use include 1337.mk to hold 1337 hacker rulz

Updated 1337 hacker rulz to version 7.

Added `1337.mk` to contain the updated 1337 hacker rulz (v7).

We use an optional include of `1337.mk` (or `../1337.mk`,
or `../../1337.mk`) to include the 1337 hacker rulz.

Changed `make deep_magic` to `make more_magic`.

Changed `bin/tar-entry.sh` VERSION from "1.3.7 2024-07-22"
to "1.3.8 2024-07-23".

Changed `bin/tar-year.sh` VERSION from "1.2.5 2024-07-22"
to "1.2.6 2024-07-23".

Add `make new_entry` to `YYYY/Makefile` and `template/Makefile.year`.

Change `make new_year` to use `sort -n -u`.

Made minor debug message fixes to `bin/new-year.sh`.

Changed `bin/new-year.sh` VERSION from "1.3 2024-07-23"
to "1.3.1 2024-07-23".

Improved `bin/add-dir.sh` to update `YYYY/Makefile` with
the new entry directory name.

Changed `bin/add-dir.sh` VERSION from "1.0 2024-07-21"
to "1.1 2024-07-23".

Performed `make www` to accomplish the above and to test under macOS.

template/entry/Makefile.entry

@@ -0,0 +1,215 @@
+#!/usr/bin/env make
+#
+# prog - an example Makefile <<=== change "an example Makefile" to a suitable title for entry
+#
+# Please copy this file into your entry directory under the name: Makefile
+# Modify the resulting Makefile as needed.
+
+
+#############################
+# shell used by this Makefile
+#############################
+#
+SHELL= bash
+
+
+#######################
+# common tool locations
+#######################
+#
+CC= cc
+GINDENT= gindent
+MV= mv
+RM= rm
+TRUE= true
+
+# Common C compiler warnings to silence
+#
+# Example: CSILENCE= -Wno-some-thing -Wno-another-thing
+#
+# NOTE: If you add -Wno-stuff to CSILENCE, please update
+#	CUNKNOWN in the next comment block.
+#
+# NOTE: Please don't add -Wno-unknown-warning-option to CSILENCE.
+#
+#
+CSILENCE=
+
+# Attempt to silence unknown warnings
+#
+# If you add -Wno-stuff to CSILENCE, then please change CUNKNOWN to read:
+#
+#	CUNKNOWN= -Wno-unknown-warning-option
+#
+CUNKNOWN=
+
+# Common C compiler warning flags
+#
+CWARN= -Wall -Wextra -pedantic ${CSILENCE} ${CUNKNOWN}
+
+# The standard to compile against
+#
+# Your IOCCC submission is free to require older C standards, or
+# even not specify a C standard at all.  We suggest trying
+# for -std=gnu17, but that is not a requirement and you won't
+# be penalized if you name CSTD empty or use another
+# well known and reasonably widely implemented C standard.
+#
+CSTD= -std=gnu17
+
+# Compiler bit architecture
+#
+# Example for 32-bitness: ARCH= -m32
+# Example for 64-bitness: ARCH= -m64
+#
+# NOTE: Normally one should not specify a specific architecture.
+#
+ARCH=
+
+# Defines that are needed to compile
+#
+# Example: -Dfoo -Dbar=baz
+#
+CDEFINE=
+
+# Include files that are needed to compile
+#
+# Example: CINCLUDE= -include stdio.h
+#
+CINCLUDE=
+
+# Other flags to pass to the C compiler
+#
+# Example: COTHER= -fno-math-errno
+#
+COTHER=
+
+# Optimization
+#
+OPT= -O3 -g3
+
+# Default flags for ANSI C compilation
+#
+CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${COTHER} ${OPT}
+
+# Libraries needed to build
+#
+LDFLAGS=
+
+# C compiler to use
+#
+CC= cc
+
+# Compiler add-ons or replacements for clang only
+#
+ifeq "$(findstring $(CLANG),${CC})" "$(CLANG)"
+#
+CSILENCE+=
+#
+CWARN+= -Weverything
+#
+endif
+
+# Specific add-ons or replacements for gcc only
+#
+ifeq "$(findstring $(GCC),${CC})" "$(GCC)"
+#
+CSILENCE+=
+#
+CWARN+=
+#
+endif
+
+
+###########################################
+# Special Makefile variables for this entry
+###########################################
+
+# what to build
+#
+PROG= prog
+OBJ= ${PROG}.o
+TARGET= ${PROG}
+
+# list any data files supplied with the submission
+#
+DATA=
+
+
+#################
+# build the entry
+#################
+#
+all: data ${TARGET}
+	@${TRUE}
+
+.PHONY: all data try clean clobber install
+
+# how to compile
+#
+${PROG}: ${PROG}.c
+	${CC} ${CFLAGS} $< -o $@ ${LDFLAGS}
+
+# data files
+#
+data: ${DATA}
+	@${TRUE}
+
+# one suggested way to run the program
+#
+try: ${PROG} ${DATA}
+	@# remove these comments
+	@# notice how we do not assume that . is a component of the $PATH environment variable
+	@# change this next line as needed
+	./${PROG} some arguments
+
+
+###############
+# utility rules
+###############
+#
+clean:
+	${RM} -f ${OBJ}
+	@-if [[ -f indent.c ]]; then \
+	    echo ${RM} -f indent.c; \
+	    ${RM} -f indent.c; \
+	fi
+
+clobber: clean
+	${RM} -f ${TARGET}
+	@-if [[ -e sandwich ]]; then \
+	    ${RM} -f sandwich; \
+	    echo 'ate sandwich'; \
+	fi
+
+# Do not install prog, please!
+#
+install:
+	@echo "Dr. Spock says that is not logical!"
+	@${TRUE}
+
+# you may be able to misunderstand the source by reading indent.c
+#
+indent.c: ${PROG}.c
+	@if which "${GINDENT}" >/dev/null 2>&1; then \
+	    echo ${RM} -f $@; \
+	    ${RM} -f $@; \
+	    echo "${GINDENT} < $< > $@"; \
+	    ${GINDENT} < $< > $@; \
+	elif which "${INDENT}" >/dev/null 2>&1; then \
+	    echo ${RM} -f $@; \
+	    ${RM} -f $@; \
+	    echo "${INDENT} < $< > $@"; \
+	    ${INDENT} < $< > $@; \
+	else \
+	    echo "no indent tool found, ident $< yourself, sorry"; \
+	    echo "exit 17"; \
+	    exit 17; \
+	fi
+
+
+######################################
+# optional include of 1337 hacker rulz
+######################################
+
+-include 1337.mk ../1337.mk ../../1337.mk