$NetBSD$

--- configure.ac.orig	2007-08-15 21:17:47.000000000 +0200
+++ configure.ac
@@ -68,7 +68,7 @@ sdkdir=$(pkg-config --variable=sdkdir xo
 # Checks for header files.
 AC_HEADER_STDC
 
-if test "$DRI" != no; then
+if test "$DRI" = xauto; then
         AC_CHECK_FILE([${sdkdir}/dri.h],
                       [have_dri_h="yes"], [have_dri_h="no"])
         AC_CHECK_FILE([${sdkdir}/sarea.h],
