#!/usr/bin/make -f

SONAME=liblbfgsb.so.0

# Enable hardening, but remove pie flag since we're building a shared
# object.  See also
# https://lists.debian.org/debian-devel/2013/01/msg00225.html.
MAINTOPTS = hardening=+all,-pie
FCFLAGS:=$(shell DEB_BUILD_MAINT_OPTIONS=$(MAINTOPTS) dpkg-buildflags --get FCFLAGS)
LDFLAGS:=$(shell DEB_BUILD_MAINT_OPTIONS=$(MAINTOPTS) dpkg-buildflags --get LDFLAGS)

MAINTOPTS_EX = hardening=+all
FCFLAGS_EX:=$(shell DEB_BUILD_MAINT_OPTIONS=$(MAINTOPTS_EX) dpkg-buildflags --get FCFLAGS)
LDFLAGS_EX:=$(shell DEB_BUILD_MAINT_OPTIONS=$(MAINTOPTS_EX) dpkg-buildflags --get LDFLAGS)

%:
	dh $@

override_dh_auto_build:
	mkdir -p build
	gfortran $(FCFLAGS) -fPIC -o build/lbfgsb.o -c lbfgsb.f
	gfortran $(FCFLAGS) -fPIC -o build/timer.o -c timer.f
	gfortran $(FCFLAGS) -shared $(LDFLAGS) -Wl,-soname,$(SONAME) \
		 -o build/$(SONAME) build/lbfgsb.o build/timer.o \
		 -lblas -llapack
	ar cr build/liblbfgsb.a build/lbfgsb.o build/timer.o
	ln -s $(SONAME) build/liblbfgsb.so

	gfortran $(FCFLAGS_EX) $(LDFLAGS_EX) \
	         -o build/lbfgsb-examples_driver1_77 driver1.f -llbfgsb -Lbuild
	gfortran $(FCFLAGS_EX) $(LDFLAGS_EX) \
	         -o build/lbfgsb-examples_driver1_90 driver1.f90 -llbfgsb -Lbuild
	gfortran $(FCFLAGS_EX) $(LDFLAGS_EX) \
	         -o build/lbfgsb-examples_driver2_77 driver2.f -llbfgsb -Lbuild
	gfortran $(FCFLAGS_EX) $(LDFLAGS_EX) \
	         -o build/lbfgsb-examples_driver2_90 driver2.f90 -llbfgsb -Lbuild
	gfortran $(FCFLAGS_EX) $(LDFLAGS_EX) \
	         -o build/lbfgsb-examples_driver3_77 driver3.f -llbfgsb -Lbuild
	gfortran $(FCFLAGS_EX) $(LDFLAGS_EX) \
	         -o build/lbfgsb-examples_driver3_90 driver3.f90 -llbfgsb -Lbuild

override_dh_auto_clean:
	rm -rf build
	dh_auto_clean

override_dh_compress:
	dh_compress -X.pdf -X.f -X.f90 -Xoutput_