$OpenBSD: patch-gr-filter_lib_mmse_resampler_ff_impl_cc,v 1.1 2021/03/18 19:51:44 rsadowski Exp $

Build with newer Boost. From Fedora.

Index: gr-filter/lib/mmse_resampler_ff_impl.cc
--- gr-filter/lib/mmse_resampler_ff_impl.cc.orig
+++ gr-filter/lib/mmse_resampler_ff_impl.cc
@@ -31,6 +31,8 @@
 namespace gr {
 namespace filter {
 
+using namespace boost::placeholders;
+
 mmse_resampler_ff::sptr mmse_resampler_ff::make(float phase_shift, float resamp_ratio)
 {
     return gnuradio::get_initial_sptr(
