[pacman-dev] [PATCH] Extend BUILDENV: Allow for supplemental scripts that enable build-time optimizations.

[Que Quotion]

Signed-off-by: Que Quotion <quequotion at bugmenot.com>
---
 scripts/Makefile.am                   |  2 ++
 scripts/libmakepkg/buildenv_ext.sh.in | 43 +++++++++++++++++++++++++++
 scripts/makepkg.sh.in                 |  3 ++
 3 files changed, 48 insertions(+)
 create mode 100644 scripts/libmakepkg/buildenv_ext.sh.in

diff --git a/scripts/Makefile.am b/scripts/Makefile.am
index 448057dc..094bca48 100644
--- a/scripts/Makefile.am
+++ b/scripts/Makefile.am
@@ -48,6 +48,7 @@ LIBMAKEPKGDIRS = \
 	lint_pkgbuild \
 	source \
 	tidy \
+	buildenv_ext \
 	util
 
 LIBMAKEPKG_IN = \
@@ -93,6 +94,7 @@ LIBMAKEPKG_IN = \
 	libmakepkg/tidy/staticlibs.sh \
 	libmakepkg/tidy/strip.sh \
 	libmakepkg/tidy/zipman.sh \
+	libmakepkg/buildenv_ext.sh \
 	libmakepkg/util.sh \
 	libmakepkg/util/message.sh \
 	libmakepkg/util/option.sh \
diff --git a/scripts/libmakepkg/buildenv_ext.sh.in b/scripts/libmakepkg/buildenv_ext.sh.in
new file mode 100644
index 00000000..72d5948a
--- /dev/null
+++ b/scripts/libmakepkg/buildenv_ext.sh.in
@@ -0,0 +1,43 @@
+#!/bin/bash
+#
+#   buildenv_ext.sh - addional functions for altering the build environment
+#   before compiliation
+#
+#   Copyright (c) 2015-2016 Pacman Development Team <pacman-dev at 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 "$LIBMAKEPKG_BUILDENV_EXT_SH" ]] && return
+LIBMAKEPKG_BUILDENV_EXT_SH=1
+
+LIBRARY=${LIBRARY:-'@libmakepkgdir@'}
+
+declare -a extra_buildopts
+
+for lib in "$LIBRARY/buildenv_ext/"*.sh; do
+	source "$lib"
+done
+
+readonly -a extra_buildopts
+
+
+buildenv_ext() {
+
+	# options that alter compilation parameters
+	for func in ${extra_buildopts[@]}; do
+		$func
+	done
+
+}
diff --git a/scripts/makepkg.sh.in b/scripts/makepkg.sh.in
index 02398cf8..8f4110f8 100644
--- a/scripts/makepkg.sh.in
+++ b/scripts/makepkg.sh.in
@@ -395,6 +395,9 @@ prepare_buildenv() {
 		fi
 		export DISTCC_HOSTS
 	fi
+
+	# Check for BUILDENV extensions, use any that are requested (check buildenv and PKGBUILD opts)
+	buildenv_ext
 }
 
 run_function_safe() {
-- 
2.17.0