GCC 4.9 and later have libvtv and, just like libstdc++ (see
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=32354), it doesn't
have $libdir in its RUNPATH, but it NEEDs libgcc_s.  This patch
fixes that.

--- gcc-5.1.0/libvtv/Makefile.in	2014-10-30 09:28:58.000000000 +0100
+++ gcc-5.1.0/libvtv/Makefile.in	2015-04-30 09:51:04.161129705 +0200
@@ -15,6 +15,7 @@
 
 @SET_MAKE@
 
+libvtv_la_LDFLAGS = -Wl,-rpath=$(libdir)
 
 VPATH = @srcdir@
 pkgdatadir = $(datadir)/@PACKAGE@
atic/cgit.png' alt='cgit logo'/></a></td>
<td class='main'><a href='/'>index</a> : <a href='/guix/'>guix</a></td><td class='form'><form method='get'>
<input type='hidden' name='id' value='c017acec3421d10ceceffbd68312083645562ce5'/><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>
<tr><td class='sub'>Wojtek's customized Guix</td><td class='sub right'></td></tr></table>
<table class='tabs'><tr><td>
<a href='/guix/about/'>about</a><a href='/guix/'>summary</a><a href='/guix/refs/?id=c017acec3421d10ceceffbd68312083645562ce5'>refs</a><a class='active' href='/guix/log/doc/images/coreutils-size-map.png'>log</a><a href='/guix/tree/doc/images/coreutils-size-map.png?id=c017acec3421d10ceceffbd68312083645562ce5'>tree</a><a href='/guix/commit/doc/images/coreutils-size-map.png?id=c017acec3421d10ceceffbd68312083645562ce5'>commit</a><a href='/guix/diff/doc/images/coreutils-size-map.png?id=c017acec3421d10ceceffbd68312083645562ce5'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/doc/images/coreutils-size-map.png'>
<input type='hidden' name='id' value='c017acec3421d10ceceffbd68312083645562ce5'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<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=c017acec3421d10ceceffbd68312083645562ce5'>root</a>/<a href='/guix/log/doc?id=c017acec3421d10ceceffbd68312083645562ce5'>doc</a>/<a href='/guix/log/doc/images?id=c017acec3421d10ceceffbd68312083645562ce5'>images</a>/<a href='/guix/log/doc/images/coreutils-size-map.png?id=c017acec3421d10ceceffbd68312083645562ce5'>coreutils-size-map.png</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/doc/images/coreutils-size-map.png?id=c017acec3421d10ceceffbd68312083645562ce5&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>