#!/usr/bin/make -f

##############
# Legal stuff
##############

# Copyright (c) 2003-2009 Ludovic Brenta <lbrenta@debian.org>
# Copyright (c) 2009-2016 Nicolas Boulenguez <nicolas@debian.org>

# This build script is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 3 of the
# License, or (at your option) any later version.

# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.

# On Debian systems, the full text of the GPL is in the file
# /usr/share/common-licenses/GPL-3.

######################
# Set some variables #
######################

DEB_BUILD_MAINT_OPTIONS=hardening=+all
include /usr/share/dpkg/default.mk
include /usr/share/ada/debian_packaging*.mk

DEB_DATE := $(shell dpkg-parsechangelog -S date)

LIB_NAME := $(patsubst lib%,%,$(DEB_SOURCE))

SOVERSION := $(shell sed -n "/^Package: lib$(LIB_NAME)\([[:digit:]]\+\)$$/{s//\1/;p;q}" debian/control)
ifndef SOVERSION
  $(warning Could not guess SOVERSION from debian/control)
endif

######################
# debhelper overrides
######################

# Uncomment this to turn on verbose mode.
# export DH_VERBOSE=1

POLICY_TARGETS := binary binary-arch binary-indep build build-arch	\
  build-indep clean
.PHONY: $(POLICY_TARGETS)
$(POLICY_TARGETS):
	dh $@ --with ada-library

.PHONY: $(addprefix override_dh_auto_, \
  configure-arch configure-indep build-arch build-indep install clean)

AUTOCONF_AUXILIARY_FILES := \
 config.guess \
 config.sub \
 configure \
 install-sh

override_dh_auto_configure-arch: $(addsuffix .backup,$(AUTOCONF_AUXILIARY_FILES))
 # tests: samples/* will be installed into the -doc package, and used
 # by autopkgtest, but there is no point in compiling them now.
	dh_auto_configure -a -- \
          $(foreach v,ADAFLAGS CC CFLAGS CPPFLAGS LDFLAGS,"$(v)=$($(v))") \
          --without-tests \
          --with-shared --with-ada-sharedlib=libncursesada.so.$(SOVERSION)
 # with-ada-compiler="gprbuild $(BUILDER_OPTIONS)" actually has no effect.
# Up-to-date config.[guess|sub] are provided by autotools-dev.
config.guess.backup config.sub.backup: %.backup:
	mv $* $@
	ln -s /usr/share/misc/$*
# configure: generated by autoconf.
configure.backup: %.backup:
	mv $* $@
	autoconf-dickey
# install-sh: unused, but configure insists on seeing it.
install-sh.backup: %.backup:
	mv $* $@
	touch $*

override_dh_auto_clean:
	rm -f debian/build-lib-dynamic/* \
              debian/build-obj-dynamic/* \
              debian/build-lib-static/* \
              debian/build-obj-static/*
	dh_auto_clean
	for f in $(AUTOCONF_AUXILIARY_FILES); do \
	  if test -f $$f.backup; then mv $$f.backup $$f; fi; \
        done

NCURSES_MODULES := form menu panel ncurses
NCURSES_CFLAGS  := `pkg-config --cflags $(NCURSES_MODULES)`
LDLIBS          := `pkg-config --libs $(NCURSES_MODULES)`
PROJECT := debian/$(LIB_NAME).gpr
GPR_VARS := ADAFLAGS CFLAGS CPPFLAGS LDFLAGS NCURSES_CFLAGS LDLIBS SOVERSION

# Circumvent what seems to be a bug in gen/Makefile.in.
# ACTUAL_LDFLAGS	= @ADAGEN_LDFLAGS@
# But ADAGEN_LDFLAGS is never defined.
override_dh_auto_build-arch: ACTUAL_LDFLAGS := $(LDFLAGS)

override_dh_auto_build-arch:
	dh_auto_build -a -- -C include ncurses_def.h
	dh_auto_build -a -- -C gen $(foreach v,ACTUAL_LDFLAGS LIB_NAME,"$(v)=$($(v))")
 # The src/ build system ignores CFLAGS when building two versions of
 # the library. We only call it to generate a needed file.
	dh_auto_build -a -- -C src terminal_interface-curses-trace.adb

 # Ensure deterministic timestamps in ALI files.
	find . -depth -name "*.ad[bs]" -a -newermt '$(DEB_DATE)' -print0 | \
	  xargs -0r touch --no-dereference --date='$(DEB_DATE)'

	gprbuild $(PROJECT) $(BUILDER_OPTIONS) -XKIND=static \
	  $(foreach v,$(GPR_VARS),"-X$(v)=$($(v))")
	gprbuild $(PROJECT) $(BUILDER_OPTIONS) -XKIND=dynamic \
	  $(foreach v,$(GPR_VARS),"-X$(v)=$($(v))")

######################################################################

.PHONY: override_dh_ada_library-arch override_dh_ada_library-indep
override_dh_ada_library-arch:
	dh_ada_library KIND=dynamic \
	  $(foreach v,$(GPR_VARS),"$(v)=$($(v))") $(PROJECT)

# doc/ provides a -config script giving build flags for
# reverse dependencies. We ignore it as per Debian Ada Policy
# we prefer project files. It also contains HTML pages
# generated from the sources (make -C gen html). We do not
# regenerate them either because we do not want to install
# arch-dependant files into the -doc package. The
# arch-specific parts are identified in the comments anyway.

######################################################################

.PHONY: override_dh_installchangelogs
override_dh_installchangelogs:
	dh_installchangelogs --all NEWS

# samples/explain.txt is read by samples/sample-explanation.adb.
.PHONY: override_dh_compress
override_dh_compress:
	dh_compress --all \
          --exclude=.ads \
          --exclude=.adb \
          --exclude=explain.txt
