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-rw-r--r--configure.in2
1 files changed, 1 insertions, 1 deletions
diff --git a/configure.in b/configure.in
index cd9de13063..da1853bdf0 100644
--- a/configure.in
+++ b/configure.in
@@ -78,7 +78,7 @@ AC_ARG_ENABLE(add-ons, dnl
 	      [add_ons=])
 AC_CONFIG_SUBDIRS($add_ons)
 add_ons_pfx=
-if test x$add_ons != x; then
+if test x"$add_ons" != x; then
   for f in $add_ons; do
     add_ons_pfx="$add_ons_pfx $f/"
   done