Patch borrowed from Arch Linux. Allows compiling bdb 5.3 and earlier with GCC newer than 7.

--- src/dbinc/atomic.h	2013-03-12 14:07:22.000000000 -0400
+++ src/dbinc/atomic.h.change	2013-03-12 14:06:35.000000000 -0400
@@ -144,7 +144,7 @@
 #define	atomic_inc(env, p)	__atomic_inc(p)
 #define	atomic_dec(env, p)	__atomic_dec(p)
 #define	atomic_compare_exchange(env, p, o, n)	\
-	__atomic_compare_exchange((p), (o), (n))
+	__atomic_compare_exchange_db((p), (o), (n))
 static inline int __atomic_inc(db_atomic_t *p)
 {
 	int	temp;
@@ -176,7 +176,7 @@
  * http://gcc.gnu.org/onlinedocs/gcc-4.1.0/gcc/Atomic-Builtins.html
  * which configure could be changed to use.
  */
-static inline int __atomic_compare_exchange(
+static inline int __atomic_compare_exchange_db(
 	db_atomic_t *p, atomic_value_t oldval, atomic_value_t newval)
 {
 	atomic_value_t was;
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<tr><td><span title='2021-05-28 23:04:44 +0200'>2021-05-28</span></td><td><a href='/guix/commit/tests/gnu-maintenance.scm?id=d7c356edb9719f1e236ee926c0288f914076481a'>gnu-maintenance: 'release-file?' accepts 'v' prefix as in "PKG-v1.2.tgz".</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/gnu-maintenance.scm (%tarball-rx, %package-name-rx): Accept 'v'
and 'V' prefixes.  Accept ".tgz" extension.
* tests/gnu-maintenance.scm ("release-file?"): Add test.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2021-04-05 12:03:09 +0200'>2021-04-05</span></td><td><a href='/guix/commit/tests/gnu-maintenance.scm?id=ceeea60bbc1e2be6a86cef208fcd80eb61c92934'>gnu-maintenance: Recognize more source tarball naming schemes.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/gnu-maintenance.scm (%package-name-rx): Add ".src" and ".orig"
suffixes.
* tests/gnu-maintenance.scm ("release-file?"): Add mpg321 and bvi
examples.
("tarball-&gt;version"): New test.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2021-03-29 23:33:40 +0200'>2021-03-29</span></td><td><a href='/guix/commit/tests/gnu-maintenance.scm?id=1575da60628cf2594cd7b1ab0812ec4c50ac5092'>gnu-maintenance: Recognize "-source" tarball suffix.</a><span class='msg-avail'>...<span class='msg-tooltip'>Fixes &lt;https://bugs.gnu.org/47398&gt;.
Reported by Léo Le Bouter &lt;lle-bout@zaclys.net&gt;.

* guix/gnu-maintenance.scm (%tarball-rx): Add "-[Ss]ource" suffix.
* tests/gnu-maintenance.scm ("release-file?"): Add exiv2 example.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2021-03-20 22:29:14 +0100'>2021-03-20</span></td><td><a href='/guix/commit/tests/gnu-maintenance.scm?id=1710e8cb59e2ef6f1e0eb19235b6a4f1b8158bc4'>gnu-maintenance: Accept underscores as package/version separators.</a><span class='msg-avail'>...<span class='msg-tooltip'>Fixes &lt;https://bugs.gnu.org/47256&gt;.
Reported by Léo Le Bouter &lt;lle-bout@zaclys.net&gt;.

* guix/gnu-maintenance.scm (%tarball-rx, %package-name-rx): Accept
underscore as the package/version separator in tarball names.
* tests/gnu-maintenance.scm ("release-file?"): Add "mediainfo" test.
</span></span></td><td>Ludovic Courtès</td></tr>