Taken from https://bug1339931.bmoattachments.org/attachment.cgi?id=8837770.

Add major version to pkg-config filename.
Author: Rico Tzschichholz <ricotz@ubuntu.com>
Forwarded: no
Last-Update: 2015-05-04

Index: b/js/src/Makefile.in
===================================================================
--- a/js/src/Makefile.in
+++ b/js/src/Makefile.in
@@ -214,10 +214,10 @@
 $(JS_CONFIG_NAME): js-config
    cp $^ $@
 
-$(LIBRARY_NAME).pc: js.pc
+$(JS_LIBRARY_NAME).pc: js.pc
 	cp $^ $@
 
-install:: $(LIBRARY_NAME).pc
+install:: $(JS_LIBRARY_NAME).pc
 	$(SYSINSTALL) $^ $(DESTDIR)$(libdir)/pkgconfig
 
 install:: js-config.h
7b6adae0abdb9aa5b9995ccf89d38b2314d7'/><select name='h' onchange='this.form.submit();'>
<option value='koszko' selected='selected'>koszko</option>
<option value='koszko-scripts'>koszko-scripts</option>
</select> <input type='submit' value='switch'/></form></td></tr>
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<div class='path'>path: <a href='/guix/log/?id=e2227b6adae0abdb9aa5b9995ccf89d38b2314d7'>root</a>/<a href='/guix/log/tests?id=e2227b6adae0abdb9aa5b9995ccf89d38b2314d7'>tests</a>/<a href='/guix/log/tests/guix-hash.sh?id=e2227b6adae0abdb9aa5b9995ccf89d38b2314d7'>guix-hash.sh</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/tests/guix-hash.sh?id=e2227b6adae0abdb9aa5b9995ccf89d38b2314d7&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2016-10-28 22:30:17 +0200'>2016-10-28</span></td><td><a href='/guix/commit/tests/guix-hash.sh?id=343dc11702bf71876795b5d158cad860deca53a1'>guix hash: Interpret '-' as standard input.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2016-09-07 12:00:35 +0200'>2016-09-07</span></td><td><a href='/guix/commit/tests/guix-hash.sh?id=392a4e122350367c4b4ac331db5ec28360c7f38c'>guix hash: Add --exclude-vcs option.</a><span class='msg-avail'>...</span></td><td>Jan Nieuwenhuizen</td></tr>