Fix doxygen doc generation if C++ wrapper is not built

[libftdi] / ftdipp / CMakeLists.txt

# Check
set(FTDI_BUILD_CPP False PARENT_SCOPE)

option(FTDIPP "Build C++ binding library libftdi1++" ON)

# Targets
set(cpp_sources   ${CMAKE_CURRENT_SOURCE_DIR}/ftdi.cpp CACHE INTERNAL "List of cpp sources" )
set(cpp_headers   ${CMAKE_CURRENT_SOURCE_DIR}/ftdi.hpp CACHE INTERNAL "List of cpp headers" )
        
if (FTDIPP)

    if(Boost_FOUND)

        # Includes
        include_directories(BEFORE ${CMAKE_CURRENT_BINARY_DIR}
                            ${CMAKE_CURRENT_SOURCE_DIR}
                            ${CMAKE_SOURCE_DIR}/src)

        include_directories(${Boost_INCLUDE_DIRS})



        set(FTDI_BUILD_CPP True PARENT_SCOPE)
        message(STATUS "Building libftdi1++")

        # Shared library
        add_library(ftdipp1 SHARED ${cpp_sources})

        math(EXPR VERSION_FIXUP "${MAJOR_VERSION} + 1")    # Compatiblity with previous releases
        set_target_properties(ftdipp1 PROPERTIES VERSION ${VERSION_FIXUP}.${MINOR_VERSION}.0 SOVERSION 2)

        # Static library
        add_library(ftdipp1-static STATIC ${cpp_sources})
        set_target_properties(ftdipp1-static PROPERTIES OUTPUT_NAME "ftdipp1")

        # Prevent clobbering each other during the build
        set_target_properties(ftdipp1 PROPERTIES CLEAN_DIRECT_OUTPUT 1)
        set_target_properties(ftdipp1-static PROPERTIES CLEAN_DIRECT_OUTPUT 1)

        # Dependencies
        target_link_libraries(ftdipp1 ftdi1 ${LIBUSB_LIBRARIES} ${BOOST_LIBRARIES})

        # Install
        if(${UNIX})
            install( TARGETS ftdipp1
                        LIBRARY DESTINATION lib${LIB_SUFFIX}
                        COMPONENT sharedlibs
                        )
            install( TARGETS ftdipp1-static
                        ARCHIVE DESTINATION lib${LIB_SUFFIX}
                        COMPONENT staticlibs
                        )
            install( FILES ${cpp_headers}
                        DESTINATION include/${PROJECT_NAME}
                        COMPONENT headers
                        )
        endif(${UNIX})

        if(${WIN32})
            install( TARGETS ftdipp1
                        DESTINATION bin
                        COMPONENT sharedlibs
                        )
            install( TARGETS ftdipp1-static
                        DESTINATION bin
                        COMPONENT staticlibs
                        )
            install( FILES ${cpp_headers}
                        DESTINATION include/${PROJECT_NAME}
                        COMPONENT headers
                        )
        endif(${WIN32})

    else(Boost_FOUND)
        message(STATUS "Boost not found, won't build libftdi1++")
    endif(Boost_FOUND)

else(FTDIPP)

    message(STATUS "Not building libftdi1++")

endif(FTDIPP)