While _XOPEN_SOURCE=700 is the default for cross-platform components
of the midipix project, slibtool strives to offer a libtool alternative
to a range of users as wide as possible, and as such should keep the
requirements from the host system to a bare minimum.
The above internal interface is now doing the right thing, namely to
split the argument vector between object arguments and all other arguments,
then rejoin the arguments by placing object arguments first, and all other
arguments last.
