Reworked ARM Neon detection and remote plugins inclusion in the build

cmake/Modules/DetectArchitecture.cmake

@@ -196,8 +196,14 @@ if (ARCHITECTURE_ARM)
   endif()
 endif()
 
+# Extensions detection for ARM
+check_symbol_exists("__ARM_NEON" "" HAS_NEON)
+if (HAS_NEON)
+  message(STATUS "ARM Neon extensions enabled")
+  add_compile_definitions(USE_NEON)
+endif()
+
 # This is quite basic detection, can be extended if needed
-detect_extensions(ARM_NEON)
 detect_extensions(AVX512F)
 detect_extensions(AVX2 HAS_AVX512F)
 detect_extensions(AVX HAS_AVX2)

plugins/channelrx/CMakeLists.txt

@@ -18,9 +18,9 @@ if(LIBDSDCC_FOUND AND LIBMBE_FOUND)
     add_subdirectory(demoddsd)
 endif(LIBDSDCC_FOUND AND LIBMBE_FOUND)
 
-if(CM256CC_FOUND)
+if (CM256CC_FOUND AND (HAS_SSE3 OR HAS_NEON))
     add_subdirectory(remotesink)
-endif(CM256CC_FOUND)
+endif()
 
 if (CODEC2_FOUND)
     add_subdirectory(demodfreedv)

plugins/channelrx/remotesink/CMakeLists.txt

@@ -1,10 +1,5 @@
 project(remotesink)
 
-if (ARCHITECTURE_ARM64)
-    message(STATUS "Compiling RemoteSink for ARM64 with USE_NEON definition")
-    add_compile_definitions(USE_NEON)
-endif()
-
 set(remotesink_SOURCES
     remotesink.cpp
     remotesinkbaseband.cpp

plugins/channeltx/CMakeLists.txt

@@ -11,9 +11,9 @@ add_subdirectory(udpsource)
 add_subdirectory(localsource)
 add_subdirectory(filesource)
 
-if(CM256CC_FOUND)
+if (CM256CC_FOUND AND (HAS_SSE3 OR HAS_NEON))
     add_subdirectory(remotesource)
-endif(CM256CC_FOUND)
+endif()
 
 if (OpenCV_FOUND)
     add_subdirectory(modatv)

plugins/channeltx/remotesource/CMakeLists.txt

@@ -1,10 +1,5 @@
 project(remotesource)
 
-if (ARCHITECTURE_ARM64)
-    message(STATUS "Compiling RemoteSource for ARM64 with USE_NEON definition")
-    add_compile_definitions(USE_NEON)
-endif()
-
 set(remotesource_SOURCES
     remotesource.cpp
     remotesourcebaseband.cpp

plugins/samplesink/CMakeLists.txt

@@ -5,9 +5,9 @@ add_subdirectory(fileoutput)
 add_subdirectory(localoutput)
 add_subdirectory(audiooutput)
 
-if(CM256CC_FOUND)
+if (CM256CC_FOUND AND (HAS_SSE3 OR HAS_NEON))
     add_subdirectory(remoteoutput)
-endif(CM256CC_FOUND)
+endif()
 
 if(ENABLE_BLADERF AND LIBBLADERF_FOUND)
     add_subdirectory(bladerf1output)

plugins/samplesink/remoteoutput/CMakeLists.txt

@@ -1,10 +1,5 @@
 project(remoteoutput)
 
-if (ARCHITECTURE_ARM64)
-    message(STATUS "Compiling RemoteOutput for ARM64 with USE_NEON definition")
-    add_compile_definitions(USE_NEON)
-endif()
-
 set(remoteoutput_SOURCES
 	remoteoutput.cpp
 	remoteoutputplugin.cpp

plugins/samplesource/CMakeLists.txt

@@ -4,9 +4,9 @@ add_subdirectory(fileinput)
 add_subdirectory(testsource)
 add_subdirectory(localinput)
 
-if(CM256CC_FOUND)
+if (CM256CC_FOUND AND (HAS_SSE3 OR HAS_NEON))
     add_subdirectory(remoteinput)
-endif(CM256CC_FOUND)
+endif()
 
 if(ENABLE_AIRSPY AND LIBAIRSPY_FOUND)
     add_subdirectory(airspy)

plugins/samplesource/remoteinput/CMakeLists.txt

@@ -1,10 +1,5 @@
 project(remoteinput)
 
-if (ARCHITECTURE_ARM64)
-    message(STATUS "Compiling RemoteInput for ARM64 with USE_NEON definition")
-    add_compile_definitions(USE_NEON)
-endif()
-
 set(remoteinput_SOURCES
     remoteinputbuffer.cpp
     remoteinputudphandler.cpp