Taken from https://bug1339931.bmoattachments.org/attachment.cgi?id=8837771.

# HG changeset patch
# Parent 4732a0e5d22bc7e5c1f1ace7a182d537d9cc2c6a
Add major version to shell and js-config filenames.
Author: Rico Tzschichholz <ricotz@ubuntu.com>
Forwarded: no
Last-Update: 2014-10-29

---
diff --git a/js/src/configure b/js/src/configure
--- a/js/src/configure
+++ b/js/src/configure
@@ -1696,8 +1696,13 @@
 MOZJS_PATCH_VERSION=`echo $MOZILLA_VERSION | sed "s|^[0-9]*\.[0-9]*[^0-9]*||"`
 IS_ALPHA=`echo $MOZILLA_VERSION | grep '[ab]'`
 
+if test -n "$JS_STANDALONE"; then
+JS_SHELL_NAME=js$MOZJS_MAJOR_VERSION
+JS_CONFIG_NAME=js$MOZJS_MAJOR_VERSION-config
+else
 JS_SHELL_NAME=js
 JS_CONFIG_NAME=js-config
+fi
 
 
 if test -n "$IS_ALPHA"; then

diff --git a/js/src/configure.in b/js/src/configure.in
--- a/js/src/configure.in
+++ b/js/src/configure.in
@@ -234,16 +234,13 @@ MOZJS_MINOR_VERSION=`echo $MOZILLA_VERSI
 MOZJS_PATCH_VERSION=`echo $MOZILLA_VERSION | sed "s|^[0-9]*\.[0-9]*[^0-9]*||"`
 IS_ALPHA=`echo $MOZILLA_VERSION | grep '[ab]'`
 
-dnl XXX in a temporary bid to avoid developer anger at renaming files
-dnl XXX before "js" symlinks exist, don't change names.
-dnl
-dnl if test -n "$JS_STANDALONE"; then
-dnl JS_SHELL_NAME=js$MOZJS_MAJOR_VERSION
-dnl JS_CONFIG_NAME=js$MOZJS_MAJOR_VERSION-config
-dnl else
+if test -n "$JS_STANDALONE"; then
+JS_SHELL_NAME=js$MOZJS_MAJOR_VERSION
+JS_CONFIG_NAME=js$MOZJS_MAJOR_VERSION-config
+else
 JS_SHELL_NAME=js
 JS_CONFIG_NAME=js-config
-dnl fi
+fi
 
 changequote([,])
 if test -n "$IS_ALPHA"; then

diff -r 80a9e64d75f5 js/src/Makefile.in
--- a/js/src/Makefile.in        Wed Jun 25 15:11:42 2014 +0200
+++ b/js/src/Makefile.in        Sat Jul 05 14:08:38 2014 +0200
@@ -273,6 +273,9 @@
 SCRIPTS = $(JS_CONFIG_NAME)
 SDK_BINARY = $(JS_CONFIG_NAME)
 
+$(JS_CONFIG_NAME): js-config
+	cp $^ $@
+
 $(JS_LIBRARY_NAME).pc: js.pc
 	cp $^ $@
 
