gcc/
	* Makefile.in (libgcc.mvars): Add LIBGCC_SYNC and LIBGCC_SYNC_CFLAGS.
	* libgcc-std.ver (GCC_4.4.0): New version, inherited from GCC_4.3.0.
	Add synchronization functions.
	* config/sync.c: New file.
	* config/mips/t-libgcc-mips16 (LIBGCC_SYNC): Define.
	(LIBGCC_SYNC_CFLAGS): Likewise.

libgcc/
	* Makefile.in: Add support for __sync_* libgcc functions.

From-SVN: r137431