-ASSEM_SRC = sparc-assem.S
-#ARCH_SRC = sparc-arch.c undefineds.c
-ARCH_SRC = sparc-arch.c ldso-stubs.S
+ASSEM_SRC = sparc-assem.S ldso-stubs.S
+ARCH_SRC = sparc-arch.c #undefineds.c
+
+OS_SRC = sunos-os.c sparc-sunos-os.c
+OS_LIBS = -ldl -lsocket -lnsl -lrt