#104 Possibly missing compatibility to ffmpeg

[Mario Rohkrämer]

The media-autobuild_suite prepared support for liblensfun to be built into ffmpeg, but did not yet activate it.

I did so (with some manual editing, for testing purposes) and had to discover that there are issues with pkg-config files under MSYS2. In general, ffmpeg seems to have specific naming conventions and may expect the package configuration file to be named lib/pkgconfig/liblensfun.pc instead of lib/pkgconfig/lensfun.pc to match liblensfun.a in the file name to be linked – according to one of the main developers of MABS.

[Mario Rohkrämer]

There is a linker error reported in ffmpeg's configure log:

(...)/lib/liblensfun.a(auxfun.cpp.o):auxfun.cpp:(.text+0x852): undefined reference to `_imp__g_utf8_skip'

The reason may be similar to MINGW-packages issue 988 where a GCC flag

-DGLIB_STATIC_COMPILATION

was recommended.

[Mario Rohkrämer]

The issue has been solved in the media-autobuild suite; both separate naming and correct static compilation are handled well now.

This issue can be closed.