Fixes a fatal constness error with g++ 4.8.2.
--- aegis-4.24/common/ac/string/memmem.cc	2008-03-14 07:19:27.000000000 +0100
+++ aegis-4.24/common/ac/string/memmem.cc	2014-01-26 11:17:58.000000000 +0100
@@ -182,7 +182,7 @@
 
     // Use optimizations in memchr when possible.
     if (needle_len == 1)
-        return memchr(haystack, *needle, haystack_len);
+        return (void *) memchr(haystack, *needle, haystack_len);
 
     // Minimizing the worst-case complexity:
     // Let n = haystack_len, m = needle_len.
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<tr><td><span title='2021-09-08 18:03:50 +0200'>2021-09-08</span></td><td><a href='/guix/commit/tests/transformations.scm?id=16ef7b4938b14e68f8ca7504c9614f84530572ed'>transformations: Git tags and 'git describe' style IDs are used as version.</a><span class='msg-avail'>...</span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2021-08-11 16:35:28 +0200'>2021-08-11</span></td><td><a href='/guix/commit/tests/transformations.scm?id=373e7ac4f9d510d3a58fcdbe9ec2d67eb426336b'>transformations: 'with-patch' works on non-origin sources.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2021-03-05 12:49:27 +0100'>2021-03-05</span></td><td><a href='/guix/commit/tests/transformations.scm?id=90ea8b16eb519a88d8f739fea5a416c0b99de19f'>profiles: 'package-&gt;manifest-entry' preserves transformations by default.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2021-01-19 17:45:39 +0100'>2021-01-19</span></td><td><a href='/guix/commit/tests/transformations.scm?id=9ab817b2a4601b4a6755983590ed7d93ebdc8d09'>transformations: Add '--with-latest'.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2020-12-27 17:23:40 +0100'>2020-12-27</span></td><td><a href='/guix/commit/tests/transformations.scm?id=e38d90d497e19e00263fa28961c688a433154386'>transformations: Add '--with-patch'.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2020-12-21 17:47:35 +0100'>2020-12-21</span></td><td><a href='/guix/commit/tests/transformations.scm?id=527551287011888c2ba13fe92e636300ce625430'>tests: Check the effect of '--without-tests' on implicit inputs.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2020-10-31 23:16:43 +0100'>2020-10-31</span></td><td><a href='/guix/commit/tests/transformations.scm?id=f68b3ba12dc7532dddde7dc63afb81a8492c661e'>guix build: Move transformation options to (guix transformations).</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>