Makefile.alt

# CC      := gcc -std=gnu99
CC      := clang
CFLAGS  := -g -march=native -Wall -Wno-unused-function -Wno-unused-variable -O0 -D_GNU_SOURCE # -flto -B/home/abyrd/svn/binutils/build/gold/ld-new -use-gold-plugin
LIBS    := -lzmq -lczmq -lm -lwebsockets -lprotobuf-c
SOURCES := $(wildcard *.c)
OBJECTS := $(SOURCES:.c=.o)
BINS    := workerrrr-web workerrrr brrrroker client lookup-console hashgrid testerrrr explorerrrr rrrrealtime otp_api otp_client struct_test rrrrealtime-viz

BIN_BASES     := $(subst rrrr,r,$(BINS))
BIN_OBJECTS   := $(BIN_BASES:=.o)
OTHER_OBJECTS := $(filter-out $(BIN_OBJECTS),$(OBJECTS))

.PHONY: clean show check all 

all: $(BINS)

clean:
	rm -f *.o *.d *~ core $(BINS)

show:
	# $(SOURCES)
	# $(OBJECTS)
	# $(BIN_BASES)
	# $(BIN_OBJECTS)
	# $(OTHER_OBJECTS)

check:
	check

# -MM means create dependencies files to catch header modifications
# -MD means output them to a file, appears to be missing on clang
# -MP would be better but seems broken in clang
%.o: %.c
	$(CC) -c     $(CFLAGS) $*.c -o $*.o
	$(CC) -c -MM $(CFLAGS) $*.c  > $*.d

# include dependency rules for already-existing .o files
-include $(OBJECTS:.o=.d)

# re-expand variables in subsequent rules
.SECONDEXPANSION:

# each binary depends on its own .o file and the remaining library .o files
$(BINS): $$(subst rrrr,r,$$@).o $(OTHER_OBJECTS)
	$(CC) $(CFLAGS) $(subst rrrr,r,$@).o $(OTHER_OBJECTS) $(LIBS) -o $@

# rrrrealtime-viz is exceptional and compiled separately because it uses libSDL, libGL, and libshp
# these targets override the wildcard rules above.

realtime-viz.o: realtime-viz.c
	$(CC) -c $(CFLAGS) $(shell sdl-config --cflags) realtime-viz.c -o $@

rrrrealtime-viz: realtime-viz.o $(OTHER_OBJECTS)
	$(CC) $(CFLAGS) $(shell sdl-config --cflags) realtime-viz.o $(OTHER_OBJECTS) $(LIBS) -lSDL -lGL -lshp -o $@