EXECUTION=normal
LEGACY=

# ---------------------------------------------------------------------
# OS parsing

ifeq ($(OS),Windows_NT)
	SPOOKYLIB = spookyhash.dll
	SPOOKYPATH = lib/spookyhash/build/bin/Release
	SPOOKY = -L./$(SPOOKYPATH) -L./lib/spookyhash/build -l:$(SPOOKYLIB)
	OSFLAGS = -shared
	# GCC = x86_64-w64-mingw32-gcc-5.4.0.exe
	GCC = x86_64-w64-mingw32-gcc.exe
	PREMAKE = premake5.exe
	OUT = build/gtools_windows$(LEGACY).plugin
	OUTM = build/gtools_windows_multi$(LEGACY).plugin
	OUTE = build/env_set_windows$(LEGACY).plugin
else
	UNAME_S := $(shell uname -s)
	ifeq ($(UNAME_S),Linux)
		OSFLAGS = -shared -fPIC -DSYSTEM=OPUNIX
		OUT = build/gtools_unix$(LEGACY).plugin
		OUTM = build/gtools_unix_multi$(LEGACY).plugin
		OUTE = build/env_set_unix$(LEGACY).plugin
		SPOOKYLIB = libspookyhash.a
		SPOOKYPATH = lib/spookyhash/build/bin/Release
		SPOOKY = -L./$(SPOOKYPATH) -L./lib/spookyhash/build -l:$(SPOOKYLIB)
	endif
	ifeq ($(UNAME_S),Darwin)
		OSFLAGS = -bundle -DSYSTEM=APPLEMAC
		OUT = build/gtools_macosx$(LEGACY).plugin
		OUTM = build/gtools_macosx_multi$(LEGACY).plugin
		OUTE = build/env_set_macosx$(LEGACY).plugin
		SPOOKYLIB = libspookyhash.a
		SPOOKYPATH = lib/spookyhash/build/bin/Release
		SPOOKY = $(SPOOKYPATH)/$(SPOOKYLIB)
	endif
	GCC = gcc
	PREMAKE = premake5
endif

ifeq ($(EXECUTION),windows)
	SPOOKYLIB = spookyhash.dll
	OSFLAGS = -shared
	GCC = x86_64-w64-mingw32-gcc
	OUT = build/gtools_windows$(LEGACY).plugin
	OUTE = build/env_set_windows$(LEGACY).plugin
endif

# ---------------------------------------------------------------------
# Gtools flags

SPI = 2.0
CFLAGS = -Wall -O3 $(OSFLAGS)
OPENMP = -fopenmp -DGMULTI=1
PTHREADS = -lpthread -DGMULTI=1

all: clean links gtools

git:
	git init
	git submodule add https://github.com/centaurean/spookyhash lib/spookyhash
	git submodule update --init --recursive

# ---------------------------------------------------------------------
# Rules

ifeq ($(OS),Windows_NT)
spooky:
	cp -f ./lib/windows/spookyhash.dll ./build/spookyhash.dll
	cp -f ./lib/windows/spookyhash.dll ./lib/spookyhash/build/spookyhash.dll
	echo -e "\nTo re-compile SpookyHash, run from the Visual Studio Developer Command Prompt:" \
	     "\n    copy /Y lib\\\\windows\\\\spookyhash-premake5.lua lib\\\\spookyhash\\\\build\\\\premake5.lua" \
	     "\n    cd lib\\\\spookyhash\\\\build" \
	     "\n    $(PREMAKE) vs2013" \
	     "\n    msbuild SpookyHash.sln" \
	     "\nSee 'Building#Troubleshooting' in README.md for details."
else ifeq ($(EXECUTION),windows)
spooky:
	cp -f ./lib/windows/spookyhash.dll ./build/spookyhash.dll
	cp -f ./lib/windows/spookyhash.dll ./lib/spookyhash/build/spookyhash.dll
else ifeq ($(UNAME_S),Darwin)
spooky:
	cd lib/spookyhash/build && $(PREMAKE) gmake
	cd lib/spookyhash/build && make clean
	cd lib/spookyhash/build && make
	mkdir -p ./build
else ifeq ($(UNAME_S),Linux)
ifeq ($(LEGACY),_legacy)
spooky:
	# cd lib/spookyhash/build && $(PREMAKE) gmake
	cd lib/spookyhash/build && make clean
	cd lib/spookyhash/build && CFLAGS+=-fPIC make
else
spooky:
	cd lib/spookyhash/build && $(PREMAKE) gmake
	cd lib/spookyhash/build && make clean
	cd lib/spookyhash/build && make
endif
endif

spookytest:
	cd lib/spookyhash/build && ./bin/Release/spookyhash-test

links:
	rm -f  src/plugin/lib
	rm -f  src/plugin/spi
	rm -f  src/plugin/spookyhash
	ln -sf ../../lib 	  src/plugin/lib
	ln -sf lib/spi-$(SPI) src/plugin/spi
	ln -sf lib/spookyhash src/plugin/spookyhash

gtools: src/plugin/gtools.c src/plugin/spi/stplugin.c
	mkdir -p ./build
	mkdir -p ./lib/spookyhash/build/bin/Releas
	$(GCC) $(CFLAGS) -o $(OUT)  src/plugin/spi/stplugin.c src/plugin/gtools.c $(SPOOKY)
	$(GCC) $(CFLAGS) -o $(OUTE) src/plugin/spi/stplugin.c src/plugin/env_set.c
	cp build/*plugin lib/plugin/

.PHONY: clean
clean:
	rm -f $(OUT) $(OUTE)