In this case, remove cputest.o (and/or cputest.lo), then build ffmpeg with
different optimizations. Like:
$ rm ffmpeg/libavcodec/cputest.*o
$ make CFLAGS='-O0 -g'
okay tried all that. Except I found deleting the files had no effect
- they were just recreated each time. Instead I deleted makefile
references to these files. All the references were in the makefile in
the directory:
quicktime/ffmpeg/libavcodec/i386/
If I configure and run with the complicated CFLAGS which Hermann
supplied I end up only needing to delete:
simple_idct_mmx.*
dsputil_mmx*.*
motion_est_mmx*.*
without Hermanns configuration, or with the Make CFLAGS='-O0 -f' i
needed to delete those files plus also:
fdct_mmx.*
idct_mmx.*
dsputil_mmx*.*
all in that same makefile.
Anyway deleting these files finally causes a new type of build error
'undefined reference to mm flags'. I didn't try to fix this one as I
assumed it was a problem created by my deletions (output snippet below
this email).
I'm seeing the pattern of problem libraries being associated with mmx.
I wonder if something is still broken in the auto configuration of mmx
flags for x86_64? Or if this indicates any particular one of my
dependencies as the problem. Any more ideas on the topic?
Graham E.
ffmpeg/libavcodec/.libs/libavcodec.a(utils.o): In function
`avcodec_encode_video':
utils.c:(.text+0x139a): undefined reference to `mm_flags'
ffmpeg/libavcodec/.libs/libavcodec.a(utils.o): In function
`avcodec_decode_video':
utils.c:(.text+0x14d4): undefined reference to `mm_flags'
ffmpeg/libavcodec/.libs/libavcodec.a(mpegvideo.o): In function
`MPV_frame_end':
mpegvideo.c:(.text+0x5cde): undefined reference to `mm_flags'
ffmpeg/libavcodec/.libs/libavcodec.a(mpegvideo.o): In function
`select_input_picture':
mpegvideo.c:(.text+0x8e11): undefined reference to `mm_flags'
ffmpeg/libavcodec/.libs/libavcodec.a(mpegvideo.o): In function
`ff_draw_horiz_band':
mpegvideo.c:(.text+0x195a9): undefined reference to `mm_flags'
ffmpeg/libavcodec/.libs/libavcodec.a(mpegvideo.o):mpegvideo.c:(.text+0x1f90c):
more undefined references to `mm_flags' follow
ffmpeg/libavcodec/.libs/libavcodec.a(dsputil.o): In function `dsputil_init':
dsputil.c:(.text+0x23a58): undefined reference to `dsputil_init_mmx'
ffmpeg/libavcodec/.libs/libavcodec.a(imgresample.o): In function
`h_resample':
imgresample.c:(.text+0x83d): undefined reference to `mm_flags'
ffmpeg/libavcodec/.libs/libavcodec.a(mpeg12.o): In function
`slice_decode_thread':
mpeg12.c:(.text+0xa84d): undefined reference to `mm_flags'
ffmpeg/libavcodec/.libs/libavcodec.a(mpeg12.o): In function
`mpeg_decode_frame':
mpeg12.c:(.text+0xbc30): undefined reference to `mm_flags'
ffmpeg/libavcodec/.libs/libavcodec.a(mpeg12.o): In function `decode_frame':
mpeg12.c:(.text+0xc07e): undefined reference to `mm_flags'
ffmpeg/libavcodec/.libs/libavcodec.a(ratecontrol.o): In function
`ff_rate_control_init':
ratecontrol.c:(.text+0x13d): undefined reference to `mm_flags'
ffmpeg/libavcodec/.libs/libavcodec.a(ratecontrol.o):ratecontrol.c:(.text+0xbf0):
more undefined references to `mm_flags' follow
collect2: ld returned 1 exit status
make[1]: *** [libquicktimehv.la] Error 1
make[1]: Leaving directory `/home/gray/install/hvirtual/quicktime'
make: *** [all-recursive] Error 1
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