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# -*- mode: makefile; coding: utf-8 -*-
# Copyright © 2002,2003 Colin Walters <walters@debian.org>
# Copyright © 2011-2012, 2014, 2016-2017 Jonas Smedegaard <dr@jones.dk>
# Description: Sets core language variables, such as CFLAGS and CXXFLAGS
#
# This program 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, 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/>.
#PATH_RULES#
ifndef _cdbs_class_langcore
_cdbs_class_langcore = 1
include $(_cdbs_rules_path)/buildvars.mk$(_cdbs_makefile_suffix)
# Resolve our defaults
# GNU Make doesn't export current environment in $(shell ..) function.
# We need at least some of the DEB_* flags for dpkg-buildflags, so
# extract them from the defined variables. Sadly there seems to be no
# way to just get all exported variables.
#
# massage dpkg-buildflag output:
# * filter to include only lines matching expected format
# * transform prefix, e.g. "export LDFLAGS := ..." -> "LDFLAGS ?= ..."
$(shell \
$(call cdbs_set_nondefaultvars,\
$(foreach flag,$(shell dpkg-buildflags --list),\
$(foreach op,SET STRIP APPEND PREPEND,\
DEB_$(flag)_$(op) DEB_$(flag)_MAINT_$(op)))\
DEB_BUILD_OPTIONS DEB_BUILD_MAINT_OPTIONS) \
dpkg-buildflags --export=make \
| perl -pe 's/^export\s+//; s/:=/?=/' \
> debian/_cdbs_buildflags.mk )
-include debian/_cdbs_buildflags.mk
$(shell rm -f debian/_cdbs_buildflags.mk)
$(eval $(and $(cdbs_crossbuild),$(filter default,$(origin CC)),\
CC := $(DEB_HOST_GNU_TYPE)-gcc))
$(eval $(and $(cdbs_crossbuild),$(filter default,$(origin CXX)),\
CXX := $(DEB_HOST_GNU_TYPE)-g++))
ifneq (,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
DEB_PARALLEL_JOBS ?= $(patsubst parallel=%,%,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
endif
endif
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