gnu: ffmpeg-4: Fix build with binutils ≥ 2.41.

* gnu/packages/patches/ffmpeg-4-binutils-2.41.patch: New patch.
* gnu/local.mk (dist_patch_DATA): Register it.
* gnu/packages/video.scm (ffmpeg-4): Use it.

Change-Id: I07ec3525edb220d85e086e145b9561ea3d084b6c

3 files changed, 79 insertions, 1 deletions

diff --git a/gnu/local.mk b/gnu/local.mk
index 6e73bdb6d9..e8c2199291 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -1234,6 +1234,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/ffmpeg-jami-pipewiregrab-source-filter.patch	\
   %D%/packages/patches/ffmpeg-jami-remove-mjpeg-log.patch	\
   %D%/packages/patches/ffmpeg-jami-screen-sharing-x11-fix.patch	\
+  %D%/packages/patches/ffmpeg-4-binutils-2.41.patch	\
   %D%/packages/patches/fifengine-boost-compat.patch		\
   %D%/packages/patches/fifengine-python-3.9-compat.patch	\
   %D%/packages/patches/fifengine-swig-compat.patch		\
diff --git a/gnu/packages/patches/ffmpeg-4-binutils-2.41.patch b/gnu/packages/patches/ffmpeg-4-binutils-2.41.patch
new file mode 100644
index 0000000000..52a9310029
--- /dev/null
+++ b/gnu/packages/patches/ffmpeg-4-binutils-2.41.patch
@@ -0,0 +1,76 @@
+From effadce6c756247ea8bae32dc13bb3e6f464f0eb 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>
+---
+ libavcodec/x86/mathops.h | 26 +++++++++++++++++++++++---
+ 1 file changed, 23 insertions(+), 3 deletions(-)
+
+diff --git a/libavcodec/x86/mathops.h b/libavcodec/x86/mathops.h
+index 6298f5ed19..ca7e2dffc1 100644
+--- a/libavcodec/x86/mathops.h
++++ b/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;
+ }
+ 
+-- 
+2.25.1
+
diff --git a/gnu/packages/video.scm b/gnu/packages/video.scm
index 4049328808..8b0937f9c6 100644
--- a/gnu/packages/video.scm
+++ b/gnu/packages/video.scm
@@ -1892,7 +1892,8 @@ audio/video codec library.")
                                  version ".tar.xz"))
              (sha256
               (base32
-               "14xadxm1yaamp216nq09xwasxg5g133v86dbb33mdg5di1zrlhdg"))))
+               "14xadxm1yaamp216nq09xwasxg5g133v86dbb33mdg5di1zrlhdg"))
+             (patches (search-patches "ffmpeg-4-binutils-2.41.patch"))))
     (inputs (modify-inputs (package-inputs ffmpeg)
               (replace "sdl2" sdl2-2.0)))
     (arguments