configure: Convert --with-l26=<dir> argument to absolute path.

[sliver-openvswitch.git] / acinclude.m4

diff --git a/acinclude.m4 b/acinclude.m4
index abbc57e..81e9948 100644 (file)
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -24,6 +24,10 @@ AC_DEFUN([OVS_CHECK_LINUX26], [
               [KBUILD26="$withval"], [KBUILD26=])dnl
   if test -n "$KBUILD26"; then
     KBUILD26=`eval echo "$KBUILD26"`
+    case $KBUILD26 in
+        /*) ;;
+        *) KBUILD26=`pwd`/$KBUILD26 ;;
+    esac
 
     # The build directory is what the user provided.
     # Make sure that it exists.