ACGCommon.cmake 35.1 KB
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if (EXISTS ${CMAKE_SOURCE_DIR}/${CMAKE_PROJECT_NAME}.cmake)
  include (${CMAKE_SOURCE_DIR}/${CMAKE_PROJECT_NAME}.cmake)
endif ()

# prevent build in source directory
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# add option to disable plugin build
option (
  BLOCK_IN_SOURCE_BUILD
  "Disable building inside the source tree"
  ON
)

if ( BLOCK_IN_SOURCE_BUILD )
  if ("${CMAKE_BINARY_DIR}" STREQUAL "${CMAKE_SOURCE_DIR}")
      message (SEND_ERROR "Building in the source directory is not supported.")
      message (FATAL_ERROR "Please remove the created \"CMakeCache.txt\" file, the \"CMakeFiles\" directory and create a build directory and call \"${CMAKE_COMMAND} <path to the sources>\".")
  endif ("${CMAKE_BINARY_DIR}" STREQUAL "${CMAKE_SOURCE_DIR}")
endif()
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# allow only Debug and Release builds
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set (CMAKE_CONFIGURATION_TYPES "Debug;Release;RelWithDebInfo" CACHE STRING "" FORCE)
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mark_as_advanced (CMAKE_CONFIGURATION_TYPES)

# set Debus as default build target
if (NOT CMAKE_BUILD_TYPE)
  set (CMAKE_BUILD_TYPE Debug CACHE STRING
      "Choose the type of build, options are: Debug, Release."
      FORCE)
endif ()

# create our output directroy
if (NOT EXISTS ${CMAKE_BINARY_DIR}/Build)
  file (MAKE_DIRECTORY ${CMAKE_BINARY_DIR}/Build)
endif ()

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#generate the global doc target (but only once!)
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if ( NOT TARGET doc )
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  ADD_CUSTOM_TARGET( doc )
  SET_TARGET_PROPERTIES( doc PROPERTIES EchoString "Building Documentation"  )
endif()

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# read version from file
macro (acg_get_version)
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    if (EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/branding/VERSION")
      file (READ "${CMAKE_CURRENT_SOURCE_DIR}/branding/VERSION" _file)
    elseif (EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/${ARGN}/VERSION")
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      file (READ "${CMAKE_CURRENT_SOURCE_DIR}/${ARGN}/VERSION" _file)
    else ()
      file (READ "${CMAKE_CURRENT_SOURCE_DIR}/VERSION" _file)
    endif ()

    string (
        REGEX REPLACE
        "^.*ID=([^\n]*).*$" "\\1"
        _id ${_file}
    )
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    string (
        REGEX REPLACE
        "^.*VERSION=([^\n]*).*$" "\\1"
        _version ${_file}
    )
    string (
        REGEX REPLACE
        "^.*MAJOR=([^\n]*).*$" "\\1"
        _major ${_file}
    )
    string (
        REGEX REPLACE
        "^.*MINOR=([^\n]*).*$" "\\1"
        _minor ${_file}
    )
    string (
        REGEX REPLACE
        "^.*PATCH=([^\n]*).*$" "\\1"
        _patch ${_file}
    )
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    set (${_id}_VERSION ${_version})
    set (${_id}_VERSION_MAJOR ${_major})
    set (${_id}_VERSION_MINOR ${_minor})
    set (${_id}_VERSION_PATCH ${_patch})
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endmacro ()


# set directory structures for the different platforms
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if (CMAKE_HOST_SYSTEM_NAME MATCHES Windows)
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  set (ACG_PROJECT_DATADIR ".")
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  set (ACG_PROJECT_LIBDIR "lib")
  set (ACG_PROJECT_BINDIR ".")
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  set (ACG_PROJECT_PLUGINDIR "Plugins")
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  if (NOT EXISTS ${CMAKE_BINARY_DIR}/Build/${ACG_PROJECT_LIBDIR})
    file (MAKE_DIRECTORY ${CMAKE_BINARY_DIR}/Build/${ACG_PROJECT_LIBDIR})
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  endif ()
else ()
  set (ACG_PROJECT_DATADIR "share/${CMAKE_PROJECT_NAME}")
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  set (ACG_PROJECT_LIBDIR "lib${LIB_SUFFIX}")
  set (ACG_PROJECT_PLUGINDIR "lib${LIB_SUFFIX}/plugins")
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  set (ACG_PROJECT_BINDIR "bin")
endif ()

