* refs/heads/t/build:
build: Add $(LDFLAGS) to rule for oslfsck.
build: Prefix CFLAGS and friends with OSL_.
build: Reorder make variables.
build: Combine CFLAGS and LIBCFLAGS.
build: Simplify LDFLAGS setting.
build: Simplify Makefile.
build: Drop support for SunOS and MacOS.
build: Don't insist on gcc.
build: Create dependencies on the fly.