diff --git a/2018/anderson/.gitignore b/2018/anderson/.gitignore
index ea1749132..ffb16e793 100644
--- a/2018/anderson/.gitignore
+++ b/2018/anderson/.gitignore
@@ -1 +1,2 @@
 prog
+prog.alt
diff --git a/2018/anderson/Makefile b/2018/anderson/Makefile
index abf722999..5840bc4a3 100644
--- a/2018/anderson/Makefile
+++ b/2018/anderson/Makefile
@@ -1,6 +1,6 @@
 #!/usr/bin/env make
 #
-# IOCCC 2018 winning entry - bellard
+# IOCCC 2018 winning entry - anderson
 
 ################################################################################
 #
@@ -63,7 +63,7 @@ X11_INCDIR= /opt/X11/include
 # Common C compiler warnings to silence
 #
 #CSILENCE=
-CSILENCE= -Wno-c99-extensions -Wno-gcc-compat -Wno-vla-extension
+CSILENCE= -Wno-unsequenced
 
 # Common C compiler warning flags
 #
@@ -101,8 +101,8 @@ 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
+#CINCLUDE= -I ${X11_INCDIR} -I ${X11_INCDIR}/X11
+#CINCLUDE= `${SDL2_CONFIG} --cflags`
 
 # Optimization
 #
@@ -126,7 +126,7 @@ CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 LIBS=
 #LIBS= -lm
 #LIBS= -L ${X11_LIBDIR} -lX11
-#LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL
+#LIBS= `${SDL2_CONFIG} --libs`
 
 # C compiler to use
 #
@@ -160,10 +160,11 @@ endif
 # Special flags for this entry
 ##############################
 #
-ENTRY= bellard
+ENTRY= anderson
 PROG= prog
 #
 OBJ= ${PROG}.o
+CSRC= ${PROG}.o
 DATA=
 TARGET= ${PROG}
 #
@@ -185,14 +186,14 @@ all: data ${TARGET}
 ${PROG}: ${PROG}.c
 	${CC} ${CFLAGS} $< -o $@ ${LIBS}
 
-${PROG}.alt: ${PROG}.alt.c
-	${CC} ${CFLAGS} $< -o $@ ${LIBS}
-
 # alternative executable
 #
 alt: data ${ALT_TARGET}
 	@${TRUE}
 
+${PROG}.alt: ${PROG}.alt.c
+	${CC} ${CFLAGS} $< -o $@ ${LIBS}
+
 # data files
 #
 data: ${DATA}
@@ -327,4 +328,3 @@ pluto: charon
 	@echo "dwarf is a type of planet"
 	@echo "therefore, $@ is a planet"
 	@echo "having lots of planets is good feature because supernovae can help ${MAKE} a lot of them"
-
diff --git a/2018/anderson/README.md b/2018/anderson/README.md
index 72e9a0a5e..3b624167b 100644
--- a/2018/anderson/README.md
+++ b/2018/anderson/README.md
@@ -1,50 +1,61 @@
 # Most able to divine code gaps
 
-Derek Anderson  
+    Derek Anderson  
+`
+# To build:
 
-## To build:
+```sh
+make
+```
 
-        make all
+### To run:
 
-### To run
-
-    ./prog < textfile
+```sh
+./prog < textfile
+```
 
 ### Try:
 
-    ./prog < prog.c
-    ./prog < prog.alt.c
-    ./prog < README.md
+```sh
+./prog < prog.c
+./prog < prog.alt.c
+./prog < README.md
+```
 
-### Alternate code
+### Alternate code:
 
-An alternate version of this entry, prog.alt.c, is provided.
-Compare `prog.c` and `prog.alt.c` and find out why we had to modify the entry, and what confused the author
-(see the author's remarks). No, it was not the shape of the Roman V that we, or the compiler, didn't like.
+An alternate version of this entry, `prog.alt.c`, is provided.
 
-### Alternate code
+Compare `prog.c` and `prog.alt.c` and find out why we had to modify
+the entry, and what confused the author (see the author's remarks).
+No, it was not the shape of the Roman V that we, or the compiler,
+didn't like.
 
 To compile this alternate version:
 
-    make alt
+```sh
+make alt
+```
 
 Use `prog.alt` as you would `prog` above.
 
-### Selected Judges Remarks:
+## Judges' comments:
 
 With this entry, you won't need to turn your monitor [upside down](http://en.wikipedia.org/wiki/River_%28typography%29)!
 
 ## Author's comments:
 
-## Compiling the program
+### Compiling the program
 
-    gcc -Wall -Wextra -Wpedantic -O3 -std=c11 prog.c -o prog
+```sh
+cc -Wall -Wextra -Wpedantic -O3 -std=c11 prog.c -o prog
+```
 
 Also works with a standard of c99, but c90/c89 will not compile due to
 for loop initial declarations, along with additional warnings about
 variable length arrays and lack of a return statement.
 
-## Additional info
+### Additional info
 
 This small program, when given text on stdin, will produce a pattern of
 squiggly lines. This pattern is deterministic, and it shouldn't be too
@@ -75,11 +86,10 @@ variable assignment, such as `j=k`. There is some filler fluff, such as
 added for the purpose of making certain things line up right, and only
 secondarily to obfuscate.
 
---------------------------------------------------------------------------------
-<!--
+## Copyright:
+
 (c) Copyright 1984-2018, [Leo Broukhis, Simon Cooper, Landon Curt Noll][judges] - All rights reserved
 This work is licensed under a [Creative Commons Attribution-ShareAlike 3.0 Unported License][cc].
 
 [judges]: http://www.ioccc.org/judges.html
 [cc]: http://creativecommons.org/licenses/by-sa/3.0/
--->