Better fix for Boost Asio and string_view issue in macOS

CMakeLists.txt

@@ -690,6 +690,17 @@ if(CMAKE_VERSION VERSION_LESS 3.5)
     endif()
 endif()
 
+# Fix for Boost Asio < 1.70 when using Clang in macOS
+if(${Boost_VERSION} VERSION_LESS 107000)
+    # Check if we have std::string_view
+    include(CheckCXXSourceCompiles)
+    check_cxx_source_compiles("
+        #include <string_view>
+        int main()
+        { std::string_view sv; }"
+        has_string_view
+    )
+endif()
 
 
 ################################################################################

src/algorithms/PVT/libs/CMakeLists.txt

@@ -94,12 +94,20 @@ if(Boost_VERSION VERSION_GREATER "106599")
     )
 endif()
 
+# Fix for Boost Asio < 1.70
 if(OS_IS_MACOSX)
-    if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
+    if((CMAKE_CXX_COMPILER_ID MATCHES "Clang") AND (${Boost_VERSION} VERSION_LESS 107000))
+        if(${has_string_view})
             target_compile_definitions(pvt_libs
                 PUBLIC
-                -DBOOST_ASIO_HAS_STD_STRING_VIEW
+                    -DBOOST_ASIO_HAS_STD_STRING_VIEW=1
             )
+        else()
+            target_compile_definitions(pvt_libs
+                PUBLIC
+                    -DBOOST_ASIO_HAS_STD_STRING_VIEW=0
+            )
+        endif()
     endif()
 endif()
 

src/algorithms/signal_source/gnuradio_blocks/CMakeLists.txt

@@ -76,12 +76,20 @@ if(ENABLE_RAW_UDP AND PCAP_FOUND)
     )
 endif()
 
+# Fix for Boost Asio < 1.70
 if(OS_IS_MACOSX)
-    if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
+    if((CMAKE_CXX_COMPILER_ID MATCHES "Clang") AND (${Boost_VERSION} VERSION_LESS 107000))
+        if(${has_string_view})
             target_compile_definitions(signal_source_gr_blocks
                 PUBLIC
-                -DBOOST_ASIO_HAS_STD_STRING_VIEW
+                    -DBOOST_ASIO_HAS_STD_STRING_VIEW=1
             )
+        else()
+            target_compile_definitions(signal_source_gr_blocks
+                PUBLIC
+                    -DBOOST_ASIO_HAS_STD_STRING_VIEW=0
+            )
+        endif()
     endif()
 endif()
 

src/algorithms/tracking/libs/CMakeLists.txt

@@ -100,12 +100,20 @@ if(Boost_VERSION VERSION_GREATER "106599")
     )
 endif()
 
+# Fix for Boost Asio < 1.70
 if(OS_IS_MACOSX)
-    if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
+    if((CMAKE_CXX_COMPILER_ID MATCHES "Clang") AND (${Boost_VERSION} VERSION_LESS 107000))
+        if(${has_string_view})
             target_compile_definitions(tracking_libs
                 PUBLIC
-                -DBOOST_ASIO_HAS_STD_STRING_VIEW
+                    -DBOOST_ASIO_HAS_STD_STRING_VIEW=1
             )
+        else()
+            target_compile_definitions(tracking_libs
+                PUBLIC
+                    -DBOOST_ASIO_HAS_STD_STRING_VIEW=0
+            )
+        endif()
     endif()
 endif()
 

src/core/monitor/CMakeLists.txt

@@ -69,14 +69,22 @@ endif()
 
 
 if(OS_IS_MACOSX)
-    if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
+    if((CMAKE_CXX_COMPILER_ID MATCHES "Clang") AND (${Boost_VERSION} VERSION_LESS 107000))
+        if(${has_string_view})
             target_compile_definitions(core_monitor
                 PUBLIC
-                -DBOOST_ASIO_HAS_STD_STRING_VIEW
+                    -DBOOST_ASIO_HAS_STD_STRING_VIEW=1
+            )
+        else()
+            target_compile_definitions(core_monitor
+                PUBLIC
+                    -DBOOST_ASIO_HAS_STD_STRING_VIEW=0
             )
         endif()
+    endif()
 endif()
 
+
 if(ENABLE_CLANG_TIDY)
     if(CLANG_TIDY_EXE)
         set_target_properties(core_monitor

src/core/receiver/CMakeLists.txt

@@ -162,12 +162,20 @@ target_link_libraries(core_receiver
         pvt_adapters
 )
 
+# Fix for Boost Asio < 1.70
 if(OS_IS_MACOSX)
-    if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
+    if((CMAKE_CXX_COMPILER_ID MATCHES "Clang") AND (${Boost_VERSION} VERSION_LESS 107000))
+        if(${has_string_view})
             target_compile_definitions(core_receiver
                 PUBLIC
-                -DBOOST_ASIO_HAS_STD_STRING_VIEW
+                    -DBOOST_ASIO_HAS_STD_STRING_VIEW=1
             )
+        else()
+            target_compile_definitions(core_receiver
+                PUBLIC
+                    -DBOOST_ASIO_HAS_STD_STRING_VIEW=0
+            )
+        endif()
     endif()
 endif()