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# Set up build environment
#
# Copyright (C) 2012 Patrick McDermott
#
# This file is part of opkbuild.
#
# opkbuild 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.
#
# opkbuild 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 opkbuild. If not, see <http://www.gnu.org/licenses/>.
set -eu
setup_build_helper()
{
local dep=
local dep_pkg=
IFS=', '
for dep in $(ob_get_source_parameter 'Build-Depends'); do
unset IFS
ob_parse_dep -P dep_pkg -- "${dep}" >/dev/null
if [ -r "${HELPERDIR}/${dep_pkg}" ]; then
. "${HELPERDIR}/${dep_pkg}"
PATH="${helper_path}:${PATH}"
fi
done
unset IFS
printf "PATH='%s'\n" "${PATH}"
return 0
}
setup_toolchain()
{
local tool_prefix=
# This check is done to allow at least native building on unsupported
# OSes. It may be removed in the future.
if [ x"${OPK_BUILD_ARCH}" != x"${OPK_HOST_ARCH}" ]; then
tool_prefix="${OPK_HOST_ARCH}-"
else
tool_prefix=''
fi
# Set toolchain environment variables.
# NB: This is written for GNU Binutils and GCC and won't work for, e.g.,
# LLVM.
cat <<-EOF
AR='${tool_prefix}ar'
AS='${tool_prefix}as'
CC='${tool_prefix}gcc'
CPP='${tool_prefix}cpp'
CXX='${tool_prefix}g++'
LD='${tool_prefix}ld'
NM='${tool_prefix}nm'
OBJCOPY='${tool_prefix}objcopy'
OBJDUMP='${tool_prefix}objdump'
RANLIB='${tool_prefix}ranlib'
READELF='${tool_prefix}readelf'
SIZE='${tool_prefix}size'
STRINGS='${tool_prefix}strings'
STRIP='${tool_prefix}strip'
OPK_TOOL_PREFIX='${tool_prefix}'
EOF
return 0
}
setup_build_flags()
{
local build_flags=
build_flags="$(ob_get_system_path 'buildflags' "${OPK_HOST_ARCH}")"
if [ -r "${build_flags}" ]; then
. "${build_flags}"
fi
printf "CFLAGS='%s %s'\\n" "${CFLAGS:-}" \
"-ffile-prefix-map=${PWD}=."
printf "CXXFLAGS='%s %s'\\n" "${CXXFLAGS:-}" \
"-ffile-prefix-map=${PWD}=."
return 0
}
main()
{
if ! ob_set_text_domain 'opkbuild'; then
printf '%s: Error: Failed to load locale messages\n' \
"${0##*/}" >&2
return 1
fi
ob_init_package '..' || return 1
ob_info "$(ob_get_msg 'setup_build_env')"
setup_build_helper
setup_toolchain
setup_build_flags
return 0
}
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