makepkg: use more schema.sh to clean the environment of special variables

Fixes "arch" and "checkdepends" never having been unset, fixes b2sums
(but not ${!b2sums_@}) being recently left out.
The "build" function used to be unset as well, explicitly unset it as a
function and do the same for other official functions as well.

Signed-off-by: Eli Schwartz <eschwartz@archlinux.org>
Signed-off-by: Allan McRae <allan@archlinux.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/scripts/makepkg.sh.in b/scripts/makepkg.sh.in
index fd06ce02..4559afec 100644
--- a/scripts/makepkg.sh.in
+++ b/scripts/makepkg.sh.in
@@ -1211,9 +1211,9 @@ else
 	fi
 fi
 
-unset pkgname pkgbase pkgver pkgrel epoch pkgdesc url license groups provides
-unset md5sums replaces depends conflicts backup source install changelog build
-unset sha{1,224,256,384,512}sums makedepends optdepends options noextract validpgpkeys
+unset pkgname "${pkgbuild_schema_strings[@]}" "${pkgbuild_schema_arrays[@]}"
+unset "${known_hash_algos[@]/%/sums}"
+unset -f pkgver prepare build check package "${!package_@}"
 unset "${!makedepends_@}" "${!depends_@}" "${!source_@}" "${!checkdepends_@}"
 unset "${!optdepends_@}" "${!conflicts_@}" "${!provides_@}" "${!replaces_@}"
 unset "${!md5sums_@}" "${!sha1sums_@}" "${!sha224sums_@}" "${!sha256sums_@}"