Fix MIPS assembly code to work with newer GCC, where the "=h"
constraint is no longer supported.

--- libmad/fixed.h.orig	2004-02-16 21:02:03.000000000 -0500
+++ libmad/fixed.h	2011-10-29 18:47:21.000000000 -0400
@@ -304,8 +304,8 @@
  * significant bit depends on OPT_ACCURACY via mad_f_scale64().
  */
 #  define MAD_F_MLX(hi, lo, x, y)  \
-    asm ("mult	%2,%3"  \
-	 : "=l" (lo), "=h" (hi)  \
+    asm ("mult	%2,%3\n\tmfhi  %1"  \
+	 : "=l" (lo), "=r" (hi)  \
 	 : "%r" (x), "r" (y))
 
 # if defined(HAVE_MADD_ASM)
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<tr><td><span title='2023-05-25 10:17:32 -0400'>2023-05-25</span></td><td><a href='/guix/commit/gnu/tests/telephony.scm?id=99fc7e5dd3c9c92f9b6c2e51db9dc5b0481a56b2'>tests: Fix the Jami service system tests.</a><span class='msg-avail'>...</span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2023-05-06 17:12:45 +0200'>2023-05-06</span></td><td><a href='/guix/commit/gnu/tests/telephony.scm?id=f51888272558d98cf5c196b93fb6c499056fbf6c'>tests: Add missing module imports for marionette-evaluated code.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2022-09-26 15:52:35 -0400'>2022-09-26</span></td><td><a href='/guix/commit/gnu/tests/telephony.scm?id=28a50eeac796d1b45200746cc685c7e20413d05c'>tests: telephony: Add missing import to fix jami tests.</a><span class='msg-avail'>...</span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2022-09-24 00:22:19 -0400'>2022-09-24</span></td><td><a href='/guix/commit/gnu/tests/telephony.scm?id=35e8615d387b6630006ccd8c3420154dab93b95a'>Revert "tests: telephony: Add extra packages to %jami-os for debugging."</a><span class='msg-avail'>...</span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2022-09-23 23:56:16 -0400'>2022-09-23</span></td><td><a href='/guix/commit/gnu/tests/telephony.scm?id=fd109c5c09ea836dcd0c7294263cf93ef4dac79d'>tests: jami-provisioning: Fix test derivation name.</a><span class='msg-avail'>...</span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2022-09-23 23:56:15 -0400'>2022-09-23</span></td><td><a href='/guix/commit/gnu/tests/telephony.scm?id=829c19142e62efa7ba9715fc682b4be959830b2e'>tests: telephony: Add extra packages to %jami-os for debugging.</a><span class='msg-avail'>...</span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2022-08-01 12:49:44 -0400'>2022-08-01</span></td><td><a href='/guix/commit/gnu/tests/telephony.scm?id=f5cc7d03a778f20e2ad487e2c17cc8853bc871f0'>gnu: telephony: Add a Jami test for a partially defined jami-account.</a><span class='msg-avail'>...</span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2022-06-10 23:52:33 -0400'>2022-06-10</span></td><td><a href='/guix/commit/gnu/tests/telephony.scm?id=85b4dabd94d53f8179f31a42046cd83fc3a352fc'>services: jami: Modernize to adjust to Shepherd 0.9+ changes.</a><span class='msg-avail'>...</span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2022-01-13 00:57:52 -0500'>2022-01-13</span></td><td><a href='/guix/commit/gnu/tests/telephony.scm?id=374fea0f3bc8035f626cb29e6045130df9ffdaf8'>services: Adjust the jami service for the upgraded jami.</a><span class='msg-avail'>...</span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2021-09-26 23:20:56 +0200'>2021-09-26</span></td><td><a href='/guix/commit/gnu/tests/telephony.scm?id=89b05442933d92f4b21c3294455a498e8333727d'>tests: Reduce boilerplate for users of 'system-test-runner'.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2021-09-25 18:52:05 +0200'>2021-09-25</span></td><td><a href='/guix/commit/gnu/tests/telephony.scm?id=1fb75128a5202b406622da6272bc809c46d1f439'>tests: Adjust to SRFI-64 as found in Guile 3.0.7.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2021-08-29 01:05:26 -0400'>2021-08-29</span></td><td><a href='/guix/commit/gnu/tests/telephony.scm?id=da4e40948326387d5bcda58783914d5f9ce8b095'>Migrate to the new 'targets' field of bootloader-configuration.</a><span class='msg-avail'>...</span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2021-08-02 17:23:30 -0400'>2021-08-02</span></td><td><a href='/guix/commit/gnu/tests/telephony.scm?id=10f554700c417b84c22c56fdd007567a52c45d75'>Reinstate "services: Add a service for Jami."</a><span class='msg-avail'>...</span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2021-08-02 15:48:59 -0400'>2021-08-02</span></td><td><a href='/guix/commit/gnu/tests/telephony.scm?id=4673f817938d9d2b1b40a072ab2e0c44a32ccc97'>Revert "services: Add a service for Jami."</a><span class='msg-avail'>...</span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2021-08-02 15:15:02 -0400'>2021-08-02</span></td><td><a href='/guix/commit/gnu/tests/telephony.scm?id=69dcc24c9f0cdfea674eb690e7755d26a25ced2b'>services: Add a service for Jami.</a><span class='msg-avail'>...</span></td><td>Maxim Cournoyer</td></tr>