GIT_SHA=$(shell git rev-parse --short HEAD)
DISABLED_WARNINGS=-Wno-switch -Wno-macro-redefined -Wno-unused-value
LDFLAGS=-pthread -ldl -lm -lstdc++
CFLAGS=-std=c++14 -DGIT_SHA=\"$(GIT_SHA)\"
CFLAGS:=$(CFLAGS) -DODIN_VERSION_RAW=\"dev-$(shell date +"%Y-%m")\"
CC=clang

OS=$(shell uname)

ifeq ($(OS), Darwin)
	LLVM_CONFIG=llvm-config
	ifneq ($(shell llvm-config --version | grep '^11\.'),)
		LLVM_CONFIG=llvm-config
	else
		$(error "Requirement: llvm-config must be version 11")
	endif

	LDFLAGS:=$(LDFLAGS) -liconv
	CFLAGS:=$(CFLAGS) $(shell $(LLVM_CONFIG) --cxxflags --ldflags)
	LDFLAGS:=$(LDFLAGS) -lLLVM-C
endif
ifeq ($(OS), Linux)
	LLVM_CONFIG=llvm-config-11
	ifneq ($(shell which llvm-config-11 2>/dev/null),)
		LLVM_CONFIG=llvm-config-11
	else
		ifneq ($(shell llvm-config --version | grep '^11\.'),)
			LLVM_CONFIG=llvm-config
		else
			$(error "Requirement: llvm-config must be version 11")
		endif
	endif

	CFLAGS:=$(CFLAGS) $(shell $(LLVM_CONFIG) --cxxflags --ldflags)
	LDFLAGS:=$(LDFLAGS) $(shell $(LLVM_CONFIG) --libs core native --system-libs)
endif

all: debug demo

demo:
	./odin run examples/demo/demo.odin

debug:
	$(CC) src/main.cpp src/libtommath.cpp $(DISABLED_WARNINGS) $(CFLAGS) -g $(LDFLAGS) -o odin

release:
	$(CC) src/main.cpp src/libtommath.cpp $(DISABLED_WARNINGS) $(CFLAGS) -O3 $(LDFLAGS) -o odin

release_native:
	$(CC) src/main.cpp src/libtommath.cpp $(DISABLED_WARNINGS) $(CFLAGS) -O3 -march=native $(LDFLAGS) -o odin

nightly:
	$(CC) src/main.cpp src/libtommath.cpp $(DISABLED_WARNINGS) $(CFLAGS) -DNIGHTLY -O3 $(LDFLAGS) -o odin