add java cmake stuff from http://git.cryptomilk.org

1 files changed, 820 insertions, 0 deletions

diff --git a/java/cmake/UseJava.cmake b/java/cmake/UseJava.cmake
new file mode 100644
index 0000000..310ffde
--- /dev/null
+++ b/java/cmake/UseJava.cmake
@@ -0,0 +1,820 @@
+#
+# This file provides functions for Java support.
+#
+# Available Functions:
+#
+#   add_jar(TARGET_NAME SRC1 SRC2 .. SRCN RCS1 RCS2 .. RCSN)
+#
+#   This command creates a <TARGET_NAME>.jar. It compiles the given source
+#   files (SRC) and adds the given resource files (RCS) to the jar file.
+#   If only resource files are given then just a jar file is created.
+#
+#   Additional instructions:
+#       To add compile flags to the target you can set these flags with
+#       the following variable:
+#
+#           set(CMAKE_JAVA_COMPILE_FLAGS -nowarn)
+#
+#       To add a path or a jar file to the class path you can do this
+#       with the CMAKE_JAVA_INCLUDE_PATH variable.
+#
+#           set(CMAKE_JAVA_INCLUDE_PATH /usr/share/java/shibboleet.jar)
+#
+#       To use a different output name for the target you can set it with:
+#
+#           set(CMAKE_JAVA_TARGET_OUTPUT_NAME shibboleet.jar)
+#           add_jar(foobar foobar.java)
+#
+#       To add a VERSION to the target output name you can set it using
+#       CMAKE_JAVA_TARGET_VERSION. This will create a jar file with the name
+#       shibboleet-1.0.0.jar and will create a symlink shibboleet.jar pointing
+#       to the jar with the version information.
+#
+#           set(CMAKE_JAVA_TARGET_VERSION 1.2.0)
+#           add_jar(shibboleet shibbotleet.java)
+#
+#        If the target is a JNI library, utilize the following commands to
+#        create a JNI symbolic link:
+#
+#           set(CMAKE_JNI_TARGET TRUE)
+#           set(CMAKE_JAVA_TARGET_VERSION 1.2.0)
+#           add_jar(shibboleet shibbotleet.java)
+#           install_jar(shibboleet ${LIB_INSTALL_DIR}/shibboleet)
+#           install_jni_symlink(shibboleet ${JAVA_LIB_INSTALL_DIR})
+#
+#        If a single target needs to produce more than one jar from its
+#        java source code, to prevent the accumulation of duplicate class
+#        files in subsequent jars, set/reset CMAKE_JAR_CLASSES_PREFIX prior
+#        to calling the add_jar() function:
+#
+#           set(CMAKE_JAR_CLASSES_PREFIX com/redhat/foo)
+#           add_jar(foo foo.java)
+#
+#           set(CMAKE_JAR_CLASSES_PREFIX com/redhat/bar)
+#           add_jar(bar bar.java)
+#
+#
+#   Variables set:
+#       The add_jar() functions sets some variables which can be used in the
+#       same scope where add_jar() is called.
+#
+#       <target>_INSTALL_FILES      The files which should be installed. This
+#                                   is used by install_jar().
+#       <target>_JNI_SYMLINK        The JNI symlink which should be installed.
+#                                   This is used by install_jni_symlink().
+#       <target>_JAR_FILE           The location of the jar file so that you
+#                                   can include it.
+#       <target>_CLASS_DIR          The directory where the class files can be
+#                                   found. For example to use them with javah.
+#
+#    find_jar(
+#             <VAR>
+#             name | NAMES name1 [name2 ...]
+#             [PATHS path1 [path2 ... ENV var]]
+#             [VERSIONS version1 [version2]]
+#             [DOC "cache documentation string"]
+#            )
+#
+#    This command is used to find a full path to the named jar. A cache entry
+#    named by <VAR> is created to stor the result of this command. If the full
+#    path to a jar is found the result is stored in the variable and the search
+#    will not repeated unless the variable is cleared. If nothing is found, the
+#    result will be <VAR>-NOTFOUND, and the search will be attempted again next
+#    time find_jar is invoked with the same variable.
+#    The name of the full path to a file that is searched for is specified by
+#    the names listed after NAMES argument. Additional search locations can be
+#    specified after the PATHS argument. If you require special a version of a
+#    jar file you can specify it with the VERSIONS argument. The argument after
+#    DOC will be used for the documentation string in the cache.
+#
+#
+#    install_jar(TARGET_NAME DESTINATION)
+#
+#    This command installs the TARGET_NAME files to the given DESTINATION. It
+#    should be called in the same scope as add_jar() or it will fail.
+#
+#
+#    install_jni_symlink(TARGET_NAME DESTINATION)
+#
+#    This command installs the TARGET_NAME JNI symlinks to the given
+#    DESTINATION. It should be called in the same scope as add_jar()
+#    or it will fail.
+#
+#
+#    create_javadoc
+#
+#       Create jave documentation based on files or packages. For more details
+#       please read the javadoc manpage.
+#
+#       There are two main signatures for create_javadoc. The first signature
+#       works with package names on a path with source files:
+#
+#       create_javadoc(
+#                      <VAR>
+#                      PACKAGES pkg1 [pkg2 ...]