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if( NOT APPLE )
  # check 64 bit
  if( CMAKE_SIZEOF_VOID_P MATCHES 4 )
    set( HAVE_64_BIT 0 )
  else( CMAKE_SIZEOF_VOID_P MATCHES 4 )
    set( HAVE_64_BIT 1 )
  endif( CMAKE_SIZEOF_VOID_P MATCHES 4 )
endif (  NOT APPLE )

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# allow a project to modify the directories
if (COMMAND acg_modify_project_dirs)
  acg_modify_project_dirs ()
endif ()

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if (NOT EXISTS ${CMAKE_BINARY_DIR}/Build/${ACG_PROJECT_DATADIR})
 file (MAKE_DIRECTORY ${CMAKE_BINARY_DIR}/Build/${ACG_PROJECT_DATADIR})
endif ()


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# sets default build properties
macro (acg_set_target_props target)
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  if (APPLE AND NOT ACG_PROJECT_MACOS_BUNDLE  AND NOT (CMAKE_MAJOR_VERSION  LESS 3))
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    set_target_properties (${target} PROPERTIES MACOSX_RPATH 1)
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  else()
    set_target_properties(${target} PROPERTIES MACOSX_RPPATH 0) #disable "@rpath" option since fixup_bundle has some problems finding dependencies
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  endif()

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  if (WIN32)
    set_target_properties (
      ${target} PROPERTIES
      BUILD_WITH_INSTALL_RPATH 1
      SKIP_BUILD_RPATH 0
    )
  elseif (APPLE AND NOT ACG_PROJECT_MACOS_BUNDLE)
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  if (NOT (CMAKE_MAJOR_VERSION  LESS 3) )
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      set_target_properties (
        ${target} PROPERTIES
        INSTALL_RPATH "@executable_path/../${ACG_PROJECT_LIBDIR}"
        MACOSX_RPATH 1
        BUILD_WITH_INSTALL_RPATH 1
        SKIP_BUILD_RPATH 0
      )  
    else()
      set_target_properties (
        ${target} PROPERTIES
        INSTALL_NAME_DIR "@executable_path/../${ACG_PROJECT_LIBDIR}"
        BUILD_WITH_INSTALL_RPATH 1
        SKIP_BUILD_RPATH 0
      ) 
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    endif(NOT (CMAKE_MAJOR_VERSION  LESS 3) )
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  elseif (NOT APPLE)
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    set_target_properties (
      ${target} PROPERTIES
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      INSTALL_RPATH "$ORIGIN/../${ACG_PROJECT_LIBDIR}"
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      BUILD_WITH_INSTALL_RPATH 1
      SKIP_BUILD_RPATH 0
      RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/Build/${ACG_PROJECT_BINDIR}"
      LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/Build/${ACG_PROJECT_LIBDIR}"
    )
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    # prepare for cross compiling
    if ( HAVE_64_BIT )
      if ( NOT CROSS_COMPILE_32)
        # Already in cache, be silent
        set( CROSS_COMPILE_32 false CACHE BOOL "Compile for 32-bit architecture")
      endif( NOT  CROSS_COMPILE_32 )

      if ( CROSS_COMPILE_32 )
        add_definitions( -m32 )
        set_target_properties( ${target} PROPERTIES LINK_FLAGS -m32  )
      endif ( CROSS_COMPILE_32 )

    else ( HAVE_64_BIT )

      if ( NOT CROSS_COMPILE_64)
        # Already in cache, be silent
        set( CROSS_COMPILE_64 false CACHE BOOL "Compile for 64-bit architecture")
      endif( NOT  CROSS_COMPILE_64 )

      if ( CROSS_COMPILE_64 )
        add_definitions( -m64 )
        set_target_properties( ${target} PROPERTIES LINK_FLAGS -m64  )
      endif ( CROSS_COMPILE_64 )

    endif( HAVE_64_BIT )

