FT8 support: build fixes

CMakeLists.txt

@@ -260,6 +260,7 @@ if(${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
   endif()
   configure_file("${CMAKE_SOURCE_DIR}/cmake/cpack/${CMAKE_PROJECT_NAME}.desktop.in"
     "${CMAKE_BINARY_DIR}/${CMAKE_PROJECT_NAME}.desktop" @ONLY)
+  set(FFTW3F_FOUND ON CACHE INTERNAL "")
 elseif(APPLE)
   if("${CMAKE_OSX_DEPLOYMENT_TARGET}" STREQUAL "")
     message(STATUS "Build for macOS target: local version")
@@ -777,15 +778,17 @@ add_subdirectory(logging)
 add_subdirectory(qrtplib)
 add_subdirectory(swagger)
 add_subdirectory(devices)
-add_subdirectory(sdrbench)
 
 add_subdirectory(modemm17)
 
 if (FFTW3F_FOUND)
     add_subdirectory(ft8)
     add_definitions(-DHAS_FT8)
+    set(FT8_SUPPORT ON CACHE INTERNAL "")
 endif()
 
+add_subdirectory(sdrbench)
+
 if (BUILD_GUI)
     add_subdirectory(sdrgui)
     add_subdirectory(plugins plugins)

sdrbench/CMakeLists.txt

@@ -1,5 +1,9 @@
 project (sdrbench)
 
+if (FT8_SUPPORT)
+    set(sdrbench_FT8_LIB ft8)
+endif()
+
 set(sdrbench_SOURCES
     mainbench.cpp
     parserbench.cpp
@@ -30,7 +34,7 @@ target_link_libraries(sdrbench
     Qt::Gui
     sdrbase
     logging
-    ft8
+    ${sdrbench_FT8_LIB}
 )
 
 install(TARGETS sdrbench DESTINATION ${INSTALL_LIB_DIR})