Fix 1984/decot alt build

In the case of this entry, it is so screwy that having the CFLAGS
conflicts with the -traditional-cpp option in some systems. Thus the alt
rule has ONLY the -traditional-cpp option. The thanks file notes this
oddity and how to view the diff between the original and the alternate
code.

Also the bugs file was changed to be worded like the README.md file.

The index.html file was improved for the fix to the Makefile (for the
alt build) and it also links to the specific lines in the code on GitHub
(see the index.html file how it talks about specific lines in the
judges' remarks).

1984/decot/.gitignore

@@ -2,6 +2,7 @@
 # sort with: ../../bin/sgi.sh
 *.dSYM
 decot
+decot.alt
 decot.orig
 indent
 indent.c

1984/decot/Makefile

@@ -144,9 +144,11 @@ ${PROG}: ${PROG}.c
 alt: data ${ALT_TARGET}
 	@${TRUE}
 
-
+# We CANNOT have the ${CFLAGS} here as -traditional-cpp conflicts with them,
+# causing a compilation error in at least some versions of gcc.
 ${PROG}.alt: ${PROG}.alt.c
-	${CC} ${CFLAGS} -traditional-cpp $< -o $@ ${LDFLAGS}
+	${CC} -traditional-cpp $< -o $@ ${LDFLAGS}
+
 # data files
 #
 data: ${DATA}

1984/decot/README.md

@@ -40,6 +40,10 @@ can use this version.
     make alt
 ```
 
+Notice that one **CANNOT** have the usual `${CFLAGS}` along with the
+`-traditional-cpp` in all systems. This is why the Makefile only has the latter
+option as the others conflict with it.
+
 
 ### Alternate use:
 
@@ -71,14 +75,19 @@ to:
     for(signal=0;*k *x * __FILE__ *i;) do {
 ```
 
-To see what we mean look at the [original source file](%%REPO_URL%%/1984/decot/decot.orig.c). The
-[alternate code](%%REPO_URL%%/1984/decot/decot.alt.c) is the version that has this modification. The
+To see what we mean look at the [original source
+file](%%REPO_URL%%/1984/decot/decot.orig.c) at [line
+15](%%REPO_URL%%/1984/decot/decot.orig.c#L15) which has the way it once was. The
+[alternate code](%%REPO_URL%%/1984/decot/decot.alt.c) is the version that has
+this modification but at [line 16](%%REPO_URL%%/1984/decot/decot.alt.c#L16). The
 fixed version has instead:
 
 ``` <!---c-->
     for(signal=0;*k *= * __FILE__ *i;) do {
 ```
 
+plus a line above it that had to be added.
+
 
 ## Author's remarks:
 

1984/decot/index.html

@@ -418,6 +418,9 @@ The original code was fixed in 2023 to not require this.</p>
 can use this version.</p>
 <h3 id="alternate-build">Alternate build:</h3>
 <pre><code>    make alt</code></pre>
+<p>Notice that one <strong>CANNOT</strong> have the usual <code>${CFLAGS}</code> along with the
+<code>-traditional-cpp</code> in all systems. This is why the Makefile only has the latter
+option as the others conflict with it.</p>
 <h3 id="alternate-use">Alternate use:</h3>
 <pre><code>    ./decot.alt</code></pre>
 <h2 id="judges-remarks">Judges’ remarks:</h2>
@@ -430,10 +433,14 @@ changed it from:</p>
 <pre><code>    for(signal=0;*k * x * __FILE__ *i;) do {</code></pre>
 <p>to:</p>
 <pre><code>    for(signal=0;*k *x * __FILE__ *i;) do {</code></pre>
-<p>To see what we mean look at the <a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1984/decot/decot.orig.c">original source file</a>. The
-<a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1984/decot/decot.alt.c">alternate code</a> is the version that has this modification. The
+<p>To see what we mean look at the <a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1984/decot/decot.orig.c">original source
+file</a> at <a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1984/decot/decot.orig.c#L15">line
+15</a> which has the way it once was. The
+<a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1984/decot/decot.alt.c">alternate code</a> is the version that has
+this modification but at <a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1984/decot/decot.alt.c#L16">line 16</a>. The
 fixed version has instead:</p>
 <pre><code>    for(signal=0;*k *= * __FILE__ *i;) do {</code></pre>
+<p>plus a line above it that had to be added.</p>
 <h2 id="authors-remarks">Author’s remarks:</h2>
 <p>No remarks were provided by the author.</p>
 <!--