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Makefile
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Makefile
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# if $CXX is not set, guess default `cxx'. It has to be in system
CXX ?= cxx
# compile options
CXXFLAGS ?= -Os -Wall -Wpedantic -Wextra
# link options
LDFLAGS ?= -s
target ?= debug
<<targets>> := debug release
# addons
with ?= gmp
without ?=
<<addons>> := gmp
# Echo function
<< := echo
ifneq ($(shell eval 'echo -e'),-e)
<< += -e
endif
<<debug-dir> = Debug
<<release-dir>>= Release
<<target>> = $(firstword $(filter $(<<targets>>),$(target)))
ifeq ($(<<target>>),release)
<<tdir>> = Release
else
<<tdir>> = Debug
endif
# optional addons
<<with>> = $(sort $(filter-out $(without),$(filter $(<<addons>>),$(with))))
# project configs
CXXFLAGS += -I$(PWD)/src -I$(PWD)/
# rebuild on optional deps change
ifneq ($(filter gmp,$(<<with>>)),)
ifneq ($(shell pkg-config --exists gmp gmpxx && echo exists),)
PKGS += gmpxx gmp
CFLAGS += -D_USE_GMP
endif
endif
ifneq ($(PKGS),)
CXXFLAGS += $(shell pkg-config --cflags $(PKGS))
LDFLAGS += $(shell pkg-config --libs $(PKGS))
endif
<<sources>> := \
main.cpp
<<objects>> := $(<<sources>>:%=obj/$(<<tdir>>)/%.o)
# Output file name
ifeq ($(filter $(shell uname -o),Msys Cygwin),)
BINARY ?= bankman
else
ifeq ($(MSYSTEM_CARCH),i686)
BINARY ?= bankman.exe
else
BINARY ?= bankman64.exe
endif
endif
<<bindep>> = bin/$(<<tdir>>)/.$(BINARY).dep
<<binpth>> = bin/$(<<tdir>>)/$(BINARY)
<<->> := $(shell mkdir -p $(dir $(<<binpth>>)))
# Use $(<<bindep>>) file to track backend change
<<depends>> = $(sort $(<<with>>))
ifneq ($(sort $(file < $(<<bindep>>))),$(<<depends>>))
<<null>> := $(file > $(<<bindep>>),$(<<depends>>))
endif
undefine <<depends>> <<null>> <<->>
# using some makefile sorcery
all: $(<<binpth>>)
obj/$(<<tdir>>)/%.o: %
@$(<<) " CXX\t" $(<:src/%=%)
@mkdir -p $(shell dirname $(@))
@$(CXX) -c $(<) -o $(@) $(CXXFLAGS)
$(<<binpth>>): $(<<objects>>)
@if test -n "$(<<with>>)"; then $(<<) "WITH\t" $(<<with>>);fi
@$(<<) "LINK\t" "$(BINARY)$(^:obj/%=\\n\\t + %)"
@$(CXX) $(^) -o $(@) $(LDFLAGS)
install: $(<<binpth>>)
install -Dm0755 $(<) $(DESTDIR)$(PREFIX)/$(BINDIR)/$(BINARY)
uninstall:
sudo $(RM) -f $(DESTDIR)$(PREFIX)/$(BINDIR)/$(BINARY)
clean:
@$(<<) " RM\t" "$(BINARY)$(<<objects>>:obj/%=\\n\\t + %)"
@$(RM) -f $(<<objects>>) $(<<binpth>>) $(<<bindep>>)
test: $(BINARY)
./$(BINARY)
$(<<objects>>): $(<<bindep>>)
.PHONY: all clean install uninstall test