to EMUL=foo. (The GLDFOO_EMULATION_NAMEs have bee removed.)
* config/mh-foo: Rename LDEMULATION names as appropriate
(usually 'gldfoo' -> plain 'foo').
* ldmain.c: quit using exit
* *.sc: use *(COMMON) rather than [COMMON]
* ldlex.l, lexsup.c: much thinking moved from .l and put into .c,
to allow preprocessing of .l file.
* Makefile.in: New ldlex.l mangling
* ldexp.c (fold_binary): perform expressions with % and / in
integer.
* ldfile.c (open_a): open archives on VMS in a special way
* lderror.c: forgot to check in from a long while ago
