Add a common shared pointer definition

Makes transition to GNU Radio 3.9 API less verbose

src/algorithms/observables/gnuradio_blocks/CMakeLists.txt

@@ -48,6 +48,11 @@ target_link_libraries(obs_gr_blocks
         Matio::matio
 )
 
+target_include_directories(obs_gr_blocks
+    PUBLIC
+        ${CMAKE_SOURCE_DIR}/src/core/interfaces
+)
+
 if(GNURADIO_USES_STD_POINTERS)
     target_compile_definitions(obs_gr_blocks
         PUBLIC -DGNURADIO_USES_STD_POINTERS=1

src/algorithms/observables/gnuradio_blocks/hybrid_observables_gs.h

@@ -23,6 +23,7 @@
 #ifndef GNSS_SDR_HYBRID_OBSERVABLES_GS_H
 #define GNSS_SDR_HYBRID_OBSERVABLES_GS_H
 
+#include "gnss_block_interface.h"
 #include "obs_conf.h"
 #include <boost/circular_buffer.hpp>  // for boost::circular_buffer
 #include <gnuradio/block.h>           // for block
@@ -35,10 +36,6 @@
 #include <string>                     // for std::string
 #include <typeinfo>                   // for typeid
 #include <vector>                     // for std::vector
-#if GNURADIO_USES_STD_POINTERS
-#else
-#include <boost/shared_ptr.hpp>
-#endif
 
 /** \addtogroup Observables
  * \{ */
@@ -46,17 +43,14 @@
  * GNU Radio blocks for the computation of GNSS observables
  * \{ */
 
+
 class Gnss_Synchro;
 class hybrid_observables_gs;
 
 template <class T>
 class Gnss_circular_deque;
 
-#if GNURADIO_USES_STD_POINTERS
-using hybrid_observables_gs_sptr = std::shared_ptr<hybrid_observables_gs>;
-#else
-using hybrid_observables_gs_sptr = boost::shared_ptr<hybrid_observables_gs>;
-#endif
+using hybrid_observables_gs_sptr = gnss_shared_ptr<hybrid_observables_gs>;
 
 hybrid_observables_gs_sptr hybrid_observables_gs_make(const Obs_Conf& conf_);