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.
The quotes around $binDir and $prefix are not needed in the
definitions of commandBinDir. There are over 120 recipes which
define commandBinDir, and *most* of them don't have quotes in
the lines defining commandBinDir and commandSuffix.
15 recipes were not consistent with the wiki. Now they are.
