gcc/ChangeLog:
	* Makefile.in (ALL_CFLAGS): Add file-specific CFLAGS.
	(ALL_HOST_FRONTEND_OBJS): New, for all front-end specific objects.
	(ALL_HOST_BACKEND_OBJS): New, for all backend and target objects.
	(ALL_HOST_OBJS): Now a union of the above two.
	<section "Language makefile fragments">: Add -DIN_GCC_FRONTEND for
	all files in ALL_HOST_FRONTEND_OBJS.
	* system.h: Poison GCC_RTL_H if IN_GCC_FRONTEND is defined.
	* c-common.c: Pretend to be a backend file by undefining
	IN_GCC_FRONTEND (still need rtl.h here).

ada/ChangeLog:
	* gcc-interface/decl.c: Pretend to be a backend file by undefining
	IN_GCC_FRONTEND (still need rtl.h here).

java/ChangeLog:
	* buildings.c: Pretend to be a backend file by undefining
	IN_GCC_FRONTEND (still need rtl.h here).

From-SVN: r159927