This patch fixes a bug in guile-rsvg's build system, whereby the CFLAGS
and LDFLAGS for Guile would not be captured.

--- guile-rsvg-2.18.1/configure.ac	2015-08-31 22:30:30.578909480 +0200
+++ guile-rsvg-2.18.1/configure.ac	2015-08-31 22:32:15.071516084 +0200
@@ -39,6 +39,10 @@ AC_SUBST(WARN_CFLAGS)
 
 GUILE_PKG([2.2 2.0 1.8])
 
+dnl The above macro fails to set the 'GUILE_CFLAGS' and 'GUILE_LIBS'
+dnl substitution variables, hence this line.
+PKG_CHECK_MODULES(GUILE, guile-$GUILE_EFFECTIVE_VERSION)
+
 PKG_CHECK_MODULES(GUILE_CAIRO, guile-cairo >= 1.4.0)
 AC_SUBST(GUILE_CAIRO_LIBS)
 AC_SUBST(GUILE_CAIRO_CFLAGS)
class='form'><form method='get'>
<input type='hidden' name='id' value='15606d989669fda245c622a71254e3b09b07b5ac'/><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=15606d989669fda245c622a71254e3b09b07b5ac'>refs</a><a class='active' href='/guix/log/build-aux/check-final-inputs-self-contained.scm'>log</a><a href='/guix/tree/build-aux/check-final-inputs-self-contained.scm?id=15606d989669fda245c622a71254e3b09b07b5ac'>tree</a><a href='/guix/commit/build-aux/check-final-inputs-self-contained.scm?id=15606d989669fda245c622a71254e3b09b07b5ac'>commit</a><a href='/guix/diff/build-aux/check-final-inputs-self-contained.scm?id=15606d989669fda245c622a71254e3b09b07b5ac'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/build-aux/check-final-inputs-self-contained.scm'>
<input type='hidden' name='id' value='15606d989669fda245c622a71254e3b09b07b5ac'/><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=15606d989669fda245c622a71254e3b09b07b5ac'>root</a>/<a href='/guix/log/build-aux?id=15606d989669fda245c622a71254e3b09b07b5ac'>build-aux</a>/<a href='/guix/log/build-aux/check-final-inputs-self-contained.scm?id=15606d989669fda245c622a71254e3b09b07b5ac'>check-final-inputs-self-contained.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/build-aux/check-final-inputs-self-contained.scm?id=15606d989669fda245c622a71254e3b09b07b5ac&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2018-12-04 10:57:56 +0100'>2018-12-04</span></td><td><a href='/guix/commit/build-aux/check-final-inputs-self-contained.scm?id=0bc02becca1b4b0b3eddb7972567a75f0d464b72'>Remove most references to hydra.gnu.org.</a><span class='msg-avail'>...<span class='msg-tooltip'>* Makefile.am (assert-binaries-available): Don't mention hydra.gnu.org
in comment.
* build-aux/check-available-binaries.scm: Likewise.
* build-aux/check-final-inputs-self-contained.scm: Likewise.
* doc/guix.texi (SUBSTITUTE-SERVER): New variable.
Use it throughout instead of "mirror.hydra.gnu.org".
* doc/contributing.texi (Submitting Patches): Likewise.
* gnu/services/base.scm (hydra-key-authorization)
(guix-activation): Remove mentions of "hydra.gnu.org" in comments and
messages.
* gnu/system/install.scm (%installation-services): Likewise.
* guix/scripts/size.scm (guix-size): Likewise.
</span></span></td><td>Ludovic Courtès</td></tr>