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