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  endif ()
endmacro ()

include (AddFileDependencies)
include (ACGCompiler)

# define INCLUDE_TEMPLATES for everything we build
add_definitions (-DINCLUDE_TEMPLATES)

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#unset cached qt variables which are set by all qt versions. version is the major number of the qt version (e.g. 4 or 5, not 4.8)
macro (acg_unset_qt_shared_variables version)
  if (ACG_INTERNAL_QT_LAST_VERSION)
    if (NOT ${ACG_INTERNAL_QT_LAST_VERSION} EQUAL ${version})
      unset(QT_BINARY_DIR)
      unset(QT_PLUGINS_DIR)
      unset(ACG_INTERNAL_QT_LAST_VERSION)
    endif()
  endif()
  set (ACG_INTERNAL_QT_LAST_VERSION "${version}" CACHE INTERNAL "Qt Version, which was used on the last time")
endmacro()

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# look for selected qt dependencies
macro (acg_qt4)
  if (NOT QT4_FOUND)
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    acg_unset_qt_shared_variables(4)
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    set (QT_MIN_VERSION ${ARGN}) 
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    if(POLICY CMP0020)
      # Automatically link Qt executables to qtmain target on Windows
      cmake_policy(SET CMP0020 NEW)
    endif(POLICY CMP0020)

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    find_package (Qt4 COMPONENTS QtCore QtGui )
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    set (QT_USE_QTOPENGL 1)
    set (QT_USE_QTNETWORK 1)
    set (QT_USE_QTSCRIPT 1)
    set (QT_USE_QTSQL 1)
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    set (QT_USE_QTXML 1)
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    set (QT_USE_QTXMLPATTERNS 1)
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    set (QT_USE_QTHELP 1)
    set (QT_USE_QTWEBKIT 1)
    set (QT_USE_QTUITOOLS 1)

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    if (QT_QTSCRIPTTOOLS_FOUND)
      set (QT_USE_QTSCRIPTTOOLS 1)
    endif()

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    include (${QT_USE_FILE})
  endif ()
endmacro ()

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macro (acg_qt5)
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   if(POLICY CMP0020)
     # Automatically link Qt executables to qtmain target on Windows
     cmake_policy(SET CMP0020 NEW)
   endif(POLICY CMP0020)
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  #if (NOT QT5_FOUND)

    #set (QT_MIN_VERSION ${ARGN})

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  #try to find qt5 automatically
  #for custom installation of qt5, dont use any of these variables
  set (QT5_INSTALL_PATH "" CACHE PATH "Path to Qt5 directory which contains lib and include folder")
  if (EXISTS "${QT5_INSTALL_PATH}")
    set (CMAKE_PREFIX_PATH "${CMAKE_PREFIX_PATH};${QT5_INSTALL_PATH}")
    set (QT5_INSTALL_PATH_EXISTS TRUE)
  endif()
  
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    find_package (Qt5Core QUIET)
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    if(Qt5Core_FOUND)
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        string(REGEX REPLACE "^([0-9]+)\\.[0-9]+\\.[0-9]+.*" "\\1" QT_VERSION_MAJOR "${Qt5Core_VERSION_STRING}")
        string(REGEX REPLACE "^[0-9]+\\.([0-9])+\\.[0-9]+.*" "\\1" QT_VERSION_MINOR "${Qt5Core_VERSION_STRING}")
        string(REGEX REPLACE "^[0-9]+\\.[0-9]+\\.([0-9]+).*" "\\1" QT_VERSION_PATCH "${Qt5Core_VERSION_STRING}")