+#                      [SOURCEPATH <sourcepath>]
+#                      [CLASSPATH <classpath>]
+#                      [INSTALLPATH <install path>]
+#                      [DOCTITLE "the documentation title"]
+#                      [WINDOWTITLE "the title of the document"]
+#                      [AUTHOR TRUE|FALSE]
+#                      [USE TRUE|FALSE]
+#                      [VERSION TRUE|FALSE]
+#                     )
+#
+#       Example:
+#
+#       create_javadoc(my_example_doc
+#           PACKAGES com.exmaple.foo com.example.bar
+#           SOURCEPATH ${CMAKE_CURRENT_SOURCE_PATH}
+#           CLASSPATH ${CMAKE_JAVA_INCLUDE_PATH}
+#           WINDOWTITLE "My example"
+#           DOCTITLE "<h1>My example</h1>"
+#           AUTHOR TRUE
+#           USE TRUE
+#           VERSION TRUE
+#       )
+#
+#       The second signature for create_javadoc works on a given list of files.
+#
+#       create_javadoc(
+#                      <VAR>
+#                      FILES file1 [file2 ...]
+#                      [CLASSPATH <classpath>]
+#                      [INSTALLPATH <install path>]
+#                      [DOCTITLE "the documentation title"]
+#                      [WINDOWTITLE "the title of the document"]
+#                      [AUTHOR TRUE|FALSE]
+#                      [USE TRUE|FALSE]
+#                      [VERSION TRUE|FALSE]
+#                     )
+#
+#       Example:
+#
+#       create_javadoc(my_example_doc
+#           FILES ${example_SRCS}
+#           CLASSPATH ${CMAKE_JAVA_INCLUDE_PATH}
+#           WINDOWTITLE "My example"
+#           DOCTITLE "<h1>My example</h1>"
+#           AUTHOR TRUE
+#           USE TRUE
+#           VERSION TRUE
+#       )
+#
+#       Both signatures share most of the options. These options are the same
+#       as what you can find in the javadoc manpage. Please look at the manpage
+#       for CLASSPATH, DOCTITLE, WINDOWTITLE, AUTHOR, USE and VERSION.
+#
+#       The documentation will be by default installed to
+#
+#           ${CMAKE_INSTALL_PREFIX}/share/javadoc/<VAR>
+#
+#       if you don't set the INSTALLPATH.
+#
+#=============================================================================
+# Copyright 2010      Andreas schneider <asn@redhat.com>
+# Copyright 2010      Ben Boeckel <ben.boeckel@kitware.com>
+#
+# Distributed under the OSI-approved BSD License (the "License");
+# see accompanying file Copyright.txt for details.
+#
+# This software is distributed WITHOUT ANY WARRANTY; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the License for more information.
+#=============================================================================
+# (To distributed this file outside of CMake, substitute the full
+#  License text for the above reference.)
+
+function (__java_copy_file src dest comment)
+    add_custom_command(
+        OUTPUT  ${dest}
+        COMMAND cmake -E copy_if_different
+        ARGS    ${src}
+                ${dest}
+        DEPENDS ${src}
+        COMMENT ${comment})
+endfunction (__java_copy_file src dest comment)
+
+function(add_jar _TARGET_NAME)
+    set(_JAVA_SOURCE_FILES ${ARGN})
+
+    if (LIBRARY_OUTPUT_PATH)
+        set(CMAKE_JAVA_LIBRARY_OUTPUT_PATH ${LIBRARY_OUTPUT_PATH})
+    else (LIBRARY_OUTPUT_PATH)
+        set(CMAKE_JAVA_LIBRARY_OUTPUT_PATH ${CMAKE_CURRENT_BINARY_DIR})
+    endif (LIBRARY_OUTPUT_PATH)
+
+    set(CMAKE_JAVA_INCLUDE_PATH
+        ${CMAKE_JAVA_INCLUDE_PATH}
+        ${CMAKE_CURRENT_SOURCE_DIR}
+        ${CMAKE_JAVA_OBJECT_OUTPUT_PATH}
+        ${CMAKE_JAVA_LIBRARY_OUTPUT_PATH}
+    )
+
+    if (WIN32 AND NOT CYGWIN)
+        set(CMAKE_JAVA_INCLUDE_FLAG_SEP ";")
+    else (WIN32 AND NOT CYGWIN)
+        set(CMAKE_JAVA_INCLUDE_FLAG_SEP ":")
+    endif(WIN32 AND NOT CYGWIN)
+
+    foreach (JAVA_INCLUDE_DIR ${CMAKE_JAVA_INCLUDE_PATH})
+       set(CMAKE_JAVA_INCLUDE_PATH_FINAL "${CMAKE_JAVA_INCLUDE_PATH_FINAL}${CMAKE_JAVA_INCLUDE_FLAG_SEP}${JAVA_INCLUDE_DIR}")
+    endforeach(JAVA_INCLUDE_DIR)
+
