lib/enc/x86_64/dct_decode_mmx.c missing from EXTRA_DIST
The rc tarball doesn't build on x86_64 due to missing x86_64/dct_decode_mmx.c. Tarball appears to have been built without due to missing entry in EXTRA_DIST in Makefile.am.
Committing fix to SVN now, logging this bug so others see it.