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# Generic C and C++ Makefile project template
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# Contains targets for `release', `debug', and `clean'.
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PROJECT=cow
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AUTHOR=Avril (Flanchan) <flanchan@cumallover.me>
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SRC_C = $(wildcard src/*.c)
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SRC_CXX = $(wildcard src/*.cpp)
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INCLUDE=include
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COMMON_FLAGS= -W -Wall -pedantic -fno-strict-aliasing $(addprefix -I,$(INCLUDE))
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MARCH?=native
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OPT_FLAGS?= $(addprefix -march=,$(MARCH)) -fgraphite -fopenmp -floop-parallelize-all -ftree-parallelize-loops=4 \
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-floop-interchange -ftree-loop-distribution -floop-strip-mine -floop-block \
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-fno-stack-check
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CXX_OPT_FLAGS?= $(OPT_FLAGS) -felide-constructors
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CFLAGS += $(COMMON_FLAGS) --std=gnu11
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CXXFLAGS += $(COMMON_FLAGS) --std=gnu++20 #-fno-exceptions
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LDFLAGS +=
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STRIP=strip
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RELEASE_CFLAGS?= -O3 -flto $(OPT_FLAGS)
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RELEASE_CXXFLAGS?= -O3 -flto $(CXX_OPT_FLAGS)
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RELEASE_LDFLAGS?= -O3 -flto
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DEBUG_CFLAGS?= -O0 -g -DDEBUG
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DEBUG_CXXFLAGS?= $(DEBUG_CFLAGS)
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DEBUG_LDFLAGS?=
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# Objects
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OBJ_C = $(addprefix obj/c/,$(SRC_C:.c=.o))
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OBJ_CXX = $(addprefix obj/cxx/,$(SRC_CXX:.cpp=.o))
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OBJ = $(OBJ_C) $(OBJ_CXX)
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# Phonies
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.PHONY: release
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release: | dirs $(PROJECT)-release.a
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-$(MAKE) clean-rebuild
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-$(MAKE) dirs
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$(MAKE) $(PROJECT)-release.so
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.PHONY: debug
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debug: | dirs $(PROJECT)-debug.a
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-$(MAKE) clean-rebuild
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-$(MAKE) dirs
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$(MAKE) $(PROJECT)-debug.so
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# Targets
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dirs:
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@mkdir -p obj/c{,xx}/src
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obj/c/%.o: %.c
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$(CC) -c $< $(CFLAGS) -o $@ $(LDFLAGS)
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obj/cxx/%.o: %.cpp
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$(CXX) -c $< $(CXXFLAGS) -o $@ $(LDFLAGS)
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$(PROJECT)-release.a: CFLAGS+= $(RELEASE_CFLAGS)
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$(PROJECT)-release.a: CXXFLAGS += $(RELEASE_CXXFLAGS)
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$(PROJECT)-release.a: LDFLAGS += $(RELEASE_LDFLAGS)
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$(PROJECT)-release.a: $(OBJ)
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ar rcs $@ $^
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ln -sf $@ $(PROJECT).a
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$(PROJECT)-debug.a: CFLAGS+= $(DEBUG_CFLAGS)
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$(PROJECT)-debug.a: CXXFLAGS += $(DEBUG_CXXFLAGS)
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$(PROJECT)-debug.a: LDFLAGS += $(DEBUG_LDFLAGS)
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$(PROJECT)-debug.a: $(OBJ)
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ar rcs $@ $^
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$(PROJECT)-release.so: CFLAGS+= $(RELEASE_CFLAGS) -fPIC
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$(PROJECT)-release.so: CXXFLAGS += $(RELEASE_CXXFLAGS) -fPIC
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$(PROJECT)-release.so: LDFLAGS += $(RELEASE_LDFLAGS)
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$(PROJECT)-release.so: $(OBJ)
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$(CXX) -shared $^ -o $@
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$(STRIP) $@
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ln -sf $@ $(PROJECT).so
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$(PROJECT)-debug.so: CFLAGS+= $(DEBUG_CFLAGS) -fPIC
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$(PROJECT)-debug.so: CXXFLAGS += $(DEBUG_CXXFLAGS) -fPIC
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$(PROJECT)-debug.so: LDFLAGS += $(DEBUG_LDFLAGS)
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$(PROJECT)-debug.so: $(OBJ)
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$(CXX) -shared $^ -o $@
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clean-rebuild:
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rm -rf obj
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clean: clean-rebuild
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rm -f $(PROJECT){,-{release,debug,pgo}}.{a,so}
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