$NetBSD: patch-aa,v 1.3 2009/07/21 20:23:55 brook Exp $

--- configure.orig	2005-03-13 20:23:07.000000000 +0100
+++ configure
@@ -2608,7 +2608,7 @@
       conftest$ac_exeext conftest.$ac_ext
 if test "$ac_cv_search_pnm_readpnminit" = no; then
   for ac_lib in netpbm pnm; do
-    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+    LIBS="-l$ac_lib -lm $ac_func_search_save_LIBS"
     cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -2653,7 +2653,7 @@
   ac_status=$?
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
-  ac_cv_search_pnm_readpnminit="-l$ac_lib"
+  ac_cv_search_pnm_readpnminit="-l$ac_lib -lm"
 break
 else
   echo "$as_me: failed program was:" >&5