CGO=gccgo
CGOFLAGS=-Wl,-R,/usr/local/gccgo/lib64
ifeq ($(STATIC_BUILD),yes)
CGOFLAGS+=-static -L /usr/lib/nptl -lgobegin -lgo -lpthread
endif # STATIC_BUILD

RM=rm
RMFLAGS=-rf
MKDIR=mkdir
AR=ar
ARFLAGS=rcs

OUT=$(BUILD_DIR)/hello
OUT_DEP=$(SOURCE_DIR)/hello.go

SOURCE_DIR=src
BUILD_DIR=build

release: all

all: $(OUT)

static:
	$(MAKE) STATIC_BUILD=yes all
	
$(OUT): $(OUT_DEP) init
	$(CGO) -o $@ $< $(CGOFLAGS) 
	
init:
	@if [ ! -d $(BUILD_DIR) ] ; then $(MKDIR) -p $(BUILD_DIR) ; fi

.PHONY: clean init

clean:
	$(RM) $(RMFLAGS) $(BUILD_DIR)