+    set(CMAKE_JAVA_CLASS_OUTPUT_PATH "${CMAKE_CURRENT_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/${_TARGET_NAME}.dir")
+
+    set(_JAVA_TARGET_OUTPUT_NAME "${_TARGET_NAME}.jar")
+    if (CMAKE_JAVA_TARGET_OUTPUT_NAME AND CMAKE_JAVA_TARGET_VERSION)
+        set(_JAVA_TARGET_OUTPUT_NAME "${CMAKE_JAVA_TARGET_OUTPUT_NAME}-${CMAKE_JAVA_TARGET_VERSION}.jar")
+        set(_JAVA_TARGET_OUTPUT_LINK "${CMAKE_JAVA_TARGET_OUTPUT_NAME}.jar")
+    elseif (CMAKE_JAVA_TARGET_VERSION)
+        set(_JAVA_TARGET_OUTPUT_NAME "${_TARGET_NAME}-${CMAKE_JAVA_TARGET_VERSION}.jar")
+        set(_JAVA_TARGET_OUTPUT_LINK "${_TARGET_NAME}.jar")
+    elseif (CMAKE_JAVA_TARGET_OUTPUT_NAME)
+        set(_JAVA_TARGET_OUTPUT_NAME "${CMAKE_JAVA_TARGET_OUTPUT_NAME}.jar")
+    endif (CMAKE_JAVA_TARGET_OUTPUT_NAME AND CMAKE_JAVA_TARGET_VERSION)
+    # reset
+    set(CMAKE_JAVA_TARGET_OUTPUT_NAME)
+
+    set(_JAVA_CLASS_FILES)
+    set(_JAVA_COMPILE_FILES)
+    set(_JAVA_DEPENDS)
+    set(_JAVA_RESOURCE_FILES)
+    foreach(_JAVA_SOURCE_FILE ${_JAVA_SOURCE_FILES})
+        get_filename_component(_JAVA_EXT ${_JAVA_SOURCE_FILE} EXT)
+        get_filename_component(_JAVA_FILE ${_JAVA_SOURCE_FILE} NAME_WE)
+        get_filename_component(_JAVA_PATH ${_JAVA_SOURCE_FILE} PATH)
+        get_filename_component(_JAVA_FULL ${_JAVA_SOURCE_FILE} ABSOLUTE)
+
+        file(RELATIVE_PATH _JAVA_REL_BINARY_PATH ${CMAKE_CURRENT_BINARY_DIR} ${_JAVA_FULL})
+        file(RELATIVE_PATH _JAVA_REL_SOURCE_PATH ${CMAKE_CURRENT_SOURCE_DIR} ${_JAVA_FULL})
+        string(LENGTH ${_JAVA_REL_BINARY_PATH} _BIN_LEN)
+        string(LENGTH ${_JAVA_REL_SOURCE_PATH} _SRC_LEN)
+        if (${_BIN_LEN} LESS ${_SRC_LEN})
+            set(_JAVA_REL_PATH ${_JAVA_REL_BINARY_PATH})
+        else (${_BIN_LEN} LESS ${_SRC_LEN})
+            set(_JAVA_REL_PATH ${_JAVA_REL_SOURCE_PATH})
+        endif (${_BIN_LEN} LESS ${_SRC_LEN})
+        get_filename_component(_JAVA_REL_PATH ${_JAVA_REL_PATH} PATH)
+
+        if (_JAVA_EXT MATCHES ".java")
+            list(APPEND _JAVA_COMPILE_FILES ${_JAVA_SOURCE_FILE})
+            set(_JAVA_CLASS_FILE "${CMAKE_JAVA_CLASS_OUTPUT_PATH}/${_JAVA_REL_PATH}/${_JAVA_FILE}.class")
+            set(_JAVA_CLASS_FILES ${_JAVA_CLASS_FILES} ${_JAVA_CLASS_FILE})
+
+        elseif (_JAVA_EXT MATCHES ".jar")
+            list(APPEND CMAKE_JAVA_INCLUDE_PATH ${_JAVA_SOURCE_FILE})
+
+        elseif (_JAVA_EXT STREQUAL "")
+            list(APPEND CMAKE_JAVA_INCLUDE_PATH ${JAVA_JAR_TARGET_${_JAVA_SOURCE_FILE}} ${JAVA_JAR_TARGET_${_JAVA_SOURCE_FILE}_CLASSPATH})
+            list(APPEND _JAVA_DEPENDS ${JAVA_JAR_TARGET_${_JAVA_SOURCE_FILE}})
+
+        else (_JAVA_EXT MATCHES ".java")
+            __java_copy_file(${CMAKE_CURRENT_SOURCE_DIR}/${_JAVA_SOURCE_FILE}
+                             ${CMAKE_JAVA_CLASS_OUTPUT_PATH}/${_JAVA_SOURCE_FILE}
+                             "Copying ${_JAVA_SOURCE_FILE} to the build directory")
+            list(APPEND _JAVA_RESOURCE_FILES ${_JAVA_SOURCE_FILE})
+        endif (_JAVA_EXT MATCHES ".java")
+    endforeach(_JAVA_SOURCE_FILE)
+
+    # Check if we have a local UseJavaClassFilelist.cmake
+    if (EXISTS ${CMAKE_MODULE_PATH}/UseJavaClassFilelist.cmake)
+        set(_JAVA_CLASS_FILELIST_SCRIPT ${CMAKE_MODULE_PATH}/UseJavaClassFilelist.cmake)
+    elseif (EXISTS ${CMAKE_ROOT}/Modules/UseJavaClassFilelist.cmake)
+        set(_JAVA_CLASS_FILELIST_SCRIPT ${CMAKE_ROOT}/Modules/UseJavaClassFilelist.cmake)
+    endif (EXISTS ${CMAKE_MODULE_PATH}/UseJavaClassFilelist.cmake)
+
+    # create an empty java_class_filelist
+    file(WRITE ${CMAKE_JAVA_CLASS_OUTPUT_PATH}/java_class_filelist "")
+
+    # Check if we have a local UseJavaSymlinks.cmake
+    if (EXISTS ${CMAKE_MODULE_PATH}/UseJavaSymlinks.cmake)
+        set(_JAVA_SYMLINK_SCRIPT ${CMAKE_MODULE_PATH}/UseJavaSymlinks.cmake)
+    elseif (EXISTS ${CMAKE_ROOT}/Modules/UseJavaSymlinks.cmake)
+        set(_JAVA_SYMLINK_SCRIPT ${CMAKE_ROOT}/Modules/UseJavaSymlinks.cmake)
+    endif (EXISTS ${CMAKE_MODULE_PATH}/UseJavaSymlinks.cmake)
+
+    # Add the target and make sure we have the latest resource files.
