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-rw-r--r--scripts/libmakepkg/buildenv/lto.sh.in37
-rw-r--r--scripts/libmakepkg/buildenv/meson.build1
2 files changed, 38 insertions, 0 deletions
diff --git a/scripts/libmakepkg/buildenv/lto.sh.in b/scripts/libmakepkg/buildenv/lto.sh.in
new file mode 100644
index 00000000..8e7be66a
--- /dev/null
+++ b/scripts/libmakepkg/buildenv/lto.sh.in
@@ -0,0 +1,37 @@
+#!/usr/bin/bash
+#
+# lto.sh - Specify flags for building a package with link-time
+# optimisation
+#
+# Copyright (c) 2021 Pacman Development Team <pacman-dev@archlinux.org>
+#
+# 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 2 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/>.
+#
+
+[[ -n "$LIBMAKEPKG_BUILDENV_LTO_SH" ]] && return
+LIBMAKEPKG_BUILDENV_LTO_SH=1
+
+LIBRARY=${LIBRARY:-'@libmakepkgdir@'}
+
+source "$LIBRARY/util/option.sh"
+
+build_options+=('lto')
+buildenv_functions+=('buildenv_lto')
+
+buildenv_lto() {
+ if check_option "lto" "y"; then
+ CFLAGS+=" -flto"
+ CXXFLAGS+=" -flto"
+ fi
+}
diff --git a/scripts/libmakepkg/buildenv/meson.build b/scripts/libmakepkg/buildenv/meson.build
index 34d4ba7b..b72d91c0 100644
--- a/scripts/libmakepkg/buildenv/meson.build
+++ b/scripts/libmakepkg/buildenv/meson.build
@@ -4,6 +4,7 @@ sources = [
'buildflags.sh.in',
'compiler.sh.in',
'debugflags.sh.in',
+ 'lto.sh.in',
'makeflags.sh.in',
]