diff --git a/2000/thadgavin/Makefile b/2000/thadgavin/Makefile
index 8f3cc8cba..cfaabfdcb 100644
--- a/2000/thadgavin/Makefile
+++ b/2000/thadgavin/Makefile
@@ -101,7 +101,7 @@ CINCLUDE=
 #CINCLUDE= -include stdlib.h
 #CINCLUDE= -include stdio.h
 #CINCLUDE= -include stdlib.h -include stdio.h
-#CINCLUDE= -I ${X11_INCDIR}
+#CINCLUDE= -I ${X11_INCDIR} -I ${X11_INCDIR}/X11
 #CINCLUDE= `${SDL2_CONFIG} --cflags`
 
 # Optimization
@@ -124,7 +124,7 @@ CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 # Libraries needed to build
 #
 #LIBS=
-LIBS= -lm -lncurses
+LIBS= -lncurses
 #LIBS= -L ${X11_LIBDIR} -lX11
 #LIBS= `${SDL2_CONFIG} --libs`
 
diff --git a/2000/thadgavin/README.md b/2000/thadgavin/README.md
index 23ac52999..208455d70 100644
--- a/2000/thadgavin/README.md
+++ b/2000/thadgavin/README.md
@@ -1,68 +1,78 @@
 # Most Portable Output:
 
-    Thaddaeus Frogley
-    Creature Labs
-    164 Hornbeams,
-    Harlow, Essex,
-    UK
+Thaddaeus Frogley
+Creature Labs
+164 Hornbeams,
+Harlow, Essex,
+UK
 
-    Gavin Buttimore
-    Creature Labs
-    9 Elizabeth Way,
-    Cambridge,
-    UK, CB4 1DE
+Gavin Buttimore
+Creature Labs
+9 Elizabeth Way,
+Cambridge,
+UK, CB4 1DE
 
-## To build:
+# To build:
 
-        make all
+```sh
+make
+```
 
-### To run
+### To run:
 
-	./thadgavin
+```sh
+./thadgavin
+```
 
-## Judges' comments
+### Try:
 
-    This entry is a nice play by the rules. It can use curses, if the
-    SDL graphic library is not present, and is quite good at that,
-    but the colors used in graphic mode (16 bit depth) are unfortunately
-    less than dazzling. We could not test this entry in DOS mode.
+```sh
+echo "Do or do not. There is no try."
+```
 
-## Author's comments
+## Judges' comments:
 
-    To run under DOS:
+This entry is a nice play by the rules. It can use curses, if the
+SDL graphic library is not present, and is quite good at that,
+but the colors used in graphic mode (16 bit depth) are unfortunately
+less than dazzling. We could not test this entry in DOS mode.
 
-        Compile using DJGPP as follows:
+## Author's comments:
 
-        gcc thadgavin.c -o thadgavin.exe -Wall -lm -O6 -mpentium -fomit-frame-pointer
+To run under DOS:
+
+    Compile using DJGPP as follows:
+
+    gcc thadgavin.c -o thadgavin.exe -Wall -lm -O6 -mpentium -fomit-frame-pointer
 -ffast-math
 
-    To run under Windows, X-Windows or MacOS using the
-    Simple DirectMedia Layer:
+To run under Windows, X-Windows or MacOS using the
+Simple DirectMedia Layer:
 
-        For example:
+    For example:
 
-        gcc -O6 -lpthread -g -o thadgavin thadgavin.c -lSDL -DSDL -lm
+    gcc -O6 -lpthread -g -o thadgavin thadgavin.c -lSDL -DSDL -lm
 
 
-    In gcc you may get the following warning:
+In gcc you may get the following warning:
 
-	prog.c:46: warning: passing arg 2 of `SDL_SetColors' from incompatible
-	pointer type
+    prog.c:46: warning: passing arg 2 of `SDL_SetColors' from incompatible
+    pointer type
 
-    In Microsoft Visual Studio you may get warnings as follows:
+In Microsoft Visual Studio you may get warnings as follows:
 
-	prog.c(46) : warning C4133: 'function' : incompatible types - from 'unsigned
-	char *' to 'struct SDL_Color *'
-	prog.c(63) : warning C4026: function declared with formal parameter list
-	prog.c(77) : warning C4244: '=' : conversion from 'double ' to 'unsigned
-	char ', possible loss of data
+    prog.c(46) : warning C4133: 'function' : incompatible types - from 'unsigned
+    char *' to 'struct SDL_Color *'
+    prog.c(63) : warning C4026: function declared with formal parameter list
+    prog.c(77) : warning C4244: '=' : conversion from 'double ' to 'unsigned
+    char ', possible loss of data
 
 
-    But don't worry, this is completely normal.
+But don't worry, this is completely normal.
 
-    Recommended dosage:
+Recommended dosage:
 
-	At least 3 minutes taken 3 times a day when tired.
+    At least 3 minutes taken 3 times a day when tired.
 
-	Do not exceed 3 times recommended dose.  May cause
-	sickness, dizziness, nausea.
+    Do not exceed 3 times recommended dose.  May cause
+    sickness, dizziness, nausea.