+    add_custom_target(${_TARGET_NAME} ALL DEPENDS ${_JAVA_RESOURCE_FILES} ${_JAVA_DEPENDS})
+
+    if (_JAVA_COMPILE_FILES)
+        # Compile the java files and create a list of class files
+        add_custom_command(
+            TARGET ${_TARGET_NAME}
+            COMMAND ${CMAKE_Java_COMPILER}
+                ${CMAKE_JAVA_COMPILE_FLAGS}
+                -classpath ${CMAKE_JAVA_INCLUDE_PATH_FINAL}
+                -d ${CMAKE_JAVA_CLASS_OUTPUT_PATH}
+                ${_JAVA_COMPILE_FILES}
+            COMMAND ${CMAKE_COMMAND}
+                -DCMAKE_JAVA_CLASS_OUTPUT_PATH=${CMAKE_JAVA_CLASS_OUTPUT_PATH}
+                -DCMAKE_JAR_CLASSES_PREFIX="${CMAKE_JAR_CLASSES_PREFIX}"
+                -P ${_JAVA_CLASS_FILELIST_SCRIPT}
+            WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+            COMMENT "Building Java objects for ${_TARGET_NAME}.jar"
+        )
+    endif (_JAVA_COMPILE_FILES)
+
+    # create the jar file
+    if (CMAKE_JNI_TARGET)
+        add_custom_command(
+            TARGET ${_TARGET_NAME}
+            COMMAND ${CMAKE_Java_ARCHIVE}
+                -cf ${CMAKE_CURRENT_BINARY_DIR}/${_JAVA_TARGET_OUTPUT_NAME}
+                ${_JAVA_RESOURCE_FILES} @java_class_filelist
+            COMMAND ${CMAKE_COMMAND}
+                -D_JAVA_TARGET_DIR=${CMAKE_CURRENT_BINARY_DIR}
+                -D_JAVA_TARGET_OUTPUT_NAME=${_JAVA_TARGET_OUTPUT_NAME}
+                -D_JAVA_TARGET_OUTPUT_LINK=${_JAVA_TARGET_OUTPUT_LINK}
+                -P ${_JAVA_SYMLINK_SCRIPT}
+            COMMAND ${CMAKE_COMMAND}
+                -D_JAVA_TARGET_DIR=${CMAKE_CURRENT_BINARY_DIR}
+                -D_JAVA_TARGET_OUTPUT_NAME=${CMAKE_CURRENT_BINARY_DIR}/${_JAVA_TARGET_OUTPUT_NAME}
+                -D_JAVA_TARGET_OUTPUT_LINK=${_JAVA_TARGET_OUTPUT_LINK}
+                -P ${_JAVA_SYMLINK_SCRIPT}
+            WORKING_DIRECTORY ${CMAKE_JAVA_CLASS_OUTPUT_PATH}
+            COMMENT "Creating Java archive ${_JAVA_TARGET_OUTPUT_NAME}"
+        )
+    else ()
+        add_custom_command(
+            TARGET ${_TARGET_NAME}
+            COMMAND ${CMAKE_Java_ARCHIVE}
+                -cf ${CMAKE_CURRENT_BINARY_DIR}/${_JAVA_TARGET_OUTPUT_NAME}
+                ${_JAVA_RESOURCE_FILES} @java_class_filelist
+            COMMAND ${CMAKE_COMMAND}
+                -D_JAVA_TARGET_DIR=${CMAKE_CURRENT_BINARY_DIR}
+                -D_JAVA_TARGET_OUTPUT_NAME=${_JAVA_TARGET_OUTPUT_NAME}
+                -D_JAVA_TARGET_OUTPUT_LINK=${_JAVA_TARGET_OUTPUT_LINK}
+                -P ${_JAVA_SYMLINK_SCRIPT}
+            WORKING_DIRECTORY ${CMAKE_JAVA_CLASS_OUTPUT_PATH}
+            COMMENT "Creating Java archive ${_JAVA_TARGET_OUTPUT_NAME}"
+        )
+    endif (CMAKE_JNI_TARGET)
+
+    set(${_TARGET_NAME}_INSTALL_FILES
+        ${CMAKE_CURRENT_BINARY_DIR}/${_JAVA_TARGET_OUTPUT_NAME}
+        PARENT_SCOPE)
+    if (_JAVA_TARGET_OUTPUT_LINK)
+        set(${_TARGET_NAME}_INSTALL_FILES
+            ${CMAKE_CURRENT_BINARY_DIR}/${_JAVA_TARGET_OUTPUT_NAME}
+            ${CMAKE_CURRENT_BINARY_DIR}/${_JAVA_TARGET_OUTPUT_LINK}
+            PARENT_SCOPE)
+        if (CMAKE_JNI_TARGET)
+            set(${_TARGET_NAME}_JNI_SYMLINK
+                ${CMAKE_CURRENT_BINARY_DIR}/${_JAVA_TARGET_OUTPUT_LINK}
+                PARENT_SCOPE)
+        endif (CMAKE_JNI_TARGET)
+    endif (_JAVA_TARGET_OUTPUT_LINK)
+    set(${_TARGET_NAME}_JAR_FILE
+        ${CMAKE_CURRENT_BINARY_DIR}/${_JAVA_TARGET_OUTPUT_NAME} PARENT_SCOPE)
+    set(${_TARGET_NAME}_CLASS_DIR
+        ${CMAKE_JAVA_CLASS_OUTPUT_PATH}
+         PARENT_SCOPE)
+endfunction(add_jar)
+
+function(INSTALL_JAR _TARGET_NAME _DESTINATION)
+    if (${_TARGET_NAME}_INSTALL_FILES)
+        install(
+            FILES
+                ${${_TARGET_NAME}_INSTALL_FILES}
+            DESTINATION
+                ${_DESTINATION}
+        )
+    else (${_TARGET_NAME}_INSTALL_FILES)
+        message(SEND_ERROR "The target ${_TARGET_NAME} is not known in this scope.")
+    endif (${_TARGET_NAME}_INSTALL_FILES)
+endfunction(INSTALL_JAR _TARGET_NAME _DESTINATION)
+
+function(INSTALL_JNI_SYMLINK _TARGET_NAME _DESTINATION)
+    if (${_TARGET_NAME}_JNI_SYMLINK)
+        install(
+            FILES
+                ${${_TARGET_NAME}_JNI_SYMLINK}
+            DESTINATION
