Do not include sigmffilerecord if libsigmf is not available

cmake/Modules/FindLibSigMF.cmake

@@ -27,7 +27,7 @@ if (NOT LIBSIGMF_FOUND)
         set(LIBSIGMF_FOUND TRUE CACHE INTERNAL "libsigmf found")
         message(STATUS "Found libsigmf: ${LIBSIGMF_INCLUDE_DIR}, ${LIBSIGMF_LIBRARIES}")
     else (LIBSIGMF_INCLUDE_DIR AND LIBSIGMF_LIBRARIES)
-        set(LIBSIGMF_FOUND FALSE CACHE INTERNAL "libdsdcc found")
+        set(LIBSIGMF_FOUND FALSE CACHE INTERNAL "libsigmf found")
         message(STATUS "libsigmf not found.")
     endif (LIBSIGMF_INCLUDE_DIR AND LIBSIGMF_LIBRARIES)
 

sdrbase/CMakeLists.txt

@@ -51,6 +51,7 @@ if (LIBSIGMF_FOUND)
     )
     set(sdrbase_HEADERS
         ${sdrbase_HEADERS}
+        dsp/sigmf_forward.h
         dsp/sigmffilerecord.h
     )
     include_directories(${LIBSIGMF_INCLUDE_DIR})
@@ -136,7 +137,6 @@ set(sdrbase_SOURCES
     dsp/samplesimplefifo.cpp
     dsp/samplesourcefifo.cpp
     dsp/samplesourcefifodb.cpp
-    dsp/sigmffilerecord.cpp
     dsp/basebandsamplesink.cpp
     dsp/basebandsamplesource.cpp
     dsp/nullsink.cpp
@@ -305,8 +305,6 @@ set(sdrbase_HEADERS
     dsp/samplesimplefifo.h
     dsp/samplesourcefifo.h
     dsp/samplesourcefifodb.h
-    dsp/sigmf_forward.h
-    dsp/sigmffilerecord.h
     dsp/basebandsamplesink.h
     dsp/basebandsamplesource.h
     dsp/nullsink.h