common.mk

ifeq (${USE_DOUBLE}, 1)
CFLAGS +=-DUSE_DOUBLE
endif

ifeq (${USE_DEBUG}, 1)
CFLAGS  += -fsanitize=address -fno-omit-frame-pointer -Og
LDFLAGS += -fsanitize=address -fno-omit-frame-pointer -Og
else
CFLAGS  += -DNDEBUG -fomit-frame-pointer -fno-stack-protector -fno-common -O2 -fno-math-errno -fno-trapping-math -ffp-contract=off -fno-signed-zeros
LDFLAGS += -fomit-frame-pointer -fno-stack-protector -fno-common -O2 -fno-math-errno -fno-trapping-math -ffp-contract=off -fno-signed-zeros
endif

ifeq (${USE_LTO}, 1)
CFLAGS  += -flto
LDFLAGS += -flto
endif

ifeq (${USE_GETTEXT}, 1)
CFLAGS  += -DUSE_GETTEXT
endif

ifeq (${USE_COVERAGE}, 1)
CFLAGS  += -coverage -O0
LDFLAGS += -coverage -O0
#CFLAGS  += -ftest-coverage -fprofile-arcs -O0 -g
#LDFLAGS += --coverage
endif

ifeq (${BUILD_ON_WINDOWS}, 1)
CFLAGS  += -DBUILD_ON_WINDOWS=1 -D_XOPEN_SOURCE=700 -Wl,--export-all-symbols
LDFLAGS += -Wl,--enable-auto-import -Wl,--export-all-symbols -static -Wl,--out-implib=lib${GWION_PACKAGE}.dll.a
else
LDFLAGS += -rdynamic
LDFLAGS += -lm
endif

ifeq ($(shell uname), Darwin)
AR = /usr/bin/libtool
AR_OPT = -static $^ -o $@
LDFLAGS += -undefined dynamic_lookup
else
AR = ar
AR_OPT = rcs $@ $^
endif

PACKAGE_INFO ?= -DGWION_PACKAGE='"${GWION_PACKAGE}"'
INSTALL_PREFIX ?= -DINSTALL_PREFIX='"${PREFIX}"'

build/%.o: $(subst build,src, $(@:.o=.c))
	$(info compile $(subst build/,,$(@:.o=)))
	@mkdir -p $(shell dirname $@) > /dev/null
	@mkdir -p $(subst build,.d,$(shell dirname $@)) > /dev/null
	@${CC} $(DEPFLAGS) ${CFLAGS} -c $(subst build,src,$(@:.o=.c)) -o $@
	@mv -f $(subst build,${DEPDIR},$(@:.o=.Td)) $(subst build,${DEPDIR},$(@:.o=.d)) && touch $@

DEPDIR := .d
$(shell mkdir -p $(DEPDIR) >/dev/null)
DEPFLAGS = -MT $@ -MMD -MP -MF $(subst build,${DEPDIR},$(@:.o=.Td))
DEPS := $(subst build,$(DEPDIR),$(OBJ:.o=.d))
-include $(DEPS)


define _options
  $(info PACKAGE : ${GWION_PACKAGE})
  $(info CC      : ${CC})
  $(info CFLAGS  : ${CFLAGS})
  $(info LDFLAGS : ${LDFLAGS})
endef