media-tv/mythtv: fix build w/ binutils-2.41

Closes: https://bugs.gentoo.org/912708
Signed-off-by: Sam James <sam@gentoo.org>

2 files changed, 76 insertions, 0 deletions

diff --git a/media-tv/mythtv/files/mythtv-33.1-ffmpeg-binutils-2.41.patch b/media-tv/mythtv/files/mythtv-33.1-ffmpeg-binutils-2.41.patch
new file mode 100644
index 000000000000..e976d8344a2d
--- /dev/null
+++ b/media-tv/mythtv/files/mythtv-33.1-ffmpeg-binutils-2.41.patch
@@ -0,0 +1,75 @@
+https://bugs.gentoo.org/912708
+https://bugs.gentoo.org/911582
+https://trac.ffmpeg.org/ticket/10405
+https://git.videolan.org/?p=ffmpeg.git;a=commit;h=25cd95a9dc3510c3cc0d7aad6f9d83f6a1078c7e
+https://sourceware.org/PR30578
+https://gcc.gnu.org/PR108941
+
+From 25cd95a9dc3510c3cc0d7aad6f9d83f6a1078c7e Mon Sep 17 00:00:00 2001
+From: =?utf8?q?R=C3=A9mi=20Denis-Courmont?= <remi@remlab.net>
+Date: Sun, 16 Jul 2023 18:18:02 +0300
+Subject: [PATCH] avcodec/x86/mathops: clip constants used with shift
+ instructions within inline assembly
+
+Fixes assembling with binutil as >= 2.41
+
+Signed-off-by: James Almer <jamrial@gmail.com>
+(cherry picked from commit effadce6c756247ea8bae32dc13bb3e6f464f0eb)
+--- a/external/FFmpeg/libavcodec/x86/mathops.h
++++ b/external/FFmpeg/libavcodec/x86/mathops.h
+@@ -35,12 +35,20 @@
+ static av_always_inline av_const int MULL(int a, int b, unsigned shift)
+ {
+     int rt, dummy;
++    if (__builtin_constant_p(shift))
+     __asm__ (
+         "imull %3               \n\t"
+         "shrdl %4, %%edx, %%eax \n\t"
+         :"=a"(rt), "=d"(dummy)
+-        :"a"(a), "rm"(b), "ci"((uint8_t)shift)
++        :"a"(a), "rm"(b), "i"(shift & 0x1F)
+     );
++    else
++        __asm__ (
++            "imull %3               \n\t"
++            "shrdl %4, %%edx, %%eax \n\t"
++            :"=a"(rt), "=d"(dummy)
++            :"a"(a), "rm"(b), "c"((uint8_t)shift)
++        );
+     return rt;
+ }
+ 
+@@ -113,19 +121,31 @@ __asm__ volatile(\
+ // avoid +32 for shift optimization (gcc should do that ...)
+ #define NEG_SSR32 NEG_SSR32
+ static inline  int32_t NEG_SSR32( int32_t a, int8_t s){
++    if (__builtin_constant_p(s))
+     __asm__ ("sarl %1, %0\n\t"
+          : "+r" (a)
+-         : "ic" ((uint8_t)(-s))
++         : "i" (-s & 0x1F)
+     );
++    else
++        __asm__ ("sarl %1, %0\n\t"
++               : "+r" (a)
++               : "c" ((uint8_t)(-s))
++        );
+     return a;
+ }
+ 
+ #define NEG_USR32 NEG_USR32
+ static inline uint32_t NEG_USR32(uint32_t a, int8_t s){
++    if (__builtin_constant_p(s))
+     __asm__ ("shrl %1, %0\n\t"
+          : "+r" (a)
+-         : "ic" ((uint8_t)(-s))
++         : "i" (-s & 0x1F)
+     );
++    else
++        __asm__ ("shrl %1, %0\n\t"
++               : "+r" (a)
++               : "c" ((uint8_t)(-s))
++        );
+     return a;
+ }
+ 
diff --git a/media-tv/mythtv/mythtv-33.1.ebuild b/media-tv/mythtv/mythtv-33.1.ebuild
index 1f945c653588..9275d56d64ed 100644
--- a/media-tv/mythtv/mythtv-33.1.ebuild
+++ b/media-tv/mythtv/mythtv-33.1.ebuild
@@ -146,6 +146,7 @@ BDEPEND="
 
 PATCHES=(
 	"${FILESDIR}"/${PN}-33.1-libva.patch
+	"${FILESDIR}"/${PN}-33.1-ffmpeg-binutils-2.41.patch
 )
 
 python_check_deps() {