Adjust libsanitizer to ABI change in glibc 2.31.

Adapted to 3.x from this upstream commit:
https://github.com/llvm/llvm-project/commit/947f9692440836dcb8d88b74b69dd379d85974ce

--- a/lib/sanitizer_common/saniniitizer_platform_limits_posix.h.orig	2020-08-11 16:01:32.494882282 +0200 #
+++ b/lib/sanitizer_common/sanitizer_platform_limits_posix.h	2020-08-11 16:32:49.711383554 +0200
@@ -176,8 +176,7 @@
     unsigned long __unused1;
     unsigned long __unused2;
 #else
-    unsigned short mode;
-    unsigned short __pad1;
+    unsigned int mode;
     unsigned short __seq;
     unsigned short __pad2;
 #if defined(__x86_64__) && !defined(_LP64)
--- a/lib/sanitizer_common/sanitizer_platform_limits_posix.cc	2020-08-11 16:01:07.926821829 +0200
+++ b/lib/sanitizer_common/sanitizer_platform_limits_posix.cc.orig	2020-08-11 16:01:03.698811421 +0200
@@ -1056,7 +1056,9 @@
 CHECK_SIZE_AND_OFFSET(ipc_perm, gid);
 CHECK_SIZE_AND_OFFSET(ipc_perm, cuid);
 CHECK_SIZE_AND_OFFSET(ipc_perm, cgid);
+#if !SANITIZER_LINUX || __GLIBC_PREREQ (2, 31)
 CHECK_SIZE_AND_OFFSET(ipc_perm, mode);
+#endif
 
 CHECK_TYPE_SIZE(shmid_ds);
 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_perm);
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<div class='path'>path: <a href='/guix/log/?id=d2454e91b3282f4078f5801acb975c180a5d0c05'>root</a>/<a href='/guix/log/tests?id=d2454e91b3282f4078f5801acb975c180a5d0c05'>tests</a>/<a href='/guix/log/tests/guix-hash.sh?id=d2454e91b3282f4078f5801acb975c180a5d0c05'>guix-hash.sh</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/tests/guix-hash.sh?id=d2454e91b3282f4078f5801acb975c180a5d0c05&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2022-01-04 20:37:29 -0500'>2022-01-04</span></td><td><a href='/guix/commit/tests/guix-hash.sh?id=8646f1f7a53d28f305f30420ad23b670159c53a9'>guix hash: Allow '--exclude-vcs' option using 'git' serializer.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/scripts/hash.scm (git-hash): Use '#:select?' with
'git-hash-directory'.
* tests/guix-hash.sh: Adjust accordingly.

Signed-off-by: Timothy Sample &lt;samplet@ngyro.com&gt;
</span></span></td><td>zimoun</td></tr>
<tr><td><span title='2021-12-17 17:29:34 +0100'>2021-12-17</span></td><td><a href='/guix/commit/tests/guix-hash.sh?id=28ffdc5cc815e981281e2aa67a81280666985f0f'>guix hash: Add git serializer.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/scripts/hash.scm (git-hash): New procedure.
(%options): Use it.
* tests/guix-hash.sh: Test it.
* doc/guix.texi: Update.

Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>zimoun</td></tr>
<tr><td><span title='2021-12-17 17:29:34 +0100'>2021-12-17</span></td><td><a href='/guix/commit/tests/guix-hash.sh?id=05c962594c346da21f201be72caadfa19060cc9d'>guix hash: Add 'serializer' option.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/scripts/hash.scm (%options): Deprecate 'recursive', add 'serializer'.
(%default-options): Add 'serializer'.
(nar-hash): New procedure.
(default-hash): New procedure.
(guix-hash)[file-hash]: Use them.
(show-help): Adjust.
* tests/guix-hash.scm: Adjust.
* doc/guix.texi: Update.

Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>zimoun</td></tr>
<tr><td><span title='2021-12-17 17:29:34 +0100'>2021-12-17</span></td><td><a href='/guix/commit/tests/guix-hash.sh?id=6e08f07f2032cd85cd67beadf7a91b5c26d0619d'>guix hash: Support several files.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/scripts/hash.scm (guix-hash): Allow several files.
[file-hash]: Catch system-error.
[formatted-hash]: New procedure.
* tests/guix-hash.sh: Add test.
* doc/guix.texi (Invoking guix hash): Mention "one or more files".

Co-authored-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>zimoun</td></tr>
<tr><td><span title='2021-01-04 11:51:48 +0100'>2021-01-04</span></td><td><a href='/guix/commit/tests/guix-hash.sh?id=ed63b7f87e88b0ce9c4a78bf0529599de9172b1f'>guix hash: Honor '-H' when used alongside '-r'.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/scripts/hash.scm (guix-hash): When 'recursive? is true, use
'open-hash-port' instead of 'open-sha256-port'.
* tests/guix-hash.sh: Add test for 'guix hash -r -H sha512'.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2020-09-28 21:06:36 -0500'>2020-09-28</span></td><td><a href='/guix/commit/tests/guix-hash.sh?id=d8934360d2453a403b5433e71d09188e4ed23b57'>tests: Simplify shell exit status negation;</a><span class='msg-avail'>...<span class='msg-tooltip'>* tests/guix-archive.sh, tests/guix-build-branch.sh, tests/guix-build.sh,
tests/guix-daemon.sh, tests/guix-download.sh, tests/guix-environment.sh,
tests/guix-gc.sh, tests/guix-git-authenticate.sh, tests/guix-graph.sh,
tests/guix-hash.sh, tests/guix-lint.sh, tests/guix-pack-relocatable.sh,
tests/guix-pack.sh, tests/guix-package-aliases.sh, tests/guix-package-net.sh,
tests/guix-package.sh: Use the shell '!' keyword to negate command exit status
in place of 'if ...; then false; else true; fi'
</span></span></td><td>Eric Bavier</td></tr>