+                ${_DESTINATION}
+        )
+    else (${_TARGET_NAME}_JNI_SYMLINK)
+        message(SEND_ERROR "The target ${_TARGET_NAME} is not known in this scope.")
+    endif (${_TARGET_NAME}_JNI_SYMLINK)
+endfunction(INSTALL_JNI_SYMLINK _TARGET_NAME _DESTINATION)
+
+function (find_jar VARIABLE)
+    set(_jar_names)
+    set(_jar_files)
+    set(_jar_versions)
+    set(_jar_paths
+        /usr/share/java/
+        /usr/local/share/java/
+        ${Java_JAR_PATHS})
+    set(_jar_doc "NOTSET")
+
+    set(_state "name")
+
+    foreach (arg ${ARGN})
+        if (${_state} STREQUAL "name")
+            if (${arg} STREQUAL "VERSIONS")
+                set(_state "versions")
+            elseif (${arg} STREQUAL "NAMES")
+                set(_state "names")
+            elseif (${arg} STREQUAL "PATHS")
+                set(_state "paths")
+            elseif (${arg} STREQUAL "DOC")
+                set(_state "doc")
+            else (${arg} STREQUAL "NAMES")
+                set(_jar_names ${arg})
+                if (_jar_doc STREQUAL "NOTSET")
+                    set(_jar_doc "Finding ${arg} jar")
+                endif (_jar_doc STREQUAL "NOTSET")
+            endif (${arg} STREQUAL "VERSIONS")
+        elseif (${_state} STREQUAL "versions")
+            if (${arg} STREQUAL "NAMES")
+                set(_state "names")
+            elseif (${arg} STREQUAL "PATHS")
+                set(_state "paths")
+            elseif (${arg} STREQUAL "DOC")
+                set(_state "doc")
+            else (${arg} STREQUAL "NAMES")
+                set(_jar_versions ${_jar_versions} ${arg})
+            endif (${arg} STREQUAL "NAMES")
+        elseif (${_state} STREQUAL "names")
+            if (${arg} STREQUAL "VERSIONS")
+                set(_state "versions")
+            elseif (${arg} STREQUAL "PATHS")
+                set(_state "paths")
+            elseif (${arg} STREQUAL "DOC")
+                set(_state "doc")
+            else (${arg} STREQUAL "VERSIONS")
+                set(_jar_names ${_jar_names} ${arg})
+                if (_jar_doc STREQUAL "NOTSET")
+                    set(_jar_doc "Finding ${arg} jar")
+                endif (_jar_doc STREQUAL "NOTSET")
+            endif (${arg} STREQUAL "VERSIONS")
+        elseif (${_state} STREQUAL "paths")
+            if (${arg} STREQUAL "VERSIONS")
+                set(_state "versions")
+            elseif (${arg} STREQUAL "NAMES")
+                set(_state "names")
+            elseif (${arg} STREQUAL "DOC")
+                set(_state "doc")
+            else (${arg} STREQUAL "VERSIONS")
+                set(_jar_paths ${_jar_paths} ${arg})
+            endif (${arg} STREQUAL "VERSIONS")
+        elseif (${_state} STREQUAL "doc")
+            if (${arg} STREQUAL "VERSIONS")
+                set(_state "versions")
+            elseif (${arg} STREQUAL "NAMES")
+                set(_state "names")
+            elseif (${arg} STREQUAL "PATHS")
+                set(_state "paths")
+            else (${arg} STREQUAL "VERSIONS")
+                set(_jar_doc ${arg})
+            endif (${arg} STREQUAL "VERSIONS")
+        endif (${_state} STREQUAL "name")
+    endforeach (arg ${ARGN})
+
+    if (${_jar_names} STREQUAL "")
+        message(FATAL_ERROR "find_jar: No name to search for given")
+    endif (${_jar_names} STREQUAL "")
+
+    foreach (jar_name ${_jar_names})
+        foreach (version ${_jar_versions})
+            set(_jar_files ${_jar_files} ${jar_name}-${version}.jar)
+        endforeach (version ${_jar_versions})
+        set(_jar_files ${_jar_files} ${jar_name}.jar)
+    endforeach (jar_name ${_jar_names})
+
+    find_file(${VARIABLE}
+        NAMES   ${_jar_files}
+        PATHS   ${_jar_paths}
+        DOC     ${_jar_doc}
+        NO_DEFAULT_PATH)
+endfunction (find_jar VARIABLE)
+
+function(create_javadoc _target)
+    set(_javadoc_packages)
+    set(_javadoc_files)
+    set(_javadoc_sourcepath)
+    set(_javadoc_classpath)
+    set(_javadoc_installpath "${CMAKE_INSTALL_PREFIX}/share/javadoc")
+    set(_javadoc_doctitle)
+    set(_javadoc_windowtitle)
+    set(_javadoc_author FALSE)
+    set(_javadoc_version FALSE)
+    set(_javadoc_use FALSE)
+
+    set(_state "package")
+
+    foreach (arg ${ARGN})
