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/aur b/src/aur
index e4c535c..c9bc0cf 100755
--- a/src/aur
+++ b/src/aur
@@ -102,7 +102,7 @@ main() {
 			cd "$copy_new"
 		fi
 
-		. PKGBUILD
+		load_PKGBUILD
 
 		################################################################