#!/usr/bin/make -f

export DEB_CPPFLAGS_MAINT_APPEND := $(shell dpkg-buildflags --get CPPFLAGS)
export DEB_CFLAGS_MAINT_APPEND := $(shell dpkg-buildflags --get CPPFLAGS)

ifneq (,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
    NUMJOBS = $(patsubst parallel=%,%,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
    BOOTSTRAP_PARALLEL = --parallel=$(NUMJOBS)
endif


BUILD_FLAGS_FILE = build-flags.cmake
set_build_flag = echo 'set($(1) $(2) CACHE \
    $(if $(filter $(2),YES ON TRUE NO OFF FALSE),BOOL,STRING) \
    $(or $(3),"") FORCE)' >> $(BUILD_FLAGS_FILE)
verify_build_flag = @grep \
    --include=CMakeLists.txt --include=*.cmake \
    --exclude=$(BUILD_FLAGS_FILE) -rqs '\b$(1)\b' . || echo '$(1) flag is obsolete'

$(BUILD_FLAGS_FILE) verify-build-flags:
	$(call $(flag_action),CMAKE_SKIP_RPATH,ON,"Skip rpath")
	$(call $(flag_action),CMAKE_USE_RELATIVE_PATHS,ON,"Use relative paths")
	$(call $(flag_action),CMAKE_VERBOSE_MAKEFILE,ON,"Verbose build")
	$(call $(flag_action),CMAKE_C_FLAGS,"$(CFLAGS)","C flags")
	$(call $(flag_action),CMAKE_CXX_FLAGS,"$(CFLAGS)","C++ flags")
	$(call $(flag_action),CMAKE_SKIP_BOOTSTRAP_TEST,ON,"Skip BootstrapTest")
	$(call $(flag_action),BUILD_CursesDialog,ON,"Build curses GUI")
	$(call $(flag_action),BUILD_QtDialog,ON,"Build Qt4 GUI")
#	$(call $(flag_action),BUILD_DOCUMENTATION,ON)
	$(call $(flag_action),CMAKE_USE_SYSTEM_LIBARCHIVE,ON)
	$(call $(flag_action),CMAKE_USE_SYSTEM_BZIP2,ON)

$(BUILD_FLAGS_FILE): flag_action := set_build_flag
verify-build-flags: flag_action := verify_build_flag
.PHONY: verify-build-flags

override_dh_auto_configure: $(BUILD_FLAGS_FILE)
	rm -rf Build && mkdir -p Build
	cd Build && ../bootstrap --prefix=/usr --docdir=/share/doc/cmake --mandir=/share/man \
	                         --init=../$(BUILD_FLAGS_FILE) --system-libs $(CONFIGURE_PARALLEL) \
	                         $(BOOTSTRAP_PARALLEL) --verbose

override_dh_auto_test:
	HOME="`pwd`/Build" dh_auto_test -- ARGS="-E CTestTestUpload"

override_dh_auto_clean:
	dh_auto_clean
	rm -f $(BUILD_FLAGS_FILE)

override_dh_installdocs:
	dh_installdocs --link-doc=cmake-data

%:
	dh $@ --parallel --builddirectory=Build --dbg-package=cmake-dbg

.PHONY: override_dh_auto_configure override_dh_auto_clean