+        if (${_state} STREQUAL "package")
+            if (${arg} STREQUAL "PACKAGES")
+                set(_state "packages")
+            elseif (${arg} STREQUAL "FILES")
+                set(_state "files")
+            elseif (${arg} STREQUAL "SOURCEPATH")
+                set(_state "sourcepath")
+            elseif (${arg} STREQUAL "CLASSPATH")
+                set(_state "classpath")
+            elseif (${arg} STREQUAL "INSTALLPATH")
+                set(_state "installpath")
+            elseif (${arg} STREQUAL "DOCTITLE")
+                set(_state "doctitle")
+            elseif (${arg} STREQUAL "WINDOWTITLE")
+                set(_state "windowtitle")
+            elseif (${arg} STREQUAL "AUTHOR")
+                set(_state "author")
+            elseif (${arg} STREQUAL "USE")
+                set(_state "use")
+            elseif (${arg} STREQUAL "VERSION")
+                set(_state "version")
+            else ()
+                set(_javadoc_packages ${arg})
+                set(_state "packages")
+            endif ()
+        elseif (${_state} STREQUAL "packages")
+            if (${arg} STREQUAL "FILES")
+                set(_state "files")
+            elseif (${arg} STREQUAL "SOURCEPATH")
+                set(_state "sourcepath")
+            elseif (${arg} STREQUAL "CLASSPATH")
+                set(_state "classpath")
+            elseif (${arg} STREQUAL "INSTALLPATH")
+                set(_state "installpath")
+            elseif (${arg} STREQUAL "DOCTITLE")
+                set(_state "doctitle")
+            elseif (${arg} STREQUAL "WINDOWTITLE")
+                set(_state "windowtitle")
+            elseif (${arg} STREQUAL "AUTHOR")
+                set(_state "author")
+            elseif (${arg} STREQUAL "USE")
+                set(_state "use")
+            elseif (${arg} STREQUAL "VERSION")
+                set(_state "version")
+            else ()
+                list(APPEND _javadoc_packages ${arg})
+            endif ()
+        elseif (${_state} STREQUAL "files")
+            if (${arg} STREQUAL "PACKAGES")
+                set(_state "packages")
+            elseif (${arg} STREQUAL "SOURCEPATH")
+                set(_state "sourcepath")
+            elseif (${arg} STREQUAL "CLASSPATH")
+                set(_state "classpath")
+            elseif (${arg} STREQUAL "INSTALLPATH")
+                set(_state "installpath")
+            elseif (${arg} STREQUAL "DOCTITLE")
+                set(_state "doctitle")
+            elseif (${arg} STREQUAL "WINDOWTITLE")
+                set(_state "windowtitle")
+            elseif (${arg} STREQUAL "AUTHOR")
+                set(_state "author")
+            elseif (${arg} STREQUAL "USE")
+                set(_state "use")
+            elseif (${arg} STREQUAL "VERSION")
+                set(_state "version")
+            else ()
+                list(APPEND _javadoc_files ${arg})
+            endif ()
+        elseif (${_state} STREQUAL "sourcepath")
+            if (${arg} STREQUAL "PACKAGES")
+                set(_state "packages")
+            elseif (${arg} STREQUAL "FILES")
+                set(_state "files")
+            elseif (${arg} STREQUAL "CLASSPATH")
+                set(_state "classpath")
+            elseif (${arg} STREQUAL "INSTALLPATH")
+                set(_state "installpath")
+            elseif (${arg} STREQUAL "DOCTITLE")
+                set(_state "doctitle")
+            elseif (${arg} STREQUAL "WINDOWTITLE")
+                set(_state "windowtitle")
+            elseif (${arg} STREQUAL "AUTHOR")
+                set(_state "author")
+            elseif (${arg} STREQUAL "USE")
+                set(_state "use")
+            elseif (${arg} STREQUAL "VERSION")
+                set(_state "version")
+            else ()
+                list(APPEND _javadoc_sourcepath ${arg})
+            endif ()
+        elseif (${_state} STREQUAL "classpath")
+            if (${arg} STREQUAL "PACKAGES")
+                set(_state "packages")
+            elseif (${arg} STREQUAL "FILES")
+                set(_state "files")
+            elseif (${arg} STREQUAL "SOURCEPATH")
+                set(_state "sourcepath")
+            elseif (${arg} STREQUAL "INSTALLPATH")
+                set(_state "installpath")
