[FFmpeg-user] build error

[Jim Worrall]

Thank you Carl Eugen.  It was a completely fresh directory.  
Maybe an electron went awry.  

I wasn’t aware you could run make/gmake on individual files.  When I went 
gmake libavformat/libavformat.version

It seemed to work:
GEN	libavutil/libavutil.version
GEN	libswscale/libswscale.version
GEN	libswresample/libswresample.version
GEN	libpostproc/libpostproc.version
GEN	libavcodec/libavcodec.version
GEN	libavformat/libavformat.version
GEN	libavfilter/libavfilter.version
GEN	libavdevice/libavdevice.version
gmake: 'libavformat/libavformat.version' is up to date.

Then I deleted the build directory and started fresh:

git clone https://git.ffmpeg.org/ffmpeg.git ffmpeg

Then got in there and repeated the previous ./configure command.
Then just ‘gmake'.
Then 'gmake install’
Everything completed no problem.

Not sure what went wrong before, but thank you for the tip!