Makefile

CC ?= gcc

PNGLIBS:=$(shell pkg-config --libs libpng)
PNGCFLAGS:=$(shell pkg-config --cflags libpng)

O?=1

ifeq (${O},1)
DEBUGFLAG=
OPTIMIZEFLAG=-O3
else
DEBUGFLAG=-g
OPTIMIZEFLAG=
endif

ifeq (${P},1)
PROFILEFLAG=-pg
OPTIMIZEFLAG=-O3
DEBUGFLAG=
else
PROFILEFLAG=
endif

ifeq (${E},1)
STOP_ON_WARN=-Werror
else
STOP_ON_WARN=
endif

# -rdynamic is used by gcc for runtime stack traces (see stacktrace.c)
# but clang complains about it.
ifeq (${CC},clang)
RDYNAMIC=
else
RDYNAMIC=-rdynamic
endif

ifeq (${V},1)
Q=
ECHO=echo
else
Q=@
ECHO=echo
endif

MYCFLAGS=-DOSNFLOAT=float -DPREFIX=${PREFIX} ${DEBUGFLAG} ${PROFILEFLAG} ${OPTIMIZEFLAG}\
	--pedantic -Wall -Wextra ${STOP_ON_WARN} -pthread -std=gnu99 ${RDYNAMIC} \
	-Wno-extended-offsetof -Wno-gnu-folding-constant -Wstrict-prototypes \
	$(CFLAGS)


all:	gaseous-giganticus

OBJS=gaseous-giganticus.o mathutils.o mtwist.o open-simplex-noise.o png_utils.o pthread_util.o quat.o

GGLIBS=-lm ${LRTLIB} -lpng
GGLINK=$(ECHO) '  LINK' $@ && $(CC) ${MYCFLAGS} -o $@ ${GTKCFLAGS} ${OBJS} ${GGLIBS} $(LDFLAGS)

.c.o:
	$(Q)$(ECHO) '  COMPILE' $@ && $(CC) -c $(MYCFLAGS) $(CPPFLAGS) -o $@ $<

gaseous-giganticus:	${OBJS}
	$(Q)$(GGLINK)

clean:
	rm -f *.o gaseous-giganticus