abuild: use $builddir in default_prepare only if it exists

1 files changed, 2 insertions, 1 deletions

diff --git a/abuild.in b/abuild.in
index 6d93e1f..5c6f229 100644
--- a/abuild.in
+++ b/abuild.in
@@ -587,10 +587,11 @@ have_patches() {
 
 default_prepare() {
 	local i
-	cd "$builddir" || { error "Is \$builddir set correctly?"; return 1; }
+	[ -n "$builddir" -a -d "$builddir" ] && cd "$builddir"
 	if ! have_patches; then
 		return 0
 	fi
+	[ -d "$builddir" ] || { error "Is \$builddir set correctly?"; return 1; }
 	for i in $source; do
 		case ${i%::*} in
 			*.patch)