Improve how to reconfigure coords in 2014/deak

The Makefile now has variables so that one can do something like

    make X1=-1 Y2=-1 clobber alt

or whatever, with the variables X1, X2, Y1 and Y2 set to what the author
originally had it as.

The alt code still has #ifndef..#endif so that one can (if they want to
be silly) compile it without make(1).

2014/deak/Makefile

@@ -137,6 +137,16 @@ ${PROG}: ${PROG}.c
 alt: data ${ALT_TARGET}
 	@${TRUE}
 
+# Variables to redefine the coordinates in the alt version
+#
+X1= -2
+X2= 1
+Y1= -1.3
+Y2= 1.3
+
+${PROG}.alt: ${PROG}.alt.c
+	${CC} ${CFLAGS} -DX1=${X1} -DX2=${X2} -DY1=${Y1} -DY2=${Y2} $< -o $@ ${LDFLAGS}
+ 
 # data files
 #
 data: ${DATA}

2014/deak/README.md

@@ -57,6 +57,12 @@ You may pick and choose which ones to redefine.
 Use `prog.alt` as you would `prog`.
 
 
+### Alternate try:
+
+```sh
+./try.alt.sh
+```
+
 ## Judges' remarks:
 
 We consider this entry a tribute to all "Abuse of the C preprocessor"

2014/deak/try.alt.sh

@@ -0,0 +1,49 @@
+#!/usr/bin/env bash
+#
+# try.alt.sh - demonstrate IOCCC winner 2014/deak alt code
+#
+
+# make sure CC is set so that when we do make CC="$CC" it isn't empty. Doing it
+# this way allows us to have the user specify a different compiler in an easy
+# way.
+if [[ -z "$CC" ]]; then
+    CC="cc"
+fi
+
+# compile the alt code with various parameters and run it to show different
+# output
+
+read -r -n 1 -p "Press any key to change X1 to 2, X2 to -1 and Y1 to -2.3: "
+echo 1>&2
+make -B X1=2 X2=-1 Y1=-2.3 alt >/dev/null || exit
+read -r -n 1 -p "Press any key to continue (space = next page, q = quit): "
+echo 1>&2
+./prog.alt | less -EXF
+
+read -r -n 1 -p "Press any key to change X1 to 3, X2 to -2 and Y1 to -3.3: "
+echo 1>&2
+make -B X1=3 X2=-2 Y1=-3.3 alt >/dev/null || exit
+read -r -n 1 -p "Press any key to continue (space = next page, q = quit): "
+echo 1>&2
+./prog.alt | less -EXF
+
+read -r -n 1 -p "Press any key to change X1 to 1, X2 to -1 and Y1 to -0.3: "
+echo 1>&2
+make -B X1=1 X2=-1 Y1=-0.3 alt >/dev/null || exit
+read -r -n 1 -p "Press any key to continue (space = next page, q = quit): "
+echo 1>&2
+./prog.alt | less -EXF
+
+read -r -n 1 -p "Press any key to change X1 to 1, X2 to -1, Y1 to -0.3 and Y2 to -1.3: "
+echo 1>&2
+make -B X1=1 X2=-1 Y1=-0.3 Y2=-1.3 alt >/dev/null || exit
+read -r -n 1 -p "Press any key to continue (space = next page, q = quit): "
+echo 1>&2
+./prog.alt | less -EXF
+
+read -r -n 1 -p "Press any key to try the original configuration: "
+echo 1>&2
+make clobber alt >/dev/null || exit 1
+read -r -n 1 -p "Press any key to continue (space = next page, q = quit): "
+echo 1>&2
+./prog.alt

thanks-for-help.md

@@ -3682,10 +3682,10 @@ details).
 
 ## <a name="2014_deak"></a>[2014/deak](/2014/deak/prog.c) ([README.md](/2014/deak/README.md))
 
-[Cody](#cody) added [alt code](/2014/deak/README.md#alternate-code) that lets one
-reconfigure the coordinates but instead of being a modified version of the entry
-it is the version the author provided which would be what the program would look
-like if, as the author put it:
+[Cody](#cody) added [alt code](/2014/deak/README.md#alternate-code) that lets
+one (via the Makefile) reconfigure the coordinates but instead of being a
+modified version of the entry it is the version the author provided which would
+be what the program would look like if, as the author put it:
 
 > The usage of recognizable elements from the C programming language in the
 application source code is intentionally kept to a bare minimum.
@@ -3697,6 +3697,8 @@ This alt version did not originally compile because a value was left off the
 that was fixed and it also has `#include <stdio.h>` for `putchar(3)`. The
 `#ifndef..#define..#endif` was not part of the original alt code, of course.
 
+Cody also added the [try.alt.sh](/2014/deak/try.alt.sh) script.
+
 
 ## <a name="2014_endoh1"></a>[2014/endoh1](/2014/endoh1/prog.c) ([README.md](/2014/endoh1/README.md]))