      #find WINDOWS_SDK to avoid qt error. This must be done BEFORE Qt5Widgets is searched
      if (WIN32)
        if ( (QT_VERSION_MAJOR EQUAL 5) AND (QT_VERSION_MINOR LESS 3 OR ( QT_VERSION_MINOR EQUAL 3 AND QT_VERSION_PATCH EQUAL 0 )) ) # for all Qt version > 5.0.0 and < 5.3.1
          #glu32.lib is needed by qt5 opengl version. it cannot find it by itself so we help qt
          #this block has to be executed, before Qt5Gui is searched, otherwise we will end up with the (not so useful) QT5 error message
          set(WINDOWS_SDK_LIBS "COULD_NOT_FOUND" CACHE PATH "Path to the latest windows sdk libs which includes glu32.lib. Used by Qt5.")
          if (EXISTS "${WINDOWS_SDK_LIBS}\\glu32.lib")
            set (CMAKE_PREFIX_PATH "${CMAKE_PREFIX_PATH};${WINDOWS_SDK_LIBS}")
          elseif(QT5_INSTALL_PATH_EXISTS) #trying to install qt5. notify about missing sdk before the qt message comes
            message(FATAL_ERROR "Could not find glu32.lib. This is necessary for QT5 OpenGL version for windows, spleace specify glu32.lib in WINDOWS_SDK_LIB or install Qt version >= 5.3.1")
          endif()
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        endif()
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      endif(WIN32)

      #do noot look for Webkit and qt declarative on qt version 5.6 or newer
      if(${QT_VERSION_MINOR} GREATER 5)
          find_package (Qt5Widgets QUIET)
          find_package (Qt5Gui QUIET)
          find_package (Qt5OpenGL QUIET)
          find_package (Qt5Network QUIET)
          find_package (Qt5Script QUIET)
          find_package (Qt5ScriptTools QUIET)
          find_package (Qt5Sql QUIET)
          find_package (Qt5Xml QUIET)
          find_package (Qt5XmlPatterns QUIET)
          find_package (Qt5Help QUIET)
          find_package (Qt5UiTools QUIET)
          find_package (Qt5Concurrent QUIET)
          find_package (Qt5PrintSupport QUIET)
          find_package (Qt5Svg QUIET)
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      else(${QT_VERSION_MINOR} GREATER 5)
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          find_package (Qt5Declarative QUIET)
          find_package (Qt5Widgets QUIET)
          find_package (Qt5Gui QUIET)
          find_package (Qt5OpenGL QUIET)
          find_package (Qt5Network QUIET)
          find_package (Qt5Script QUIET)
          find_package (Qt5ScriptTools QUIET)
          find_package (Qt5Sql QUIET)
          find_package (Qt5Xml QUIET)
          find_package (Qt5XmlPatterns QUIET)
          find_package (Qt5Help QUIET)
          find_package (Qt5WebKit QUIET)
          find_package (Qt5UiTools QUIET)
          find_package (Qt5Concurrent QUIET)
          find_package (Qt5PrintSupport QUIET)
          find_package (Qt5Svg QUIET)
      endif(${QT_VERSION_MINOR} GREATER 5)

      if (NOT WIN32 AND NOT APPLE)
         find_package (Qt5X11Extras QUIET)
      endif ()

      if(${QT_VERSION_MINOR} GREATER 5)
          if (Qt5Core_FOUND AND Qt5Widgets_FOUND
            AND Qt5Gui_FOUND AND Qt5OpenGL_FOUND AND Qt5Network_FOUND
            AND Qt5Script_FOUND AND Qt5ScriptTools_FOUND AND Qt5Sql_FOUND
            AND Qt5Xml_FOUND AND Qt5XmlPatterns_FOUND AND Qt5Help_FOUND
            AND Qt5UiTools_FOUND AND Qt5Concurrent_FOUND
            AND Qt5PrintSupport_FOUND)
            set (QT5_FOUND TRUE)
          endif()
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      else(${QT_VERSION_MINOR} GREATER 5)
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          if (Qt5Core_FOUND AND Qt5Declarative_FOUND AND Qt5Widgets_FOUND
            AND Qt5Gui_FOUND AND Qt5OpenGL_FOUND AND Qt5Network_FOUND
            AND Qt5Script_FOUND AND Qt5ScriptTools_FOUND AND Qt5Sql_FOUND
            AND Qt5Xml_FOUND AND Qt5XmlPatterns_FOUND AND Qt5Help_FOUND
            AND Qt5WebKit_FOUND AND Qt5UiTools_FOUND AND Qt5Concurrent_FOUND
            AND Qt5PrintSupport_FOUND)
            set (QT5_FOUND TRUE)
          endif()
      endif(${QT_VERSION_MINOR} GREATER 5)
    endif(Qt5Core_FOUND)
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    if (QT5_FOUND)   
      acg_unset_qt_shared_variables(5)
    
