$NetBSD: patch-src_libbacktrace_configure,v 1.1 2017/11/16 19:48:24 jperkin Exp $

Use pkgsrc libtool.

--- src/libbacktrace/configure.orig	2017-10-09 20:04:51.000000000 +0000
+++ src/libbacktrace/configure
@@ -7783,7 +7783,7 @@ fi
 LIBTOOL_DEPS="$ltmain"
 
 # Always use our own libtool.
-LIBTOOL='$(SHELL) $(top_builddir)/libtool'
+LIBTOOL='libtool'
 
 
 