input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/guix/log/?id=db58e326e5d7cee9e8e4dec3e2496c82c03adefc'>root</a>/<a href='/guix/log/gnu?id=db58e326e5d7cee9e8e4dec3e2496c82c03adefc'>gnu</a>/<a href='/guix/log/gnu/packages?id=db58e326e5d7cee9e8e4dec3e2496c82c03adefc'>packages</a>/<a href='/guix/log/gnu/packages/groff.scm?id=db58e326e5d7cee9e8e4dec3e2496c82c03adefc'>groff.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/packages/groff.scm?id=db58e326e5d7cee9e8e4dec3e2496c82c03adefc&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2019-01-17 10:07:07 +0100'>2019-01-17</span></td><td><a href='/guix/commit/gnu/packages/groff.scm?id=73b2ce87956b0d9168dcfa234128b91e0e41a4c7'>gnu: groff-minimal: Disable relocatability.</a><span class='msg-avail'>...</span></td><td>Danny Milosavljevic</td></tr>
<tr><td><span title='2019-01-16 18:31:27 +0200'>2019-01-16</span></td><td><a href='/guix/commit/gnu/packages/groff.scm?id=96733e941754759d4a1f45ef8fb05dc9ff6db7b3'>Revert "gnu: groff: Disable relocatability."</a><span class='msg-avail'>...</span></td><td>Efraim Flashner</td></tr>
<tr><td><span title='2019-01-16 15:15:30 +0100'>2019-01-16</span></td><td><a href='/guix/commit/gnu/packages/groff.scm?id=f57693e17c7905d2f11e46d04cb558fe0b0fc39b'>gnu: groff: Disable relocatability.</a><span class='msg-avail'>...</span></td><td>Danny Milosavljevic</td></tr>
<tr><td><span title='2018-05-06 15:47:20 +0200'>2018-05-06</span></td><td><a href='/guix/commit/gnu/packages/groff.scm?id=06fc895f29735d6cae482522ba433165611b55c1'>gnu: groff-minimal: Preserve 'preconv' executable.</a><span class='msg-avail'>...</span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2017-12-06 17:25:23 +0100'>2017-12-06</span></td><td><a href='/guix/commit/gnu/packages/groff.scm?id=2ced84fbaee2f224cf2ef493ef6b0dc9839a1b13'>gnu: groff-minimal: Inherit phases from groff.</a><span class='msg-avail'>...</span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2017-12-05 23:41:30 +0100'>2017-12-05</span></td><td><a href='/guix/commit/gnu/packages/groff.scm?id=77181815ae70cf573b6fa390a4400b718835aa8a'>Merge branch 'master' into core-updates</a></td><td>Marius Bakke</td></tr>
<tr><td><span title='2017-12-02 15:06:02 +0100'>2017-12-02</span></td><td><a href='/guix/commit/gnu/packages/groff.scm?id=3c97322a6e44cfb5aadf6dadfbed65170786a913'>gnu: Add groff-minimal.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2017-08-31 15:05:10 +0200'>2017-08-31</span></td><td><a href='/guix/commit/gnu/packages/groff.scm?id=e9e6d40b2292c4a3fbc86bee6a7146eaba59c075'>gnu: groff: Make build reproducible.</a><span class='msg-avail'>...</span></td><td>Danny Milosavljevic</td></tr>
<tr><td><span title='2017-07-10 12:37:03 +0200'>2017-07-10</span></td><td><a href='/guix/commit/gnu/packages/groff.scm?id=9146543f8dce997c194aea93bf4c7a7a4144c8c9'>gnu: groff: Remove timestamps.</a><span class='msg-avail'>...</span></td><td>Danny Milosavljevic</td></tr>
<tr><td><span title='2017-07-07 17:07:16 +0200'>2017-07-07</span></td><td><a href='/guix/commit/gnu/packages/groff.scm?id=0b6e4f82fcc906c431a575ab68183ed3c1eaa220'>gnu: groff: Remove dependency on netpbm.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2017-03-30 01:30:16 +0200'>2017-03-30</span></td><td><a href='/guix/commit/gnu/packages/groff.scm?id=6fd52309b8f52c9bb59fccffac53e029ce94b698'>gnu: Use HTTPS for almost all gnu.org HOME-PAGEs.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2016-12-25 22:02:39 +0100'>2016-12-25</span></td><td><a href='/guix/commit/gnu/packages/groff.scm?id=33ca5517316e68771f6195a1f7801e94a6c7bfe7'>gnu: Add roffit.</a><span class='msg-avail'>...</span></td><td>Ricardo Wurmus</td></tr>
<tr><td><span title='2015-02-05 23:40:55 +0100'>2015-02-05</span></td><td><a href='/guix/commit/gnu/packages/groff.scm?id=7d157c652cf90459dcce51c2c98985683e5359c4'>gnu: groff: Add "doc" output.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2014-12-16 11:16:54 -0500'>2014-12-16</span></td><td><a href='/guix/commit/gnu/packages/groff.scm?id=a142e38e9dfb56761bd614a28022f9c1711bd8b7'>gnu: groff: Disable parallel builds.</a><span class='msg-avail'>...</span></td><td>Mark H Weaver</td></tr>
<tr><td><span title='2014-12-16 03:28:06 -0500'>2014-12-16</span></td><td><a href='/guix/commit/gnu/packages/groff.scm?id=dec7ab595373ca59ae57547475fb2a4844ff5d8c'>gnu: groff: Update to 1.22.3.</a><span class='msg-avail'>...</span></td><td>Mark H Weaver</td></tr>
<tr><td><span title='2013-12-15 22:31:19 +0100'>2013-12-15</span></td><td><a href='/guix/commit/gnu/packages/groff.scm?id=c4c4cc05979f2a2d0212963c5fe1b940d63a0958'>gnu: Move numerous "inputs" which should be "native-inputs".</a><span class='msg-avail'>...</span></td><td>John Darrington</td></tr>
<tr><td><span title='2013-12-01 22:33:23 +0100'>2013-12-01</span></td><td><a href='/guix/commit/gnu/packages/groff.scm?id=79c311b81cd8b12075f4c8028a65787481ee40c5'>gnu: Synchronize descriptions with 'gnumaint'.</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2013-10-09 16:14:23 +0200'>2013-10-09</span></td><td><a href='/guix/commit/gnu/packages/groff.scm?id=a22dc0c49aed0babe16ef92ae24847b343b7eb02'>Synchronize package descriptions with the Womb.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>