Description of problem:

libsndfile-1.0.31-1.fc32.x86_64 has shipped without support for flac, ogg or vorbis.

How reproducible:

Observe that: ldd libsndfile.so.1.0.28 ==>

	linux-vdso.so.1 (0x00007ffda23e2000)
	libgsm.so.1 => /lib64/libgsm.so.1 (0x00007f671eab9000)
	libFLAC.so.8 => /lib64/libFLAC.so.8 (0x00007f671ea5c000)
	libogg.so.0 => /lib64/libogg.so.0 (0x00007f671ea51000)
	libvorbis.so.0 => /lib64/libvorbis.so.0 (0x00007f671ea21000)
	libvorbisenc.so.2 => /lib64/libvorbisenc.so.2 (0x00007f671e976000)
	libm.so.6 => /lib64/libm.so.6 (0x00007f671e831000)
	libc.so.6 => /lib64/libc.so.6 (0x00007f671e665000)
	/lib64/ld-linux-x86-64.so.2 (0x00007f671eb76000)

However, ldd libsndfile.so.1.0.31 ==>

	linux-vdso.so.1 (0x00007ffc3d12a000)
	libgsm.so.1 => /lib64/libgsm.so.1 (0x00007ff6682fd000)
	libm.so.6 => /lib64/libm.so.6 (0x00007ff6681b8000)
	libc.so.6 => /lib64/libc.so.6 (0x00007ff667fee000)
	/lib64/ld-linux-x86-64.so.2 (0x00007ff6683b2000)

Compiling the source package without using the specfile gives:

	linux-vdso.so.1 (0x00007ffc4c5f4000)
	libgsm.so.1 => /lib64/libgsm.so.1 (0x00007f3eeb748000)
	libFLAC.so.8 => /lib64/libFLAC.so.8 (0x00007f3eeb6eb000)
	libvorbis.so.0 => /lib64/libvorbis.so.0 (0x00007f3eeb6bb000)
	libvorbisenc.so.2 => /lib64/libvorbisenc.so.2 (0x00007f3eeb610000)
	libopus.so.0 => /lib64/libopus.so.0 (0x00007f3eeb5af000)
	libogg.so.0 => /lib64/libogg.so.0 (0x00007f3eeb5a4000)
	libm.so.6 => /lib64/libm.so.6 (0x00007f3eeb45d000)
	libc.so.6 => /lib64/libc.so.6 (0x00007f3eeb293000)
	libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007f3eeb278000)
	/lib64/ld-linux-x86-64.so.2 (0x00007f3eeb805000)

Additional info:

Support for opus was added upstream, but opus-devel is not in the specfile prerequisites.  Note that "configure" contains this remark:

WARNING: *** Unfortunately, for ease of maintenance, the external libs
WARNING: *** are an all or nothing affair.

So the fix is to add to the specfile:

BuildRequires:	opus-devel