$NetBSD: patch-ab,v 1.12 2006/01/03 08:03:53 recht Exp $

--- configure.orig	2005-12-22 18:35:26.000000000 +0100
+++ configure
@@ -2232,13 +2232,15 @@ _ACEOF
 		;;
 	*-*-*netbsd*)
 		platform_win32=no
-		CPPFLAGS="$CPPFLAGS -D_REENTRANT"
+		CPPFLAGS="$CPPFLAGS -D_REENTRANT -DGC_NETBSD_THREADS -D_GNU_SOURCE"
 		libmono_cflags="-D_REENTRANT"
 		LDFLAGS="$LDFLAGS -pthread"
 		libmono_ldflags="-pthread"
 		need_link_unlink=yes
-		libdl=
-		libgc_threads=no
+		libdl="-ldl /libexec/ld.elf_so"
+		libgc_threads=pthreads
+		with_tls=__thread
+		with_sigaltstack=yes
 		;;
 # these flags will work for all versions of -STABLE
 #
