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

Build with newer Boost. From Fedora.

Index: gr-digital/lib/chunks_to_symbols_impl.cc
--- gr-digital/lib/chunks_to_symbols_impl.cc.orig
+++ gr-digital/lib/chunks_to_symbols_impl.cc
@@ -32,6 +32,8 @@
 namespace gr {
 namespace digital {
 
+using namespace boost::placeholders;
+
 template <class IN_T, class OUT_T>
 typename chunks_to_symbols<IN_T, OUT_T>::sptr
 chunks_to_symbols<IN_T, OUT_T>::make(const std::vector<OUT_T>& symbol_table, const int D)
