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TARGET := $(shell basename "$(shell pwd)")
SOURCES := .
INCLUDES := $(SOURCES)
CFLAGS :=
CFLAGS := $(CFLAGS) -Wall -Wextra -Os -std=gnu99
#CFLAGS := $(CFLAGS) -flto=3 -fwhole-program -fuse-linker-plugin
CFLAGS := $(CFLAGS) -flto=4 -fuse-linker-plugin
CFLAGS := $(CFLAGS) -fno-stack-protector -fno-ident -fomit-frame-pointer -falign-functions=1 -falign-jumps=1 -falign-loops=1 -fno-unwind-tables -fno-asynchronous-unwind-tables -fno-unroll-loops -fmerge-all-constants -fno-math-errno
CFLAGS := $(CFLAGS) -Wl,--as-needed
CFLAGS := $(CFLAGS) -DBUILD_COMMIT="\"`git rev-parse --short HEAD``git diff --shortstat --quiet || echo ' (dirty)'`\"" -DBUILD_DATE="\"`date -u +'%Y-%m-%d %H:%M:%S %Z'`\""
LIBDIR :=
LDFLAGS := -lm -lc
INCLUDE += $(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir))
CFILES += $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
CPPFILES += $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
OBJS := $(CFILES:.c=.o) $(CPPFILES:.cpp=.o)
DEPENDS := $(OBJS:.o=.d)
OUTPUT := $(CURDIR)/bin
ELF := $(OUTPUT)/$(TARGET)
export VPATH := $(foreach dir,$(SOURCES),$(CURDIR)/$(dir))
GCC ?= $(CROSS_COMPILE)gcc
STRIP ?= $(CROSS_COMPILE)strip
.PHONY: all elf dir
all: elf
elf: $(ELF)
%.o:%.c Makefile
@$(GCC) -MMD $(CFLAGS) $(INCLUDE) -c $< -o $@
%.o:%.cpp Makefile
@$(GCC) -MMD $(CFLAGS) $(INCLUDE) -c $< -o $@
-include $(DEPENDS)
dir:
@mkdir -p "$(OUTPUT)"
$(ELF).elf: $(OBJS) dir
@$(GCC) $(CFLAGS) $(OBJS) $(LDFLAGS) $(LDLIBS) -o $@ && $(STRIP) --strip-all $@
$(ELF): $(ELF).elf
@upx -qq --ultra-brute $^ -o $@ -f
clean:
@rm -f *.o *.d
@rm -f lodepng/*.o lodepng/*.d
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