My old generic C Makefile

Makefile

EXCL = 
#Include every .c file that will become an object in EXCL, as well as any other .c files to not make in this dir
C_FILES = $(filter-out $(EXCL),$(wildcard *.c))
PROGRAMS = $(C_FILES:.c=)
# For each main program named <main>.c, make a variable <main>_OBJS with .o files to add,
# and <main>_LIBS with libraries to link with -l



# Everything after this is generic

CC = gcc
CFLAGS = -Wall -ggdb

.PHONY: all
all: $(PROGRAMS)

define PROGRAM_template =
 $(1): $$($(1)_OBJS) $$($(1)_LIBS:%=-l%) $(1).c
 ALL_OBJS       += $(filter-out $(ALL_OBJS),$$($(1)_OBJS))
endef

$(foreach prog,$(PROGRAMS),$(eval $(call PROGRAM_template,$(prog))))

$(PROGRAMS):
        $(CC) $(CFLAGS) $^ $(LDLIBS) -o $@

%.o : %.c
        $(CC) $(CFLAGS) -c $<

clean:
        $(RM) $(ALL_OBJS) $(PROGRAMS) *~