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
 
e='switch'/></form></td></tr>
<tr><td class='sub'>Wojtek's customized Guix</td><td class='sub right'></td></tr></table>
<table class='tabs'><tr><td>
<a href='/guix/about/'>about</a><a href='/guix/'>summary</a><a href='/guix/refs/?id=359c350c7dfc74dc4b67ef7750660c6ea61f1528'>refs</a><a class='active' href='/guix/log/gnu/services/audio.scm?showmsg=1'>log</a><a href='/guix/tree/gnu/services/audio.scm?id=359c350c7dfc74dc4b67ef7750660c6ea61f1528'>tree</a><a href='/guix/commit/gnu/services/audio.scm?id=359c350c7dfc74dc4b67ef7750660c6ea61f1528'>commit</a><a href='/guix/diff/gnu/services/audio.scm?id=359c350c7dfc74dc4b67ef7750660c6ea61f1528'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/gnu/services/audio.scm'>
<input type='hidden' name='id' value='359c350c7dfc74dc4b67ef7750660c6ea61f1528'/><input type='hidden' name='showmsg' value='1'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/guix/log/?id=359c350c7dfc74dc4b67ef7750660c6ea61f1528&amp;showmsg=1'>root</a>/<a href='/guix/log/gnu?id=359c350c7dfc74dc4b67ef7750660c6ea61f1528&amp;showmsg=1'>gnu</a>/<a href='/guix/log/gnu/services?id=359c350c7dfc74dc4b67ef7750660c6ea61f1528&amp;showmsg=1'>services</a>/<a href='/guix/log/gnu/services/audio.scm?id=359c350c7dfc74dc4b67ef7750660c6ea61f1528&amp;showmsg=1'>audio.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/services/audio.scm?id=359c350c7dfc74dc4b67ef7750660c6ea61f1528'>Collapse</a>)</th><th class='left'>Author</th></tr>
<tr class='logheader'><td><span title='2020-12-06 23:18:08 +0100'>2020-12-06</span></td><td class='logsubject'><a href='/guix/commit/gnu/services/audio.scm?id=ce3b5e5a8d8566162201cb778c4586f94a626dfa'>services: mpd: Make /var/run/mpd/USER user-owned.</a></td><td>Ludovic Courtès</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
Fixes &lt;https://bugs.gnu.org/44820&gt;.
Reported by Simon &lt;lists@netpanic.org&gt;.

This is a followup to bb124f6e9c0af0a23736f233c2ea2c9c9b4a40a6.

* gnu/services/audio.scm (mpd-service-activation): Chown the parent of
DIRECTORY as well.


</td></tr>
<tr class='logheader'><td><span title='2020-11-06 23:10:18 +0100'>2020-11-06</span></td><td class='logsubject'><a href='/guix/commit/gnu/services/audio.scm?id=bb124f6e9c0af0a23736f233c2ea2c9c9b4a40a6'>services: mpd: Fix daemon startup.</a></td><td>Ludovic Courtès</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
Until now it would wait for a PID file that'd never come.

* gnu/services/audio.scm (mpd-shepherd-service): Add 'requirement'.
Remove #:pid-file from 'start'.
(mpd-service-activation): Create the ".mpd" directory since that's what
the daemon expects.


</td></tr>
<tr class='logheader'><td><span title='2020-11-06 22:59:19 +0100'>2020-11-06</span></td><td class='logsubject'><a href='/guix/commit/gnu/services/audio.scm?id=7209d7cbc37c108ca1148561a681258bb2222ab1'>services: mpd: Always create the "mpd" user account.</a></td><td>Ludovic Courtès</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
* gnu/services/audio.scm (%mpd-accounts): New variable.
(mpd-service-type)[extensions]: Add ACCOUNT-SERVICE-TYPE extension.


</td></tr>
<tr class='logheader'><td><span title='2020-11-06 08:54:27 -0500'>2020-11-06</span></td><td class='logsubject'><a href='/guix/commit/gnu/services/audio.scm?id=0c5d0c57d370b34f3ba677838deaa8baf7bca58a'>services: mpd: Do not eagerly look for a user.</a></td><td>Maxim Cournoyer</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
Running 'guix system search mpd' would throw a backtrace because the
mpd-shepherd-service service start Gexp contained an unquoted call to
'getpwnam', which would look for a missing 'mpd' user and fail.

* gnu/services/audio.scm (mpd-shepherd-service): gexp-unquote only the
relevant variable rather than the whole expression.


</td></tr>