[FFmpeg-trac] #2784(build system:new): MacOS: building minimal, audio-only version fails with linker error

[FFmpeg]

#2784: MacOS: building minimal, audio-only version fails with linker error
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             Reporter:  milgner      |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  build
              Version:  git-master   |  system
             Keywords:  osx          |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
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Changes (by cehoyos):

 * keywords:  MacOS => osx


Comment:

 {{{
 LD      libavfilter/libavfilter.3.dylib
 Undefined symbols for architecture x86_64:
   "_av_find_input_format", referenced from:
       _ff_load_image in lavfutils.o

 }}}
 {{{av_find_input_format}}} is defined in libavformat/format.c which is
 compiled unconditionally so your problem is difficult to understand. Could
 you confirm that you did {{{make distclean}}} before testing and that no
 conflicting versions of dynamic FFmpeg libraries are installed on your
 system?

 > Also it looks like there are still video components built, like
 libavcodec/dirac.o

 The ogg demuxer relies on dirac.o.

 Unrelated: Your configure line will get more readable if you use wildcards
 and lists:
 {{{./configure --disable-demuxers --enable-demuxer=pcm*,flac,latm}}}
 (This is supported since a long time.)

 {{{--disable-everything}}} originally was a debug option (that contrary to
 its name does not disable all components of FFmpeg), you may want to try
 {{{--disable-all}}}. As a side-effect, it will also fix the linking
 problem you reported (although that does not at all explain it).
 (This option is not supported since a long time, it will not work on old
 versions.)

 I don't think you will find pcm_bluray and pcm_dvd in any of the formats
 for which you enabled demuxers, the following should also work as
 expected:
 {{{./configure --disable-decoders --enable-decoder=pcm* --disable-
 decoder=pcm_bluray,pcm_dvd}}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2784#comment:1>
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