* Makefile.in (MMALLOC_CFLAGS): Eliminate intermediate MMALLOC_DISABLE

	* Makefile.in (MMALLOC_CFLAGS): Eliminate intermediate MMALLOC_DISABLE
	and MMALLOC_CHECK macros, and add comment indicating how host dependent
	makefile fragment should modify MMALLOC_CFLAGS to not use mmalloc, or
	to use it but to not do heap corruption checking.
	* gdbserver/Makefile.in: Ditto.
	* utils.c (init_malloc): Replace warning() use with direct call of
	fprintf_unfiltered, since current_target has not yet been set and thus
 	we cannot use warning().  If we try to use mmcheck and it fails,
	suggest that this configuration needs NO_MMCHECK or MMCHECK_FORCE
 	defined.  Other small mmalloc related cleanups.
	* config/sparc/sun4os4.mh (MMALLOC_CFLAGS): Define MMCHECK_FORCE to 1.
	* config/alpha/alpha-osf2.mh (MMALLOC_CFLAGS): Set to -DNO_MMCHECK.

	* config/sparc/xm-sun4os4.h (MMAP_BASE_ADDRESS, MMAP_INCREMENT):
	* config/i386/xm-i386v4.h (MMAP_BASE_ADDRESS, MMAP_INCREMENT):
	* config/i386/xm-linux.h (MMAP_BASE_ADDRESS, MMAP_INCREMENT):
	* config/m68k/xm-hp300hpux.h (MMAP_BASE_ADDRESS, MMAP_INCREMENT):
	* config/m68k/xm-m68kv4.h (MMAP_BASE_ADDRESS, MMAP_INCREMENT);
	* config/m68k/xm-sun3os4.h (MMAP_BASE_ADDRESS, MMAP_INCREMENT):
	* config/pa/xm-hppah.h (MMAP_BASE_ADDRESS, MMAP_INCREMENT):
	* config/sparc/xm-sun4sol2.h (MMAP_BASE_ADDRESS, MMAP_INCREMENT):
	Remove obsolete defines.

	* config/alpha/alpha-linux.mh (MMALLOC_DISABLE):
	* config/alpha/alpha-osf1.mh (MMALLOC_DISABLE):
	* config/rs6000/rs6000.mh (MMALLOC_DISABLE):
	* config/rs6000/aix4.mh (MMALLOC_DISABLE):
	* config/powerpc/aix4.mh (MMALLOC_DISABLE):
	* config/powerpc/aix.mh (MMALLOC_DISABLE):
	* config/ns32k/ns32km3.mh (MMALLOC_DISABLE):
	* config/mips/mipsm3.mh (MMALLOC_DISABLE):
	* config/mips/decstation.mh (MMALLOC_DISABLE):
	* config/m88k/cxux.mh (MMALLOC_DISABLE):
	* config/i386/i386mk.mh (MMALLOC_DISABLE):
	* config/i386/i386m3.mh (MMALLOC_DISABLE):
	* config/i386/i386gnu.mh (MMALLOC_DISABLE):
	Use MMALLOC_CFLAGS instead.