+            elseif (${arg} STREQUAL "DOCTITLE")
+                set(_state "doctitle")
+            elseif (${arg} STREQUAL "WINDOWTITLE")
+                set(_state "windowtitle")
+            elseif (${arg} STREQUAL "AUTHOR")
+                set(_state "author")
+            elseif (${arg} STREQUAL "USE")
+                set(_state "use")
+            elseif (${arg} STREQUAL "VERSION")
+                set(_state "version")
+            else ()
+                list(APPEND _javadoc_classpath ${arg})
+            endif ()
+        elseif (${_state} STREQUAL "installpath")
+            if (${arg} STREQUAL "PACKAGES")
+                set(_state "packages")
+            elseif (${arg} STREQUAL "FILES")
+                set(_state "files")
+            elseif (${arg} STREQUAL "SOURCEPATH")
+                set(_state "sourcepath")
+            elseif (${arg} STREQUAL "DOCTITLE")
+                set(_state "doctitle")
+            elseif (${arg} STREQUAL "WINDOWTITLE")
+                set(_state "windowtitle")
+            elseif (${arg} STREQUAL "AUTHOR")
+                set(_state "author")
+            elseif (${arg} STREQUAL "USE")
+                set(_state "use")
+            elseif (${arg} STREQUAL "VERSION")
+                set(_state "version")
+            else ()
+                set(_javadoc_installpath ${arg})
+            endif ()
+        elseif (${_state} STREQUAL "doctitle")
+            if (${arg} STREQUAL "PACKAGES")
+                set(_state "packages")
+            elseif (${arg} STREQUAL "FILES")
+                set(_state "files")
+            elseif (${arg} STREQUAL "SOURCEPATH")
+                set(_state "sourcepath")
+            elseif (${arg} STREQUAL "INSTALLPATH")
+                set(_state "installpath")
+            elseif (${arg} STREQUAL "CLASSPATH")
+                set(_state "classpath")
+            elseif (${arg} STREQUAL "WINDOWTITLE")
+                set(_state "windowtitle")
+            elseif (${arg} STREQUAL "AUTHOR")
+                set(_state "author")
+            elseif (${arg} STREQUAL "USE")
+                set(_state "use")
+            elseif (${arg} STREQUAL "VERSION")
+                set(_state "version")
+            else ()
+                set(_javadoc_doctitle ${arg})
+            endif ()
+        elseif (${_state} STREQUAL "windowtitle")
+            if (${arg} STREQUAL "PACKAGES")
+                set(_state "packages")
+            elseif (${arg} STREQUAL "FILES")
+                set(_state "files")
+            elseif (${arg} STREQUAL "SOURCEPATH")
+                set(_state "sourcepath")
+            elseif (${arg} STREQUAL "CLASSPATH")
+                set(_state "classpath")
+            elseif (${arg} STREQUAL "INSTALLPATH")
+                set(_state "installpath")
+            elseif (${arg} STREQUAL "DOCTITLE")
+                set(_state "doctitle")
+            elseif (${arg} STREQUAL "AUTHOR")
+                set(_state "author")
+            elseif (${arg} STREQUAL "USE")
+                set(_state "use")
+            elseif (${arg} STREQUAL "VERSION")
+                set(_state "version")
+            else ()
+                set(_javadoc_windowtitle ${arg})
+            endif ()
+        elseif (${_state} STREQUAL "author")
+            if (${arg} STREQUAL "PACKAGES")
+                set(_state "packages")
+            elseif (${arg} STREQUAL "FILES")
+                set(_state "files")
+            elseif (${arg} STREQUAL "SOURCEPATH")
+                set(_state "sourcepath")
+            elseif (${arg} STREQUAL "CLASSPATH")
+                set(_state "classpath")
+            elseif (${arg} STREQUAL "INSTALLPATH")
+                set(_state "installpath")
+            elseif (${arg} STREQUAL "DOCTITLE")
+                set(_state "doctitle")
+            elseif (${arg} STREQUAL "WINDOWTITLE")
+                set(_state "windowtitle")
+            elseif (${arg} STREQUAL "AUTHOR")
+                set(_state "author")
+            elseif (${arg} STREQUAL "USE")
+                set(_state "use")
+            elseif (${arg} STREQUAL "VERSION")
+                set(_state "version")
+            else ()
+                set(_javadoc_author ${arg})
