Makefile

builddir=.build-$(shell gcc -dumpmachine)-$(shell gcc -dumpversion)

CMAKE_ARGS=

ifeq (,$(VERBOSE))
    MAKEFLAGS:=$(MAKEFLAGS)s
    ECHO=echo
else
    ECHO=@:
endif

TARGETS=Patagui
BUILDLN=build

all: $(TARGETS) $(BUILDLN) ;

$(TARGETS): cmake-build
    ln -s -f ${builddir}/$@ $@

$(BUILDLN):
    test -e $(BUILDLN) || ln -s -f ${builddir} $(BUILDLN)

cmake ${builddir}/CMakeCache.txt:
    mkdir -p ${builddir}
    $(ECHO) "Running cmake "
    cd ${builddir} && cmake $(CMAKE_ARGS) "$(@D)" ..

cmake-build: ${builddir}/CMakeCache.txt
    $(ECHO) "Building "
    $(MAKE) -C ${builddir}

install:
    $(ECHO) "Installing "
    $(MAKE) -C ${builddir} install

distclean:
    $(ECHO) -n "Cleaning up build directory "
    $(RM) -r ${builddir} $(BUILDLN) $(TARGETS)
    $(ECHO) " done"

%: cmake
    $(ECHO) "Running make $@ "
    $(MAKE) -C ${builddir} $@
    $(and $(filter clean,$@),$(RM) $(BUILDLN) $(TARGETS))

.PHONY: cmake-build cmake install $(BUILDLN)