darwin-crt2.c: Move to ../libgcc/config/rs6000.

darwin-crt2.c: Move to ../libgcc/config/rs6000.

	gcc:
	* config/darwin-crt2.c: Move to ../libgcc/config/rs6000.
	* config/darwin-crt3.c: Move to ../libgcc/config.
	* config/t-darwin (EXTRA_MULTILIB_PARTS): Remove.
	($(T)crt3$(objext)): Remove.
	* config/rs6000/t-darwin (DARWIN_EXTRA_CRT_BUILD_CFLAGS): Remove.
	($(T)crt2$(objext)): Remove.
	* config.gcc (powerpc-*-darwin*): Remove extra_parts.
	(powerpc64-*-darwin*): Likewise.

	gcc/po:
	* EXCLUDES (config/darwin-crt2.c): Remove.

	libgcc:
	* config/darwin-crt3.o: New file.
	* config/rs6000/darwin-crt2.c: New file.
	* config/t-darwin: New file.
	* config/rs6000/t-darwin (DARWIN_EXTRA_CRT_BUILD_CFLAGS): New variable.
	(crt2.o): New rule.
	* config.host (*-*-darwin*): Add crt3.o to extra_parts.
	(powerpc-*-darwin*): Add crt2.o to extra_parts.
	(powerpc64-*-darwin*): Likewise.

From-SVN: r176239