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='2017-08-20 20:55:45 +0800'>2017-08-20</span></td><td><a href='/guix/commit/tests/guix-download.sh?id=a02967d77af03d6468e25d6e26dbea0db919ce96'>guix download: Support retrieving local file without the URI scheme.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/scripts/download.scm (guix-download): Treat the URL argument as a local
file path when it fails on 'string-&gt;uri'.  Call 'fetch' with the processed
'uri' instead of the original URL argument.
* tests/guix-download.sh: Adjust accordingly.
</span></span></td><td>宋文武</td></tr>
<tr><td><span title='2016-11-16 18:00:41 +0100'>2016-11-16</span></td><td><a href='/guix/commit/tests/guix-download.sh?id=1bcc87bb685b7985512add221f10e4cb58b5f6f7'>guix download: Add '-o' option.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/scripts/download.scm (download-to-file, download-to-store*): New
procedures.
(%default-options): Add 'download-proc'.
(show-help): Adjust description and document '-o'.
(%options): Add '-o'.
(guix-download): Remove 'store' variable.  Add 'fetch' and define 'path'
to as its result.
* tests/guix-download.sh: Add test.
</span></span></td><td>Ludovic Courtès</td></tr>