# Makefile

TARGETS = hp48-sdl2

PKG_CONFIG ?= pkg-config

MAKEFLAGS +=-j$(NUM_CORES) -l$(NUM_CORES)

DOTOS = src/ui.o \
	src/config.o \
	src/emulator.o \
	src/main.o

cc-option = $(shell if $(CC) $(1) -c -x c /dev/null -o /dev/null > /dev/null 2>&1; \
	      then echo $(1); fi)

ifeq ($(FULL_WARNINGS), no)
EXTRA_WARNING_FLAGS := -Wno-unused-function \
	-Wno-redundant-decls \
	$(call cc-option,-Wno-maybe-uninitialized) \
	$(call cc-option,-Wno-discarded-qualifiers) \
	$(call cc-option,-Wno-uninitialized) \
	$(call cc-option,-Wno-ignored-qualifiers)
endif

ifeq ($(FULL_WARNINGS), yes)
EXTRA_WARNING_FLAGS := -Wunused-function \
	-Wredundant-decls \
	-fsanitize-trap \
	$(call cc-option,-Wunused-variable)
endif

override CFLAGS := -std=c11 \
	-Wall -Wextra -Wpedantic \
	-Wformat=2 -Wshadow \
	-Wwrite-strings -Wstrict-prototypes -Wold-style-definition \
	-Wnested-externs -Wmissing-include-dirs \
	-Wdouble-promotion \
	-Wno-sign-conversion \
	-Wno-unused-variable \
	-Wno-unused-parameter \
	-Wno-conversion \
	-Wno-format-nonliteral \
	$(call cc-option,-Wjump-misses-init) \
	$(call cc-option,-Wlogical-op) \
	$(call cc-option,-Wno-unknown-warning-option) \
	$(EXTRA_WARNING_FLAGS) \
	$(shell "$(PKG_CONFIG)" --cflags sdl2) \
	$(CFLAGS)

override CPPFLAGS := -I./src/ -D_GNU_SOURCE=1 \
	-DVERSION_MAJOR=$(VERSION_MAJOR) \
	-DVERSION_MINOR=$(VERSION_MINOR) \
	-DPATCHLEVEL=$(PATCHLEVEL) \
	$(CPPFLAGS)

LIBS = -lm $(shell "$(PKG_CONFIG)" --libs sdl2)

# SDLCFLAGS = $(shell "$(PKG_CONFIG)" --cflags sdl2)
# SDLLIBS = $(shell "$(PKG_CONFIG)" --libs sdl2)

# override CFLAGS += $(SDLCFLAGS) -DHAS_SDL2=1
# LIBS += $(SDLLIBS)

.PHONY: all clean clean-all pretty-code install mrproper

all: $(TARGETS)

hp48-sdl2: $(DOTOS)

# Binaries
$(TARGETS):
	$(CC) $^ -o $@ $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) $(LIBS)

# Cleaning
clean:
	rm -f src/*.o

mrproper: clean
	rm -f $(TARGETS)

clean-all: mrproper

# Formatting
pretty-code:
	clang-format -i src/*.c src/*.h