Fix a regression in glibc 2.27 when built without ldconfig.  See
<https://sourceware.org/bugzilla/show_bug.cgi?id=22977> for details.

diff --git a/include/libc-symbols.h b/include/libc-symbols.h
index 6137304b0b..7d630f36d8 100644
--- a/include/libc-symbols.h
+++ b/include/libc-symbols.h
@@ -508,7 +508,7 @@ for linking")
 # ifndef __ASSEMBLER__
 #  if !defined SHARED && IS_IN (libc) && !defined LIBC_NONSHARED \
       && (!defined PIC || !defined NO_HIDDEN_EXTERN_FUNC_IN_PIE) \
-      && !defined NO_HIDDEN
+      && !defined NO_HIDDEN && defined USE_LDCONFIG
 #   define __hidden_proto_hiddenattr(attrs...) \
   __attribute__ ((visibility ("hidden"), ##attrs))
 #   define hidden_proto(name, attrs...) \
ubmit();'>
<option value='koszko' selected='selected'>koszko</option>
<option value='koszko-scripts'>koszko-scripts</option>
</select> <input type='submit' value='switch'/></form></td></tr>
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<div class='path'>path: <a href='/guix/log/?id=5d297ca6760d62f1287c9d6f4729ce3352752df8'>root</a>/<a href='/guix/log/tests?id=5d297ca6760d62f1287c9d6f4729ce3352752df8'>tests</a>/<a href='/guix/log/tests/guix-package-aliases.sh?id=5d297ca6760d62f1287c9d6f4729ce3352752df8'>guix-package-aliases.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-package-aliases.sh?id=5d297ca6760d62f1287c9d6f4729ce3352752df8&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2019-09-21 16:48:36 +0200'>2019-09-21</span></td><td><a href='/guix/commit/tests/guix-package-aliases.sh?id=660dbe65641851aa99b810e4ae065a5f72dc37d0'>guix package: '--show' ignores deprecated packages.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/scripts/package.scm (process-query) &lt;'show&gt;: Remove superseded
packages.
* tests/guix-package-aliases.sh: Add test.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2019-09-21 16:48:36 +0200'>2019-09-21</span></td><td><a href='/guix/commit/tests/guix-package-aliases.sh?id=aeb51370da7c854e8167066df9b138e15d7363e6'>guix package: Add 'guix show' alias.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/scripts/show.scm: New file.
* Makefile.am (MODULES): Add it.
* po/guix/POTFILES.in: Add it.
* tests/guix-package-aliases.sh: Add test.
* doc/guix.texi (Invoking guix package): Document it and use it in a example.

Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>zimoun</td></tr>
<tr><td><span title='2019-04-29 12:19:24 +0200'>2019-04-29</span></td><td><a href='/guix/commit/tests/guix-package-aliases.sh?id=da56f10971e0b6f32969b10e38ed043b2c99bb82'>guix package: Add 'guix search' alias.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/scripts/search.scm: New file.
* Makefile.am (MODULES): Add it.
* po/guix/POTFILES.in: Add it.
* tests/guix-package-aliases.sh: Add test.
* doc/guix.texi (Invoking guix package): Document it and use it in a
couple of examples.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2019-04-29 10:13:44 +0200'>2019-04-29</span></td><td><a href='/guix/commit/tests/guix-package-aliases.sh?id=d824cfbabeb0780c9ea7a6dab02c47b6a4d029c6'>guix package: Add 'install', 'remove', and 'upgrade' aliases.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/scripts/install.scm, guix/scripts/remove.scm,
guix/scripts/upgrade.scm, tests/guix-package-aliases.sh: New files.
* Makefile.am (MODULES, SH_TESTS): Add them.
* po/guix/POTFILES.in: Add them.
* guix/scripts/package.scm (guix-package): Split with...
(guix-package*): ... this.  New procedure.
* doc/guix.texi (Invoking guix package): Document them.
(Binary Installation, Application Setup, Package Management)
(Packages with Multiple Outputs, Package Modules)
(X.509 Certificates, Installing Debugging Files): Use 'guix install' in
simple examples.
* etc/completion/bash/guix (_guix_complete): Handle "install", "remove",
and "upgrade".
</span></span></td><td>Ludovic Courtès</td></tr>