4a0891f49d
Add the 'lto' option to enable building with link time optimization by adding '-flto' to both CFLAGS and CXXFLAGS. The 'lto' option can be specificed both in the PKGBUILD or by setting the default in makepkg.conf. Signed-off-by: Allan McRae <allan@archlinux.org>
37 lines
1.1 KiB
Bash
37 lines
1.1 KiB
Bash
#!/usr/bin/bash
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#
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# lto.sh - Specify flags for building a package with link-time
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# optimisation
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#
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# Copyright (c) 2021 Pacman Development Team <pacman-dev@archlinux.org>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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[[ -n "$LIBMAKEPKG_BUILDENV_LTO_SH" ]] && return
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LIBMAKEPKG_BUILDENV_LTO_SH=1
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LIBRARY=${LIBRARY:-'@libmakepkgdir@'}
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source "$LIBRARY/util/option.sh"
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build_options+=('lto')
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buildenv_functions+=('buildenv_lto')
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buildenv_lto() {
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if check_option "lto" "y"; then
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CFLAGS+=" -flto"
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CXXFLAGS+=" -flto"
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fi
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}
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