x86_64 is used as a baseline: the "x86_64" entry, whatever status it has,
is transformed into "all", and then the other entries in ARCHITECTURES
either dropped or rearranged appropriately.
* live555: Use $developLibDir instead of $developDir/lib since the
latter is not appropriate for 2nd arch builds.
* aplayer: Drop $secondaryArchSuffix for cmd:nasm in BUILD_PREREQ.
* re2c: use tabs (instead of white spaces) in BUILD_REQUIRES.
* Remove x86_64 from SECONDARY_ARCHITECTURES for sdl2_net, edgar,
paladin-git and mediainfo-0.7.61.
waddlesplash