fix library mkfiles for objtype=spim

sys/src/libc/spim/mkfile

@@ -0,0 +1,41 @@
+objtype=spim
+</$objtype/mkfile
+
+LIB=/$objtype/lib/libc.a
+SFILES=\
+	argv0.s\
+	atom.s\
+	getcallerpc.s\
+	getfcr.s\
+	main9.s\
+	main9p.s\
+	memccpy.s\
+	memchr.s\
+	memcmp.s\
+	memmove.s\
+	memset.s\
+	setjmp.s\
+	strchr.s\
+	strcmp.s\
+	strcpy.s\
+	tas.s\
+	vlop.s\
+
+CFILES=\
+	cycles.c\
+	lock.c\
+	notejmp.c\
+	sqrt.c\
+	vlrt.c\
+
+HFILES=/sys/include/libc.h
+
+OFILES=${CFILES:%.c=%.$O} ${SFILES:%.s=%.$O}
+
+%.$O:	../mips/%.c
+	$CC -I../mips $CFLAGS ../mips/$stem.c
+
+%.$O:	../mips/%.s
+	$AS -I../mips $AFLAGS ../mips/$stem.s
+
+</sys/src/cmd/mksyslib