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='2024-06-17 08:36:12 +0300'>2024-06-17</span></td><td><a href='/guix/commit/gnu/tests/virtualization.scm?id=7a70532dd8a6d5b58f6a57220aa51e3cdc20ec88'>tests: libvirt-test: Give the libvirt service time to start.</a><span class='msg-avail'>...</span></td><td>Efraim Flashner</td></tr>