      #set plugin dir
      list(GET Qt5Gui_PLUGINS 0 _plugin)
      if (_plugin)
        get_target_property(_plugin_full ${_plugin} LOCATION)
        get_filename_component(_plugin_dir ${_plugin_full} PATH)
      set (QT_PLUGINS_DIR "${_plugin_dir}/../" CACHE PATH "Path to the qt plugin directory")
      elseif(QT5_INSTALL_PATH_EXISTS)
        set (QT_PLUGINS_DIR "${QT5_INSTALL_PATH}/plugins/" CACHE PATH "Path to the qt plugin directory")
      elseif()
        set (QT_PLUGINS_DIR "QT_PLUGIN_DIR_NOT_FOUND" CACHE PATH "Path to the qt plugin directory")
      endif(_plugin)
      
      #set binary dir for fixupbundle
      if(QT5_INSTALL_PATH_EXISTS)
        set(_QT_BINARY_DIR "${QT5_INSTALL_PATH}/bin")
      else()
        get_target_property(_QT_BINARY_DIR ${Qt5Widgets_UIC_EXECUTABLE} LOCATION)
        get_filename_component(_QT_BINARY_DIR ${_QT_BINARY_DIR} PATH)
      endif(QT5_INSTALL_PATH_EXISTS)
      
      set (QT_BINARY_DIR "${_QT_BINARY_DIR}" CACHE PATH "Qt5 binary Directory")
      mark_as_advanced(QT_BINARY_DIR)
      
      set (CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
  
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      include_directories(${Qt5Core_INCLUDE_DIRS})
      include_directories(${Qt5Declarative_INCLUDE_DIRS})
      include_directories(${Qt5Widgets_INCLUDE_DIRS})
      include_directories(${Qt5Gui_INCLUDE_DIRS})
      include_directories(${Qt5OpenGL_INCLUDE_DIRS})
      include_directories(${Qt5Network_INCLUDE_DIRS})
      include_directories(${Qt5Script_INCLUDE_DIRS})
      include_directories(${Qt5ScriptTools_INCLUDE_DIRS})
      include_directories(${Qt5Sql_INCLUDE_DIRS})
      include_directories(${Qt5Xml_INCLUDE_DIRS})
      include_directories(${Qt5XmlPatterns_INCLUDE_DIRS})
      include_directories(${Qt5Help_INCLUDE_DIRS})
      include_directories(${Qt5WebKit_INCLUDE_DIRS})
      include_directories(${Qt5UiTools_INCLUDE_DIRS})
      include_directories(${Qt5Concurrent_INCLUDE_DIRS})
      include_directories(${Qt5PrintSupport_INCLUDE_DIRS})
      add_definitions(${Qt5Core_DEFINITIONS})
      add_definitions(${Qt5Widgets_DEFINITIONS})
      add_definitions(${Qt5Gui_DEFINITIONS})
      add_definitions(${Qt5OpenGL_DEFINITIONS})
      add_definitions(${Qt5Network_DEFINITIONS})
      add_definitions(${Qt5Script_DEFINITIONS})
      add_definitions(${Qt5ScriptTools_DEFINITIONS})
      add_definitions(${Qt5Sql_DEFINITIONS})
      add_definitions(${Qt5Xml_DEFINITIONS})
      add_definitions(${Qt5XmlPatterns_DEFINITIONS})
      add_definitions(${Qt5Help_DEFINITIONS})
      add_definitions(${Qt5WebKit_DEFINITIONS})
      add_definitions(${Qt5UiTools_DEFINITIONS})
      add_definitions(${Qt5Concurrent_DEFINITIONS})
      add_definitions(${Qt5PrintSupport_DEFINITIONS})
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      if (Qt5X11Extras_FOUND)
	      include_directories(${Qt5X11Extras_INCLUDE_DIRS})
	      add_definitions(${Qt5X11Extras_DEFINITIONS})
      endif ()
      
