add {load,unset}_PKGBUILD to conf.sh, use it.

There are a bunch of caveats to loading a PKGBUILD file.  This way it is
all done correctly in one place.

unset_PKGBUILD unsets any functions and variables that are normally set in
a PKGBUILD.  The list is far more complete than any existing
implementation.

load_PKGBUILD loads the file given, or "./PKGBUILD" if none is given.  But
first it calls unset_PKGBUILD and then sets CARCH.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/treepkg b/src/treepkg
index 10bebcf..cdccc21 100755
--- a/src/treepkg
+++ b/src/treepkg
@@ -83,7 +83,7 @@ if [ ! -f PKGBUILD ]; then
 	exit 1
 fi
 
-if ! source PKGBUILD ; then
+if ! load_PKGBUILD ; then
 	error "Can't source PKGBUILD"
 	exit 1
 fi