--- mono/configure.in.orig	2007-10-11 21:05:59.000000000 +0200
+++ mono/configure.in	2007-10-11 23:44:23.000000000 +0200
@@ -1148,6 +1148,8 @@
 		], [
 				AC_MSG_RESULT(no)
 				with_tls=pthread
+		], [
+				AC_MSG_RESULT(yes)
 		])
 	fi
 
@@ -1250,6 +1252,9 @@
 		], [
 				with_sigaltstack=no
 				AC_MSG_RESULT(no)
+		], [
+				AC_MSG_RESULT(yes)
+				AC_DEFINE(HAVE_WORKING_SIGALTSTACK)
 		])
 	fi