diff --git a/1986/wall/.entry.json b/1986/wall/.entry.json
index 2d2e86a25..ca1f6d177 100644
--- a/1986/wall/.entry.json
+++ b/1986/wall/.entry.json
@@ -25,6 +25,14 @@
 	    "display_via_github" : true,
 	    "entry_text" : "entry Makefile"
 	},
+	{
+	    "file_path" : "wall.alt.c",
+	    "inventory_order" : 40,
+	    "OK_to_edit" : true,
+	    "display_as" : "c",
+	    "display_via_github" : true,
+	    "entry_text" : "alternate source code"
+	},
 	{
 	    "file_path" : "wall.orig.c",
 	    "inventory_order" : 50,
diff --git a/1986/wall/.gitignore b/1986/wall/.gitignore
index 059a8223d..97c6c8045 100644
--- a/1986/wall/.gitignore
+++ b/1986/wall/.gitignore
@@ -6,4 +6,5 @@ indent.c
 indent.o
 prog.orig
 wall
+wall.alt
 wall.orig
diff --git a/1986/wall/Makefile b/1986/wall/Makefile
index eab2e08ed..57efcdace 100644
--- a/1986/wall/Makefile
+++ b/1986/wall/Makefile
@@ -121,8 +121,8 @@ OBJ= ${PROG}.o
 DATA=
 TARGET= ${PROG}
 #
-ALT_OBJ=
-ALT_TARGET=
+ALT_OBJ= wall.alt.o
+ALT_TARGET= ${PROG}.alt
 
 #################
 # build the entry
@@ -144,6 +144,9 @@ ${PROG}: ${PROG}.c
 alt: ${ALT_TARGET}
 	@${TRUE}
 
+${PROG}.alt: ${PROG}.alt.c
+	${CC} ${CFLAGS} -traditional-cpp $< -o $@ ${LDFLAGS}
+
 # data files
 #
 data: ${DATA}
diff --git a/1986/wall/README.md b/1986/wall/README.md
index 6846abf8e..1f423df72 100644
--- a/1986/wall/README.md
+++ b/1986/wall/README.md
@@ -4,6 +4,9 @@
     make all
 ```
 
+There is an alternate version for those with a compiler that support
+`-traditional-cpp`. See [Alternate code](#alternate-code) below.
+
 
 ## To use:
 
@@ -12,6 +15,23 @@
 ```
 
 
+## Alternate code:
+
+This version is the original but which can be used if you have a compiler that
+supports the `-traditional-cpp` option.
+
+
+### Alternate build:
+
+``` <!--sh-->
+	make alt
+```
+
+### Alternate use:
+
+Use `wall.alt` as you would `wall` above.
+
+
 ## Judges' remarks:
 
