* Makefile.in (fixinc.sh): Depend on specs.
* fixinc/Makefile.in: Add rule to create machname.h.
(fixlib.o): Depend on machname.h.
* fixinc/fixtests.c (machine_name): New test.
* fixinc/fixfixes.c (machine_name): New fix.
* fixinc/fixlib.c (mn_get_regexps): New helper function for
the machine_name test and fix.
* fixinc/fixlib.h: Prototype it.
* fixinc/inclhack.def (machine_name): Use the C test and fix.
* fixinc/fixincl.x, fixinc/inclhack.sh: Rebuild.
* gcc.c (do_spec_1) [case P]: Take care not to create
identifiers with three leading or trailing underscores.
* fixinc/Makefile.in (FIXINC_DEFS): Add -DIN_GCC.
(fixincl): Don't specify libraries twice on link line.
(gnu-regex.o): Remove special rule.
* fixinc/gnu-regex.c: Define REGEX_MALLOC if C_ALLOCA was
defined by config.h. Do not define _REGEX_RE_COMP.
(regcomp): Allocate and initialize a fastmap.
* fixinc/gnu-regex.h: Do not define _REGEX_RE_COMP.
From-SVN: r31542
