From 3477f41198ec5c079c8fcc2138630a9497b6b3de Mon Sep 17 00:00:00 2001
From: Carles Fernandez <carles.fernandez@gmail.com>
Date: Wed, 7 Nov 2018 19:27:26 +0100
Subject: [PATCH] Add local definition of to_time_t to be compatible with Boost
 < 1.58

---
 src/algorithms/PVT/gnuradio_blocks/rtklib_pvt_cc.cc | 5 ++---
 src/algorithms/PVT/gnuradio_blocks/rtklib_pvt_cc.h  | 7 +++++++
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/algorithms/PVT/gnuradio_blocks/rtklib_pvt_cc.cc b/src/algorithms/PVT/gnuradio_blocks/rtklib_pvt_cc.cc
index 98202bb68..762a36f1c 100644
--- a/src/algorithms/PVT/gnuradio_blocks/rtklib_pvt_cc.cc
+++ b/src/algorithms/PVT/gnuradio_blocks/rtklib_pvt_cc.cc
@@ -36,7 +36,6 @@
 #include "gnss_sdr_create_directory.h"
 #include <boost/archive/xml_oarchive.hpp>
 #include <boost/archive/xml_iarchive.hpp>
-#include <boost/date_time/posix_time/posix_time.hpp>
 #include <boost/exception/all.hpp>
 #include <boost/filesystem/path.hpp>
 #include <boost/serialization/map.hpp>
@@ -47,7 +46,6 @@
 #include <iostream>
 #include <map>
 #include <exception>
-#include <boost/date_time/posix_time/conversion.hpp>
 #if OLD_BOOST
 #include <boost/math/common_factor_rt.hpp>
 namespace bc = boost::math;
@@ -909,7 +907,7 @@ bool rtklib_pvt_cc::get_latest_PVT(double* longitude_deg,
             *height_m = d_ls_pvt->get_height();
             *ground_speed_kmh = d_ls_pvt->get_speed_over_ground() * 3600.0 / 1000.0;
             *course_over_ground_deg = d_ls_pvt->get_course_over_ground();
-            *UTC_time = boost::posix_time::to_time_t(d_ls_pvt->get_position_UTC_time());
+            *UTC_time = to_time_t(d_ls_pvt->get_position_UTC_time());
 
             return true;
         }
@@ -919,6 +917,7 @@ bool rtklib_pvt_cc::get_latest_PVT(double* longitude_deg,
         }
 }
 
+
 int rtklib_pvt_cc::work(int noutput_items, gr_vector_const_void_star& input_items,
     gr_vector_void_star& output_items __attribute__((unused)))
 {
diff --git a/src/algorithms/PVT/gnuradio_blocks/rtklib_pvt_cc.h b/src/algorithms/PVT/gnuradio_blocks/rtklib_pvt_cc.h
index bf53bfd3d..c26f923d4 100644
--- a/src/algorithms/PVT/gnuradio_blocks/rtklib_pvt_cc.h
+++ b/src/algorithms/PVT/gnuradio_blocks/rtklib_pvt_cc.h
@@ -40,6 +40,8 @@
 #include "rtcm_printer.h"
 #include "pvt_conf.h"
 #include "rtklib_solver.h"
+#include <boost/date_time/posix_time/posix_time.hpp>
+#include <boost/date_time/gregorian/gregorian.hpp>
 #include <gnuradio/sync_block.h>
 #include <sys/types.h>
 #include <sys/ipc.h>
@@ -135,6 +137,11 @@ private:
     bool d_xml_storage;
     std::string xml_base_path;
 
+    inline std::time_t to_time_t(boost::posix_time::ptime pt)
+    {
+        return (pt - boost::posix_time::ptime(boost::gregorian::date(1970, 1, 1))).total_seconds();
+    }
+
 
 public:
     rtklib_pvt_cc(uint32_t nchannels,