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Makefile
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Makefile
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# output binary
BIN := run
# source files
SRCS := $(wildcard *.cpp algo/*.cpp)
# files included in the tarball generated by 'make dist' (e.g. add LICENSE file)
DISTFILES := $(BIN)
# filename of the tar archive generated by 'make dist'
DISTOUTPUT := $(BIN).tar.gz
# intermediate directory for generated object files
OBJDIR := .o
# intermediate directory for generated dependency files
DEPDIR := .d
# object files, auto generated from source files
OBJS := $(patsubst %,$(OBJDIR)/%.o,$(basename $(SRCS)))
# dependency files, auto generated from source files
DEPS := $(patsubst %,$(DEPDIR)/%.d,$(basename $(SRCS)))
# compilers (at least gcc and clang) don't create the subdirectories automatically
$(shell mkdir -p $(dir $(OBJS)) >/dev/null)
$(shell mkdir -p $(dir $(DEPS)) >/dev/null)
# C compiler
CC := gcc
# C++ compiler
CXX := g++
# linker
LD := g++
# tar
TAR := tar
# C flags
CFLAGS := -std=c11
# C++ flags
CXXFLAGS := -std=c++14
# C/C++ flags
CPPFLAGS := -Wall -Wextra -pedantic -O2
# Debug flags
DEBUGFLAGS := -g -Wshadow -Wformat=2 -Wfloat-equal -Wconversion -Wlogical-op -Wshift-overflow=2 -Wduplicated-cond -Wcast-qual -Wcast-align -D_GLIBCXX_DEBUG -D_GLIBCXX_DEBUG_PEDANTIC -D_FORTIFY_SOURCE=2 -fstack-protector
# Release flags
RELEASEFLAGS := -DNDEBUG
# linker flags
LDFLAGS :=
# linker debug flags
LDDEBUGFLAGS :=
# flags required for dependency generation; passed to compilers
DEPFLAGS = -MT $@ -MD -MP -MF $(DEPDIR)/$*.Td
# Following flags broken in Ubuntu 16.04:
# -fsanitize=undefined -fno-sanitize-recover
# -fsanitize=address
# compile C source files
COMPILE.c = $(CC) $(DEPFLAGS) $(CFLAGS) $(CPPFLAGS) -c -o $@
# compile C++ source files
COMPILE.cc = $(CXX) $(DEPFLAGS) $(CXXFLAGS) $(CPPFLAGS) -c -o $@
# link object files to binary
LINK.o = $(LD) $(LDFLAGS) $(LDLIBS) -o $@
# precompile step
PRECOMPILE =
# postcompile step
POSTCOMPILE = mv -f $(DEPDIR)/$*.Td $(DEPDIR)/$*.d
all: $(BIN)
mkdir -p res
.PHONY: debug
debug: CPPFLAGS += $(DEBUGFLAGS)
debug: LDFLAGS += $(LDDEBUGFLAGS)
debug: $(BIN)
mkdir -p res
.PHONY: release
release: CPPFLAGS += $(RELEASEFLAGS)
release: $(BIN)
mkdir -p res
dist: $(DISTFILES)
$(TAR) -cvzf $(DISTOUTPUT) $^
.PHONY: clean
clean:
$(RM) -r $(OBJDIR) $(DEPDIR) $(BIN)
.PHONY: distclean
distclean: clean
$(RM) $(BIN) $(DISTOUTPUT)
.PHONY: install
install:
@echo no install tasks configured
.PHONY: uninstall
uninstall:
@echo no uninstall tasks configured
.PHONY: check
check:
@echo no tests configured
.PHONY: help
help:
@echo available targets: all dist clean distclean install uninstall check debug release
$(BIN): $(OBJS)
$(LINK.o) $^
$(OBJDIR)/%.o: %.c
$(OBJDIR)/%.o: %.c $(DEPDIR)/%.d
$(PRECOMPILE)
$(COMPILE.c) $<
$(POSTCOMPILE)
$(OBJDIR)/%.o: %.cpp
$(OBJDIR)/%.o: %.cpp $(DEPDIR)/%.d
$(PRECOMPILE)
$(COMPILE.cc) $<
$(POSTCOMPILE)
$(OBJDIR)/%.o: %.cc
$(OBJDIR)/%.o: %.cc $(DEPDIR)/%.d
$(PRECOMPILE)
$(COMPILE.cc) $<
$(POSTCOMPILE)
$(OBJDIR)/%.o: %.cxx
$(OBJDIR)/%.o: %.cxx $(DEPDIR)/%.d
$(PRECOMPILE)
$(COMPILE.cc) $<
$(POSTCOMPILE)
.PRECIOUS = $(DEPDIR)/%.d
$(DEPDIR)/%.d: ;
-include $(DEPS)