Question

I am modifying a CMake file of an existing open source project written in C++ to try to link it to a SWIG Java interface file. The code I have pieced together from other forums and tinkering around is this :

    FIND_PACKAGE(SWIG REQUIRED)
    INCLUDE(${SWIG_USE_FILE})
    INCLUDE_DIRECTORIES(${JAVA_INCLUDE_PATH})
    INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR}/avogadro/src)
    SET(CMAKE_SWIG_FLAGS "")
    SET_SOURCE_FILES_PROPERTIES(mainwindow.i PROPERTIES CPLUSPLUS ON)
    SET_SOURCE_FILES_PROPERTIES(mainwindow.i PROPERTIES SWIG_FLAGS "-includeall")
    SWIG_ADD_MODULE(mainwindow java mainwindow.i mainwindow_wrap.c)
    SWIG_LINK_LIBRARIES(mainwindow ${JAVA_LIBRARIES})

Is there anything wrong with what I have written/found? When I run the cmake command, it builds. Yet when I run make -j3 (I need to do this to access the newly integrated libraries later on), it crashes, giving the very ambiguous error message “make: * [all] Error 2 “

Thanks!

Answer 1

I fixed my particular problem by adding the full path to the wrapper and interface files in the set source properties commands. To point it towards jni.h, I added FIND_PACKAGE(JNI REQUIRED) at the beginning.