 The original version did not have a ';' character in the first line.
diff --git a/1986/wall/index.html b/1986/wall/index.html
index 2137c1079..559c63dd9 100644
--- a/1986/wall/index.html
+++ b/1986/wall/index.html
@@ -403,8 +403,17 @@ Location: <a href="../../location.html#US">US</a> - <em>United States of America
 <!-- BEFORE: 1st line of markdown file: 1986/wall/README.md -->
 <h2 id="to-build">To build:</h2>
 <pre><code>    make all</code></pre>
+<p>There is an alternate version for those with a compiler that support
+<code>-traditional-cpp</code>. See <a href="#alternate-code">Alternate code</a> below.</p>
 <h2 id="to-use">To use:</h2>
 <pre><code>    ./wall</code></pre>
+<h2 id="alternate-code">Alternate code:</h2>
+<p>This version is the original but which can be used if you have a compiler that
+supports the <code>-traditional-cpp</code> option.</p>
+<h3 id="alternate-build">Alternate build:</h3>
+<pre class="&lt;!--sh--&gt;"><code>        make alt</code></pre>
+<h3 id="alternate-use">Alternate use:</h3>
+<p>Use <code>wall.alt</code> as you would <code>wall</code> above.</p>
 <h2 id="judges-remarks">Judges’ remarks:</h2>
 <p>The original version did not have a ‘;’ character in the first line.
 This caused a number of System V C pre-preprocessors to gripe about a
@@ -444,6 +453,7 @@ compiler documents the program.</p>
 <ul>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1986/wall/wall.c">wall.c</a> - entry source code</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1986/wall/Makefile">Makefile</a> - entry Makefile</li>
+<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1986/wall/wall.alt.c">wall.alt.c</a> - alternate source code</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1986/wall/wall.orig.c">wall.orig.c</a> - original source code</li>
 </ul>
 <h2 id="secondary-files">Secondary files</h2>
diff --git a/1986/wall/wall.alt.c b/1986/wall/wall.alt.c
new file mode 100644
index 000000000..836cb51d5
--- /dev/null
+++ b/1986/wall/wall.alt.c
@@ -0,0 +1,78 @@
+#define _c(C)_ (C)&('|'+3):c_()(C)>>('\n'-3) __; /**/
+#define C char*
+#define keyboard ",,B3-u;.(&*5., /(b*(1\036!a%\031m,,,,,\r\n"
+#define main(o,oo)oo(o){
+#define _ ;case
+C
+#define c_(cc)c cc=
+#define C_(sand)_O(sand)witch
+o=keyboard;
+#define __ ;break;
+C
+ccc(
+cc)
+C
+cc;
+{
+C
+cccc=
+cc;int
+#ifndef lint
+#define keyboard "dijs QH.soav Vdtnsaoh DmfpaksoQz;kkt oa, -dijs"
+#endif
+c;
+main(;c_(=(*cc);*cc++)c,for);
+#define _O(s)s
+main(0xb+(c>>5),C_(s))
+_'\v'
+:__ _'\f':
+main(c,C_(s));
+_c(8098)_c(6055)_c(14779)_c(10682)
+#define O_(O)_O(O)stem(ccc(
+_c(15276)_c(11196)_c(15150)
+#define _C ;return
+_c(11070)_c(15663)_c(11583)
+}
+__
+default
+:c_(+)o[c&__LINE__-007];
+main(c_(-)'-'-1,C_(s))_
+0214
+:_
+0216
+:c_(+)025 _
+0207
+:c_(-)4 _
+0233
+:c_(+)' '-1;
+}}c_(&)'z'+5;
+}_C cccc;
+}main(,cc)
+C
+#define O write(1,
+c="O";
+O_(sy) keyboard));
+main(;;,for);
+read(0,
+c,1);*
+c_(&)'~'+1
+;O ccc(
+c),
+'\0');
+main(*c,
+C_(s));_
+4
+:O_(sy)";kkt -oa, dijszdijs QQ"))_C
+_
+13
+:O o+' ',
+3
+)
+#undef main
+__ _ 127:O"\b \b",3)__
+default
+:O
+c,1)
+__}}}main(){
+cc();
+}
diff --git a/tmp/manifest.csv b/tmp/manifest.csv
index 7f9398779..42281c11e 100644
--- a/tmp/manifest.csv
+++ b/tmp/manifest.csv
@@ -177,6 +177,7 @@
 1986,stein,index.html,4294967295,false,html,false,this web page
 1986,wall,wall.c,20,true,c,true,entry source code
 1986,wall,Makefile,30,true,makefile,true,entry Makefile
+1986,wall,wall.alt.c,40,true,c,true,alternate source code
 1986,wall,wall.orig.c,50,true,c,true,original source code
 1986,wall,1986_wall.tar.bz2,1415926535,false,tbz2,false,download entry tarball
 1986,wall,README.md,4000000000,true,markdown,true,markdown source for this web page
diff --git a/tmp/manifest.numbers b/tmp/manifest.numbers
index 17b41672e..35c9d12a8 100644
Binary files a/tmp/manifest.numbers and b/tmp/manifest.numbers differ
diff --git a/tmp/path_list.found.txt b/tmp/path_list.found.txt
index 5ad2dbe1f..4168dfcb4 100644
--- a/tmp/path_list.found.txt
+++ b/tmp/path_list.found.txt
@@ -181,6 +181,7 @@
 1986/wall/Makefile
 1986/wall/README.md
 1986/wall/index.html
+1986/wall/wall.alt.c
 1986/wall/wall.c
 1986/wall/wall.orig.c
 1987/biggar/.entry.json
diff --git a/tmp/path_list.manifest.txt b/tmp/path_list.manifest.txt
index 5ad2dbe1f..4168dfcb4 100644
--- a/tmp/path_list.manifest.txt
+++ b/tmp/path_list.manifest.txt
@@ -181,6 +181,7 @@
 1986/wall/Makefile
 1986/wall/README.md
 1986/wall/index.html
+1986/wall/wall.alt.c
 1986/wall/wall.c
 1986/wall/wall.orig.c
 1987/biggar/.entry.json
diff --git a/tmp/path_list.required.txt b/tmp/path_list.required.txt
index b065419ce..585de2283 100644
--- a/tmp/path_list.required.txt
+++ b/tmp/path_list.required.txt
@@ -112,6 +112,7 @@
 1986/wall/.gitignore
 1986/wall/Makefile
 1986/wall/README.md
+1986/wall/wall.alt.c
 1986/wall/wall.c
 1986/wall/wall.orig.c
 1987/biggar/.entry.json