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package/ffmpeg: Fix i586 compilation with gcc5

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In file included from libavcodec/cabac_functions.h:46:0,
                 from libavcodec/h264_cabac.c:37:
libavcodec/h264_cabac.c: In function 'ff_h264_decode_mb_cabac':
libavcodec/x86/cabac.h:192:5: error: 'asm' operand has impossible constraints
     __asm__ volatile(

To reproduce the bug use this defconfig:

BR2_GCC_VERSION_5_1_X=y
BR2_PACKAGE_FFMPEG=y
BR2_PACKAGE_FFMPEG_GPL=y
BR2_PACKAGE_FFMPEG_NONFREE=y
BR2_PACKAGE_FFMPEG_FFPLAY=y
BR2_PACKAGE_FFMPEG_FFSERVER=y
BR2_PACKAGE_FFMPEG_FFPROBE=y
BR2_PACKAGE_FFMPEG_AVRESAMPLE=y
BR2_PACKAGE_FFMPEG_POSTPROC=y

[Thomas: add a comment in the code.]

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Bernd Kuhls 2015-06-20 21:44:55 +02:00 committed by Thomas Petazzoni
parent 7314eaa017
commit bfb8df2ad9
1 changed files with 5 additions and 0 deletions
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5
package/ffmpeg/ffmpeg.mk
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@ -261,6 +261,11 @@ ifeq ($(BR2_X86_CPU_HAS_MMX),y)
FFMPEG_CONF_OPTS += --enable-yasm
FFMPEG_DEPENDENCIES += host-yasm
else
ifeq ($(BR2_x86_i586),y)
# Needed to work around a bug with gcc 5.x:
# error: 'asm' operand has impossible constraints
FFMPEG_CONF_OPTS += --disable-inline-asm
endif
FFMPEG_CONF_OPTS += --disable-yasm
FFMPEG_CONF_OPTS += --disable-mmx
endif