[PATCH] fix libmad compilation with GCC-4.4 on mips

[Graham Gower <graham.gower@gmail.com>]

Fix build failure due to removal of the h asm constraint in GCC-4.4 mips port.

-Graham

diff --git a/recipes/libmad/files/mad-mips-h-constraint.patch b/recipes/libmad/files/mad-mips-h-constraint.patch
new file mode 100644
index 0000000..b65555e
--- /dev/null
+++ b/recipes/libmad/files/mad-mips-h-constraint.patch
@@ -0,0 +1,70 @@
+diff -ur libmad-0.15.1b-orig/fixed.h libmad-0.15.1b/fixed.h
+--- libmad-0.15.1b-orig/fixed.h	2004-02-17 12:32:03.000000000 +1030
++++ libmad-0.15.1b/fixed.h	2009-08-05 10:46:30.000000000 +0930
+@@ -299,6 +299,23 @@
+ 
+ # elif defined(FPM_MIPS)
+ 
++/* Test for gcc >= maj.min, as per __GNUC_PREREQ in glibc */
++#if defined (__GNUC__) && defined (__GNUC_MINOR__)
++#define __GNUC_PREREQ(maj, min) \
++	((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
++#else
++#define __GNUC_PREREQ(maj, min)  0
++#endif
++
++#if __GNUC_PREREQ(4,4)
++  typedef unsigned int u64_di_t __attribute__ ((mode (DI)));
++# define MAD_F_MLX(hi, lo, x, y) \
++   do { \
++      u64_di_t __ll = (u64_di_t) (x) * (y); \
++      hi = __ll >> 32; \
++      lo = __ll; \
++   } while (0) 
++#else
+ /*
+  * This MIPS version is fast and accurate; the disposition of the least
+  * significant bit depends on OPT_ACCURACY via mad_f_scale64().
+@@ -328,6 +345,7 @@
+ 	 : "%r" ((x) >> 12), "r" ((y) >> 16))
+ #  define MAD_F_MLZ(hi, lo)  ((mad_fixed_t) (lo))
+ # endif
++#endif /* __GNU_PREREQ(4,4) */
+ 
+ # if defined(OPT_SPEED)
+ #  define mad_f_scale64(hi, lo)  \
+diff -ur libmad-0.15.1b-orig/mad.h libmad-0.15.1b/mad.h
+--- libmad-0.15.1b-orig/mad.h	2004-02-17 13:25:44.000000000 +1030
++++ libmad-0.15.1b/mad.h	2009-08-05 10:42:40.000000000 +0930
+@@ -344,6 +344,23 @@
+ 
+ # elif defined(FPM_MIPS)
+ 
++/* Test for gcc >= maj.min, as per __GNUC_PREREQ in glibc */
++#if defined (__GNUC__) && defined (__GNUC_MINOR__)
++#define __GNUC_PREREQ(maj, min) \
++	((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
++#else
++#define __GNUC_PREREQ(maj, min)  0
++#endif
++
++#if __GNUC_PREREQ(4,4)
++  typedef unsigned int u64_di_t __attribute__ ((mode (DI)));
++# define MAD_F_MLX(hi, lo, x, y) \
++   do { \
++      u64_di_t __ll = (u64_di_t) (x) * (y); \
++      hi = __ll >> 32; \
++      lo = __ll; \
++   } while (0) 
++#else
+ /*
+  * This MIPS version is fast and accurate; the disposition of the least
+  * significant bit depends on OPT_ACCURACY via mad_f_scale64().
+@@ -373,6 +390,7 @@
+ 	 : "%r" ((x) >> 12), "r" ((y) >> 16))
+ #  define MAD_F_MLZ(hi, lo)  ((mad_fixed_t) (lo))
+ # endif
++#endif /* __GNU_PREREQ(4,4) */
+ 
+ # if defined(OPT_SPEED)
+ #  define mad_f_scale64(hi, lo)  \
diff --git a/recipes/libmad/libmad_0.15.1b.bb b/recipes/libmad/libmad_0.15.1b.bb
index 4a75c2d..738dcc2 100644
--- a/recipes/libmad/libmad_0.15.1b.bb
+++ b/recipes/libmad/libmad_0.15.1b.bb
@@ -7,7 +7,8 @@ PR = "r4"
 
 SRC_URI = "${SOURCEFORGE_MIRROR}/mad/libmad-${PV}.tar.gz \
            file://add-pkgconfig.patch;patch=1 \
-	   file://mad.diff;patch=1 "
+	   file://mad.diff;patch=1 \
+	   file://mad-mips-h-constraint.patch;patch=1"
 
 S = "${WORKDIR}/libmad-${PV}"