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      if ( NOT MSVC )
        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC")
      endif()
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      set (QT_LIBRARIES ${Qt5Core_LIBRARIES} ${Qt5Declarative_LIBRARIES} ${Qt5Widgets_LIBRARIES}
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        ${Qt5Gui_LIBRARIES} ${Qt5OpenGL_LIBRARIES} ${Qt5Network_LIBRARIES}
        ${Qt5Script_LIBRARIES} ${Qt5ScriptTools_LIBRARIES} ${Qt5Sql_LIBRARIES}
        ${Qt5Xml_LIBRARIES} ${Qt5XmlPatterns_LIBRARIES} ${Qt5Help_LIBRARIES}
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        ${Qt5WebKit_LIBRARIES} ${Qt5UiTools_LIBRARIES} ${Qt5Concurrent_LIBARIES} 
        ${Qt5PrintSupport_LIBRARIES})
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      if (Qt5X11Extras_FOUND)
	      list (APPEND QT_LIBRARIES ${Qt5X11Extras_LIBRARIES})
	  endif ()
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      if (MSVC)
        set (QT_LIBRARIES ${QT_LIBRARIES} ${Qt5Core_QTMAIN_LIBRARIES})
      endif()
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	  #add_definitions(-DQT_NO_OPENGL)

	  #adding QT_NO_DEBUG to all release modes. 
	  #  Note: for multi generators like msvc you cannot set this definition depending of
	  #  the current build type, because it may change in the future inside the ide and not via cmake
	  if (MSVC_IDE)
	    set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} /DQT_NO_DEBUG")
	    set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} /DQT_NO_DEBUG")
		
		set(CMAKE_C_FLAGS_MINSIZEREL "${CMAKE_C_FLAGS_RELEASE} /DQT_NO_DEBUG")
	    set(CMAKE_CXX_FLAGS_MINSITEREL "${CMAKE_C_FLAGS_RELEASE} /DQT_NO_DEBUG")
		
		set(CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS_RELEASE} /DQT_NO_DEBUG")
	    set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS_RELEASE} /DQT_NO_DEBUG")
	  else(MSVC_IDE)
	    if(NOT CMAKE_BUILD_TYPE STREQUAL "Debug")
	      add_definitions(-DQT_NO_DEBUG)
	    endif()
      endif(MSVC_IDE)

    endif ()
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endmacro ()

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# unsets the given variable
macro (acg_unset var)
    set (${var} "" CACHE INTERNAL "")
endmacro ()

# sets the given variable
macro (acg_set var value)
    set (${var} ${value} CACHE INTERNAL "")
endmacro ()

# test for OpenMP
macro (acg_openmp)
  if (NOT OPENMP_NOTFOUND)
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    # Set off OpenMP on Darwin architectures
    # since it causes crashes sometimes
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#    if(NOT APPLE)    
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        find_package(OpenMP)
      if (OPENMP_FOUND)
        set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS}")
        set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${OpenMP_C_FLAGS}")
        add_definitions(-DUSE_OPENMP)
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#      else ()
#        set (OPENMP_NOTFOUND 1)
#      endif ()
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    endif()
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  endif ()
endmacro ()

