alioth/nixpkgs
3
0
Fork 0
forked from mirrors/nixpkgs
Code Releases Activity

Patching libmad for mips (Ben Nanonote)

Browse source 
svn path=/nixpkgs/branches/stdenv-updates/; revision=23312
This commit is contained in:
Lluís Batlle i Rossell 2010-08-21 16:53:25 +00:00
parent 79653715d6
commit c68d102286
2 changed files with 77 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

73
pkgs/development/libraries/libmad/001-mips_removal_h_constraint.patch Normal file
View file

@ -0,0 +1,73 @@
Taken from openwrt:
https://dev.openwrt.org/browser/packages/libs/libmad/patches/001-mips_removal_h_constraint.patch?rev=18548
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) \

6
pkgs/development/libraries/libmad/default.nix
View file

@ -8,11 +8,13 @@ stdenv.mkDerivation {
sha256 = "bbfac3ed6bfbc2823d3775ebb931087371e142bb0e9bb1bee51a76a6e0078690";
};
patches = [ ./pkgconfig.patch ];
patches = [ ./001-mips_removal_h_constraint.patch ./pkgconfig.patch ];
buildNativeInputs = [ autoconf ];
# The -fforce-mem flag has been removed in GCC 4.3.
preConfigure = ''
${autoconf}/bin/autoconf
autoconf
substituteInPlace configure --replace "-fforce-mem" ""
'';