latest changes to master and gcc-trunk

[Gaius Mulley]

Hello,

I've just pushed some changes to master and gcc-trunk branches.  These
changes are in preparation for submitting another set of patches to the
gcc mailing list.  The major visible changes are:

  *  the directory structure now looks like:
     gcc-versionno/gcc/m2
     gcc-versionno/libgm2/libm2iso
     gcc-versionno/libgm2/libm2pim
     gcc-versionno/libgm2/libm2cor
     gcc-versionno/libgm2/libm2min
     gcc-versionno/libgm2/libm2log

     the configuration selection language is now: m2 or modula2 or
     modula-2 (rather than gm2).

  *  -flibs=pim,iso,cor,min
     are now checked for legal entries.  If they do not match any of the
     default abbreviation then it checks the install directory for the
     subdirectory name.  If found then it assumes that it is a third
     party library and sets up the include path and link path
     accordingly.  If not found, then an error is issued.
     Users can specify the default libraries by:
     -flibs=pim,iso,cor,min or -flibs=m2pim,m2iso,m2cor,m2min

The libraries are installed as libm2iso.a, libm2pim.a, libm2cor.a,
libm2min.a and libm2log.a (hopefully the prefix libm2 should avoid
conflicts with other libraries on the system)


regards,
Gaius