+            endif ()
+        elseif (${_state} STREQUAL "use")
+            if (${arg} STREQUAL "PACKAGES")
+                set(_state "packages")
+            elseif (${arg} STREQUAL "FILES")
+                set(_state "files")
+            elseif (${arg} STREQUAL "SOURCEPATH")
+                set(_state "sourcepath")
+            elseif (${arg} STREQUAL "CLASSPATH")
+                set(_state "classpath")
+            elseif (${arg} STREQUAL "INSTALLPATH")
+                set(_state "installpath")
+            elseif (${arg} STREQUAL "DOCTITLE")
+                set(_state "doctitle")
+            elseif (${arg} STREQUAL "WINDOWTITLE")
+                set(_state "windowtitle")
+            elseif (${arg} STREQUAL "AUTHOR")
+                set(_state "author")
+            elseif (${arg} STREQUAL "USE")
+                set(_state "use")
+            elseif (${arg} STREQUAL "VERSION")
+                set(_state "version")
+            else ()
+                set(_javadoc_use ${arg})
+            endif ()
+        elseif (${_state} STREQUAL "version")
+            if (${arg} STREQUAL "PACKAGES")
+                set(_state "packages")
+            elseif (${arg} STREQUAL "FILES")
+                set(_state "files")
+            elseif (${arg} STREQUAL "SOURCEPATH")
+                set(_state "sourcepath")
+            elseif (${arg} STREQUAL "CLASSPATH")
+                set(_state "classpath")
+            elseif (${arg} STREQUAL "INSTALLPATH")
+                set(_state "installpath")
+            elseif (${arg} STREQUAL "DOCTITLE")
+                set(_state "doctitle")
+            elseif (${arg} STREQUAL "WINDOWTITLE")
+                set(_state "windowtitle")
+            elseif (${arg} STREQUAL "AUTHOR")
+                set(_state "author")
+            elseif (${arg} STREQUAL "USE")
+                set(_state "use")
+            elseif (${arg} STREQUAL "VERSION")
+                set(_state "version")
+            else ()
+                set(_javadoc_version ${arg})
+            endif ()
+        endif (${_state} STREQUAL "package")
+    endforeach (arg ${ARGN})
+
+    set(_javadoc_builddir ${CMAKE_CURRENT_BINARY_DIR}/javadoc/${_target})
+    set(_javadoc_options -d ${_javadoc_builddir})
+
+    if (_javadoc_sourcepath)
+        set(_start TRUE)
+        foreach(_path ${_javadoc_sourcepath})
+            if (_start)
+                set(_sourcepath ${_path})
+                set(_start FALSE)
+            else (_start)
+                set(_sourcepath ${_sourcepath}:${_path})
+            endif (_start)
+        endforeach(_path ${_javadoc_sourcepath})
+        set(_javadoc_options ${_javadoc_options} -sourcepath ${_sourcepath})
+    endif (_javadoc_sourcepath)
+
+    if (_javadoc_classpath)
+        set(_start TRUE)
+        foreach(_path ${_javadoc_classpath})
+            if (_start)
+                set(_classpath ${_path})
+                set(_start FALSE)
+            else (_start)
+                set(_classpath ${_classpath}:${_path})
+            endif (_start)
+        endforeach(_path ${_javadoc_classpath})
+        set(_javadoc_options ${_javadoc_options} -classpath ${_classpath})
+    endif (_javadoc_classpath)
+
+    if (_javadoc_doctitle)
+        set(_javadoc_options ${_javadoc_options} -doctitle '${_javadoc_doctitle}')
+    endif (_javadoc_doctitle)
+
+    if (_javadoc_windowtitle)
+        set(_javadoc_options ${_javadoc_options} -windowtitle '${_javadoc_windowtitle}')
+    endif (_javadoc_windowtitle)
+
+    if (_javadoc_author)
+        set(_javadoc_options ${_javadoc_options} -author)
+    endif (_javadoc_author)
+
+    if (_javadoc_use)
+        set(_javadoc_options ${_javadoc_options} -use)
+    endif (_javadoc_use)
+
+    if (_javadoc_version)
+        set(_javadoc_options ${_javadoc_options} -version)
+    endif (_javadoc_version)
+
+    add_custom_target(${_target}_javadoc ALL
+        COMMAND ${JAVA_DOC} ${_javadoc_options}
+                            ${_javadoc_files}
+                            ${_javadoc_packages}
+        WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+    )
+
+    install(
+        DIRECTORY ${_javadoc_builddir}
+        DESTINATION ${_javadoc_installpath}
+    )
+endfunction(create_javadoc)