#! /usr/bin/make -f

DEB_HOST_MULTIARCH     := $(shell dpkg-architecture -qDEB_HOST_MULTIARCH)
DEB_HOST_GNU_TYPE     := $(shell dpkg-architecture -qDEB_HOST_GNU_TYPE)
DEB_BUILD_GNU_TYPE     := $(shell dpkg-architecture -qDEB_BUILD_GNU_TYPE)

export LC_ALL=C

ifneq ($(DEB_BUILD_GNU_TYPE),$(DEB_HOST_GNU_TYPE))
   SET_PKG_CONFIG = PKG_CONFIG=$(DEB_HOST_GNU_TYPE)-pkg-config
   GCC = $(DEB_HOST_GNU_TYPE)-gcc
else
   GCC = gcc
endif

SYSTEM_LIBDIRS := $(shell for opt in '' $$($${CC-$(GCC)} -print-multi-lib | sed -n -e's/.*;@/-/p'); do \
     $(GCC) $$opt -print-search-dirs | sed -n -e's/^libraries: =//p' \
     | sed -e's/:/\n/g' | xargs -n1 readlink -f | grep -v 'gcc\|/[0-9.]\+$$'; \
    done | sort -u | tr '\n' : | sed 's/:$$//')

%:
	dh $@ --with autoreconf

override_dh_auto_configure:
	$(SET_PKG_CONFIG) ./configure --prefix=/usr \
		--build=$(DEB_BUILD_GNU_TYPE) \
		--host=$(DEB_HOST_GNU_TYPE) \
		--mandir=\$${prefix}/share/man \
		--infodir=\$${prefix}/share/info --disable-shared \
		--with-pc-path=/usr/local/lib/$(DEB_HOST_MULTIARCH)/pkgconfig:/usr/local/lib/pkgconfig:/usr/local/share/pkgconfig:/usr/lib/$(DEB_HOST_MULTIARCH)/pkgconfig:/usr/lib/pkgconfig:/usr/share/pkgconfig \
		--with-system-library-path=$(SYSTEM_LIBDIRS)

override_dh_auto_clean:
	[ ! -f Makefile ] || $(MAKE) distclean DIST_SUBDIRS="check"
	chmod +x debian/pkg-config-crosswrapper debian/pkg-config-dpkghook

override_dh_install:
	dh_install
	echo $(DEB_HOST_MULTIARCH) > debian/pkg-config/usr/lib/pkg-config.multiarch