$NetBSD: patch-ae,v 1.1 2006/04/28 17:44:53 joerg Exp $

--- configure.orig	2006-04-28 17:04:02.000000000 +0000
+++ configure
@@ -6044,7 +6044,7 @@ fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 if test "$ac_cv_search_fftw_create_plan" = no; then
   for ac_lib in dfftw fftw; do
-    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+    LIBS="-l$ac_lib -lm $ac_func_search_save_LIBS"
     cat >conftest.$ac_ext <<_ACEOF
 #line $LINENO "configure"
 /* confdefs.h.  */