$NetBSD: patch-configure,v 1.1 2023/11/19 13:00:26 bacon Exp $

Added NetBSD support. The main reason for this is that it prevents
DLLIBS from getting set to "-ldl" in the Makefile.

--- configure.orig	2023-03-09 11:57:59.000000000 +0000
+++ configure
@@ -115,6 +115,14 @@ case $targetos in
     ptsname="no"
     dllibs=
     ;;
+  NetBSD)
+    extralibs="-lm"
+    make="gmake"
+    doc="no"
+    plugins="no"
+    ptsname="no"
+    dllibs=
+    ;;
   FreeBSD)
     extralibs="-lm"
     make="gmake"