* config/arm/t-arm-elf (LIBGCC2_CFLAGS): Delete.
	* config/arm/t-linux (LIBGCC2_CFLAGS): Delete.
	(TARGET_LIBGCC2_CFLAGS): Define.
	(LIBGCC2_DEBUG_CFLAGS): Define.
	* config/arm/t-netbsd: Likewise.
	* config/arm/t-semi: Likewise.
	* config/arm/t-semiaof: Likewise.
	* config/arm/t-riscix: Likewise.

From-SVN: r25001