add basic makefile infrastructure

Author: Vladimir Kotal

Makefile

@@ -1,6 +1,19 @@
-all: cstyle
+MAKE=make
 
-.PHONY: cstyle
+SUBDIRS=assert	\
+	debug
+
+all: $(SUBDIRS) cstyle
+
+$(SUBDIRS):
+	@$(MAKE) -C $@
+
+clean:
+	for dir in $(SUBDIRS); do \
+		$(MAKE) -C $$dir $@; \
+	done
+
+.PHONY: cstyle all clean $(SUBDIRS)
 cstyle:
 	@echo "checking C style"
 	@find . -type f -name '*.c' | while read file; do \

Makefile.common

@@ -0,0 +1,5 @@
+CC=cc
+CFLAGS=-Wall -pedantic
+
+%.o: %.c
+	$(CC) $(CFLAGS) -c $<

assert/Makefile

@@ -0,0 +1,9 @@
+include ../Makefile.common
+
+all: assert
+
+assert: assert.o
+	$(CC) -o $@ $<
+
+clean:
+	rm -f *.o a.out assert

debug/Makefile

@@ -0,0 +1,9 @@
+include ../Makefile.common
+
+all: coredump
+
+assert: coredump.o
+	$(CC) -o $@ $<
+
+clean:
+	rm -f *.o a.out coredump