Implement SigMF support only when compiled with GCC (libsigmf dependency). Implements #712

CMakeLists.txt

@@ -323,9 +323,9 @@ find_package(LibUSB REQUIRED)  # used by so many packages
 find_package(OpenCV OPTIONAL_COMPONENTS core highgui imgproc imgcodecs videoio) # channeltx/modatv
 find_package(LibSigMF) # SigMF recording files support
 
-if (LIBSIGMF_FOUND)
+if (LIBSIGMF_FOUND AND CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
     add_definitions(-DHAS_LIBSIGMF)
-endif (LIBSIGMF_FOUND)
+endif()
 
 # macOS compatibility
 if(APPLE)

plugins/channelrx/CMakeLists.txt

@@ -26,9 +26,9 @@ if (CODEC2_FOUND)
     add_subdirectory(demodfreedv)
 endif(CODEC2_FOUND)
 
-if (LIBSIGMF_FOUND)
+if (LIBSIGMF_FOUND AND CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
     add_subdirectory(sigmffilesink)
-endif(LIBSIGMF_FOUND)
+endif()
 
 if(NOT SERVER_MODE)
     add_subdirectory(chanalyzer)

plugins/samplesource/CMakeLists.txt

@@ -58,7 +58,7 @@ if(ENABLE_SOAPYSDR AND SOAPYSDR_FOUND)
     add_subdirectory(soapysdrinput)
 endif()
 
-if(LIBSIGMF_FOUND)
+if(LIBSIGMF_FOUND AND CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
     add_subdirectory(sigmffileinput)
 endif()
 

sdrbase/CMakeLists.txt

@@ -44,7 +44,7 @@ if (LIMESUITE_FOUND)
     set(sdrbase_LIMERFE_LIB ${LIMESUITE_LIBRARY})
 endif (LIMESUITE_FOUND)
 
-if (LIBSIGMF_FOUND)
+if (LIBSIGMF_FOUND AND CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
     set(sdrbase_SOURCES
         ${sdrbase_SOURCES}
         dsp/sigmffilerecord.cpp
@@ -56,7 +56,7 @@ if (LIBSIGMF_FOUND)
     )
     include_directories(${LIBSIGMF_INCLUDE_DIR})
     set(sdrbase_LIBSIGMF_LIB ${LIBSIGMF_LIBRARIES})
-endif (LIBSIGMF_FOUND)
+endif()
 
 # serialdv now required
 add_definitions(-DDSD_USE_SERIALDV)