Copied from Debian.

Description: Explicitely link against -lm
Bug-Debian: http://bugs.debian.org/553595
Author: Fabian Greffrath <fabian@debian-unofficial.org>, Dmitrijs Ledkovs <dmitrij.ledkov@gmail.com>

---
 libao/Makefile.am |    1 +
 src/Makefile.am   |    2 +-
 2 files changed, 2 insertions(+), 1 deletions(-)

--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -1,9 +1,9 @@
-CFLAGS = @A52DEC_CFLAGS@
+AM_CFLAGS = @A52DEC_CFLAGS@
 
 bin_PROGRAMS = a52dec extract_a52
 a52dec_SOURCES = a52dec.c getopt.c gettimeofday.c
 a52dec_LDADD = $(top_builddir)/liba52/liba52.la \
-	       $(top_builddir)/libao/libao.a @LIBAO_LIBS@
+	       $(top_builddir)/libao/libao.a @LIBAO_LIBS@ -lm
 extract_a52_SOURCES = extract_a52.c getopt.c
 
 man_MANS = a52dec.1 extract_a52.1
--- a/liba52/Makefile.am
+++ b/liba52/Makefile.am
@@ -1,4 +1,4 @@
-CFLAGS = @CFLAGS@ @LIBA52_CFLAGS@
+AM_CFLAGS = @CFLAGS@ @LIBA52_CFLAGS@
 
 lib_LTLIBRARIES = liba52.la
 
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<div class='path'>path: <a href='/guix/log/?id=10d3f8aa7b4962bf56c7d52c183b933b60a4715e'>root</a>/<a href='/guix/log/gnu?id=10d3f8aa7b4962bf56c7d52c183b933b60a4715e'>gnu</a>/<a href='/guix/log/gnu/machine.scm?id=10d3f8aa7b4962bf56c7d52c183b933b60a4715e'>machine.scm</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/gnu/machine.scm?id=10d3f8aa7b4962bf56c7d52c183b933b60a4715e&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2022-02-08 13:34:02 +0100'>2022-02-08</span></td><td><a href='/guix/commit/gnu/machine.scm?id=ab7114191d4599e36958c2ec18491618bf0cc6a9'>gnu: Fix typo.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/machine.scm: Fix typo in top-level comment.

Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>jgart</td></tr>
<tr><td><span title='2020-07-25 19:11:36 +0200'>2020-07-25</span></td><td><a href='/guix/commit/gnu/machine.scm?id=a5e2fc73760a2ae023f2e56bdbf8025971f90e64'>utils: Move &lt;location&gt; and '&amp;error-location' to (guix diagnostics).</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/utils.scm (&lt;location&gt;, source-properties-&gt;location)
(location-&gt;source-properties, &amp;error-location): Move to...
* guix/diagnostics.scm: ... here.
* gnu.scm: Adjust imports accordingly.
* gnu/machine.scm: Likewise.
* gnu/system.scm: Likewise.
* gnu/tests.scm: Likewise.
* guix/inferior.scm: Likewise.
* tests/channels.scm: Likewise.
* tests/packages.scm: Likewise.
</span></span></td><td>Ludovic Courtès</td></tr>