# test for FTGL
macro (acg_ftgl)
  find_package (Freetype)

  if (FREETYPE_FOUND)
    find_package (FTGL)

    if (FTGL_FOUND)
      add_definitions (-DUSE_FTGL)
      include_directories (${FTGL_INCLUDE_DIR} ${FREETYPE_INCLUDE_DIR_freetype2})
      set (FTGL_LIBS ${FREETYPE_LIBRARIES} ${FTGL_LIBRARIES})
    endif ()
  endif ()
endmacro ()

# append all files with extension "ext" in the "dirs" directories to "ret"
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# excludes all files starting with a '.' (dot)
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macro (acg_append_files ret ext)
  foreach (_dir ${ARGN})
    file (GLOB _files "${_dir}/${ext}")
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    foreach (_file ${_files})
      get_filename_component (_filename ${_file} NAME)
      if (_filename MATCHES "^[.]")
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	list (REMOVE_ITEM _files ${_file})
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      endif ()
    endforeach ()
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    list (APPEND ${ret} ${_files})
  endforeach ()
endmacro ()

# append all files with extension "ext" in the "dirs" directories and its subdirectories to "ret"
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# excludes all files starting with a '.' (dot)
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macro (acg_append_files_recursive ret ext)
  foreach (_dir ${ARGN})
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    file (GLOB_RECURSE _files "${_dir}/${ext}")
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    foreach (_file ${_files})
      get_filename_component (_filename ${_file} NAME)
      if (_filename MATCHES "^[.]")
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	list (REMOVE_ITEM _files ${_file})
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      endif ()
    endforeach ()
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    list (APPEND ${ret} ${_files})
  endforeach ()
endmacro ()

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# drop all "*T.cc" files from list
macro (acg_drop_templates list)
  foreach (_file ${${list}})
    if (_file MATCHES "T.cc$")
      list (REMOVE_ITEM ${list} ${_file})
    endif ()
  endforeach ()
endmacro ()

# generate moc targets for sources in list
macro (acg_qt4_automoc moc_SRCS)
  qt4_get_moc_flags (_moc_INCS)
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  list(REMOVE_DUPLICATES _moc_INCS)
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  set (_matching_FILES )
  foreach (_current_FILE ${ARGN})

     get_filename_component (_abs_FILE ${_current_FILE} ABSOLUTE)
     # if "SKIP_AUTOMOC" is set to true, we will not handle this file here.
     # here. this is required to make bouic work correctly:
     # we need to add generated .cpp files to the sources (to compile them),
     # but we cannot let automoc handle them, as the .cpp files don't exist yet when
     # cmake is run for the very first time on them -> however the .cpp files might
     # exist at a later run. at that time we need to skip them, so that we don't add two
     # different rules for the same moc file
     get_source_file_property (_skip ${_abs_FILE} SKIP_AUTOMOC)

     if ( NOT _skip AND EXISTS ${_abs_FILE} )

        file (READ ${_abs_FILE} _contents)

        get_filename_component (_abs_PATH ${_abs_FILE} PATH)

        string (REGEX MATCHALL "Q_OBJECT" _match "${_contents}")
        if (_match)
            get_filename_component (_basename ${_current_FILE} NAME_WE)
            set (_header ${_abs_FILE})
            set (_moc    ${CMAKE_CURRENT_BINARY_DIR}/moc_${_basename}.cpp)

            add_custom_command (OUTPUT ${_moc}
                COMMAND ${QT_MOC_EXECUTABLE}
                ARGS ${_moc_INCS} ${_header} -o ${_moc}
                DEPENDS ${_header}
            )

            add_file_dependencies (${_abs_FILE} ${_moc})
            set (${moc_SRCS} ${${moc_SRCS}} ${_moc})
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        endif ()
     endif ()
  endforeach ()
endmacro ()

