* Makefile.in (CFILES): Add safe-ctype.c.
(REQUIRED_OFILES): Add safe-ctype.o.
* argv.c: Define ISBLANK and use it, not isspace.
* basename.c, cplus-dem.c, fnmatch.c, pexecute.c, strtod.c,
strtol.c, strtoul.c: Include safe-ctype.h, not ctype.h. Use
uppercase ctype macros. Don't test ISUPPER(c)/ISLOWER(c)
before calling TOLOWER(c)/TOUPPER(c).
__DJGPP__. Use P_WAIT instead of constant in the spawnv* call.
Cast program to 'char *' in errmsg_arg assignment.
(PWAIT_ERROR): Define.
(pwait): Use PWAIT_ERROR. Adjust DJGPP's status code to conform
to DJGPP's WIF* macros.
if HAVE_STRING_H.
* pexecute.c, xexit.c: Include stdlib.h if HAVE_STDLIB_H.
* objalloc.c: Include config.h. Include stdlib.h and don't
declare malloc or free if HAVE_STDLIB_H.
* strerror.c, strsignal.c: Include stdlib.h if HAVE_STDLIB_H,
else declare malloc without prototype. Include string.h if
HAVE_STRING_H, else declare memset without prototype. Don't
include stddef.h.
* sort.c: Bring over from GCC.
