${CSILENCE}
-#CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
-
-# Silence warnings that ${CWARN} would normally complain about
+# Common C compiler warnings to silence
 #
+#CSILENCE=
 CSILENCE= -Wno-error -Wno-implicit-function-declaration -Wno-format-security \
 	-Wno-incompatible-library-redeclaration -Wno-int-to-pointer-cast \
 	-Wno-pointer-to-int-cast -Wno-return-type
-#CSILENCE= -Wno-implicit-int
 
-# compiler standard
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
+CWARN= -Wall -Wextra ${CSILENCE}
+#CWARN= -Wall -Wextra -pedantic ${CSILENCE}
+
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -363,12 +359,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -377,7 +373,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -390,7 +386,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -401,20 +397,32 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-cast-align -Wno-missing-prototypes -Wno-pedantic \
+	-Wno-poison-system-directories -Wno-strict-prototypes
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################

1989/robison/.gitignore

@@ -0,0 +1 @@
+robison

1989/robison/Makefile

@@ -327,29 +327,25 @@ X11_LIBDIR= /opt/X11/lib
 #X11_INCDIR= /usr/X11/include
 X11_INCDIR= /opt/X11/include
 
-# Compiler warnings
+# Common C compiler warnings to silence
 #
-#CWARN=
-#CWARN= -Wall
-#CWARN= -Wall -Wextra
+#CSILENCE=
+CSILENCE= -Wno-unused-parameter
+
+# Common C compiler warning flags
+#
+#CWARN= ${CSILENCE}
+#CWARN= -Wall ${CSILENCE}
 #CWARN= -Wall -Wextra ${CSILENCE}
 CWARN= -Wall -Wextra -pedantic ${CSILENCE}
-#CWARN= -Wall -Wextra -Weverything
-#CWARN= -Wall -Wextra -Weverything -pedantic
-#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
 
-# Silence warnings that ${CWARN} would normally complain about
-#
-CSILENCE= -Wno-unused-parameter
-#CSILENCE= -Wno-implicit-int
-
-# compiler standard
+# Compiler standard
 #
 #CSTD=
 #CSTD= -ansi
 CSTD= -std=gnu89
 
-# compiler bit architecture
+# Compiler bit architecture
 #
 # Some entries require 32-bitness:
 # ARCH= -m32
@@ -361,12 +357,12 @@ CSTD= -std=gnu89
 #
 ARCH=
 
-# defines that are needed to compile
+# Defines that are needed to compile
 #
 CDEFINE=
-#CDEFINE= -DIOCCC=26
+#CDEFINE= -DIOCCC
 
-# include files that are needed to compile
+# Include files that are needed to compile
 #
 CINCLUDE=
 #CINCLUDE= -include stdlib.h
@@ -375,7 +371,7 @@ CINCLUDE=
 #CINCLUDE= -I ${X11_INCDIR}
 #CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2
 
-# optimization
+# Optimization
 #
 # Most compiles will safely use -O2.  Some can use only -O1 or -O.
 # A few compilers have broken optimizers or this entry make break
@@ -388,7 +384,7 @@ CINCLUDE=
 #OPT= -O2
 OPT= -O3
 
-# default flags for ANSI C compilation
+# Default flags for ANSI C compilation
 #
 CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
@@ -399,20 +395,32 @@ LIBS=
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
 
-# ANSI compiler
-#
-# Set CC to the name of your ANSI compiler.
-#
-# Some entries seem to need gcc.  If you have gcc, set
-# both CC and MAY_NEED_GCC to gcc.
-#
-# If you do not have gcc, set CC to the name of your ANSI compiler, and
-# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
-# to disable such programs.
+# C compiler to use
 #
 CC= cc
 #CC=clang
-MAY_NEED_GCC= gcc
+#CC=gcc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq ($(CC),clang)
+#
+CSILENCE+= -Wno-missing-prototypes -Wno-poison-system-directories \
+	-Wno-strict-prototypes
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq ($(CC),gcc)
+#
+#CSILENCE+=
+#
+#CWARN+=
+#
+endif
 
 
 ##############################