Hi, I want to build ffmpeg without optimization options, which means compiling flags uses O0 instead of O1-O3. I use the following command to build ffmpeg, where O1 is used in config.mak. ./configure --enable-debug --disable-optimizations ......
I want to disable all optimization options to debug ffmpeg/ffmpeg_g program. If I change optimization options in config.mak, i.e. using O0 instead of O1, there will be some error messages during the building process: libavutil/libavutil.a(cpu.o): In function `av_get_cpu_flags': /export/qiang/sourceCode/ffmpeg-2.8.3/libavutil/cpu.c:82: undefined reference to `ff_get_cpu_flags_aarch64' /export/qiang/sourceCode/ffmpeg-2.8.3/libavutil/cpu.c:84: undefined reference to `ff_get_cpu_flags_arm' /export/qiang/sourceCode/ffmpeg-2.8.3/libavutil/cpu.c:86: undefined reference to `ff_get_cpu_flags_ppc' How to build ffmpeg with O0 option? B.R. Andrew
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