Made easier to use other compiler

modules/src/assert/Makefile

@@ -2,26 +2,32 @@ EMHOME=../../..
 MODULES=$(EMHOME)/modules
 HDIR =	$(MODULES)/h
 INCLUDES = -I$(HDIR)
-CFLAGS = $(INCLUDES) -O
+CFLAGS = $(INCLUDES) -O $(COPT)
 INSTALL = $(MODULES)/install
 COMPARE = $(MODULES)/compare
 AR = ar
+SUF = o
+LIBSUF = a
 
-all:		libassert.a
+.SUFFIXES: .$(SUF)
+.c.$(SUF):
+	$(CC) -c $(CFLAGS) $*.c
 
-libassert.a:	BadAssert.o
-		$(AR) r libassert.a BadAssert.o
-		-sh -c 'ranlib libassert.a'
+all:		libassert.$(LIBSUF)
+
+libassert.$(LIBSUF):	BadAssert.$(SUF)
+		$(AR) r libassert.$(LIBSUF) BadAssert.$(SUF)
+		-sh -c 'ranlib libassert.$(LIBSUF)'
 
 install:	all
-		$(INSTALL) lib/libassert.a
+		$(INSTALL) lib/libassert.$(LIBSUF)
 		$(INSTALL) man/assert.3
 		$(INSTALL) h/assert.h
 
 cmp:		all
-		$(COMPARE) lib/libassert.a
-		$(COMPARE) man/assert.3
-		$(COMPARE) h/assert.h
+		-$(COMPARE) lib/libassert.$(LIBSUF)
+		-$(COMPARE) man/assert.3
+		-$(COMPARE) h/assert.h
 
 pr:
 		@pr Makefile assert.h BadAssert.c
@@ -30,7 +36,7 @@ opr:
 		make pr | opr
 
 clean:
-		rm -f *.[oa]
+		rm -f *.$(LIBSUF) *.$(SUF)
 
 lintlib:
 		lint $(INCLUDES) -Cassert BadAssert.c