# generate moc targets for sources in list
macro (acg_qt5_automoc moc_SRCS)
  qt5_get_moc_flags (_moc_INCS)
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  list(REMOVE_DUPLICATES _moc_INCS)
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  set (_matching_FILES )
  foreach (_current_FILE ${ARGN})

     get_filename_component (_abs_FILE ${_current_FILE} ABSOLUTE)
     # if "SKIP_AUTOMOC" is set to true, we will not handle this file here.
     # here. this is required to make bouic work correctly:
     # we need to add generated .cpp files to the sources (to compile them),
     # but we cannot let automoc handle them, as the .cpp files don't exist yet when
     # cmake is run for the very first time on them -> however the .cpp files might
     # exist at a later run. at that time we need to skip them, so that we don't add two
     # different rules for the same moc file
     get_source_file_property (_skip ${_abs_FILE} SKIP_AUTOMOC)

     if ( NOT _skip AND EXISTS ${_abs_FILE} )

        file (READ ${_abs_FILE} _contents)

        get_filename_component (_abs_PATH ${_abs_FILE} PATH)

        string (REGEX MATCHALL "Q_OBJECT" _match "${_contents}")
        if (_match)
            get_filename_component (_basename ${_current_FILE} NAME_WE)
            set (_header ${_abs_FILE})
            set (_moc    ${CMAKE_CURRENT_BINARY_DIR}/moc_${_basename}.cpp)

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            add_custom_command (OUTPUT ${_moc}
                COMMAND ${QT_MOC_EXECUTABLE}
                ARGS ${_moc_INCS} ${_header} -o ${_moc}
                DEPENDS ${_header}
            )
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            add_file_dependencies (${_abs_FILE} ${_moc})
            set (${moc_SRCS} ${${moc_SRCS}} ${_moc})

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        endif ()
     endif ()
  endforeach ()
endmacro ()

# generate uic targets for sources in list
macro (acg_qt4_autouic uic_SRCS)

  set (_matching_FILES )
  foreach (_current_FILE ${ARGN})

     get_filename_component (_abs_FILE ${_current_FILE} ABSOLUTE)

     if ( EXISTS ${_abs_FILE} )

        file (READ ${_abs_FILE} _contents)

        get_filename_component (_abs_PATH ${_abs_FILE} PATH)

        get_filename_component (_basename ${_current_FILE} NAME_WE)
        string (REGEX REPLACE "Ui$" "" _cbasename ${_basename})
        set (_outfile ${CMAKE_CURRENT_BINARY_DIR}/ui_${_basename}.hh)
        set (_header ${_basename}.hh)
        set (_source ${_abs_PATH}/${_cbasename}.cc)
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        add_custom_command (OUTPUT ${_outfile}
            COMMAND ${QT_UIC_EXECUTABLE}
            ARGS -o ${_outfile} ${_abs_FILE}
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            MAIN_DEPENDENCY ${_abs_FILE} VERBATIM)
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        add_file_dependencies (${_source} ${_outfile})
        set (${uic_SRCS} ${${uic_SRCS}} ${_outfile})
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     endif ()
  endforeach ()
endmacro ()

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# generate uic targets for sources in list
macro (acg_qt5_autouic uic_SRCS)

  set (_matching_FILES )
  foreach (_current_FILE ${ARGN})

     get_filename_component (_abs_FILE ${_current_FILE} ABSOLUTE)

     if ( EXISTS ${_abs_FILE} )

        file (READ ${_abs_FILE} _contents)

        get_filename_component (_abs_PATH ${_abs_FILE} PATH)

        get_filename_component (_basename ${_current_FILE} NAME_WE)
        string (REGEX REPLACE "Ui$" "" _cbasename ${_basename})
        set (_outfile ${CMAKE_CURRENT_BINARY_DIR}/ui_${_basename}.hh)
        set (_header ${_basename}.hh)
        set (_source ${_abs_PATH}/${_cbasename}.cc)

        add_custom_command (OUTPUT ${_outfile}
            COMMAND ${Qt5Widgets_UIC_EXECUTABLE}
            ARGS -o ${_outfile} ${_abs_FILE}
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            MAIN_DEPENDENCY ${_abs_FILE} VERBATIM)
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        add_file_dependencies (${_source} ${_outfile})
        set (${uic_SRCS} ${${uic_SRCS}} ${_outfile})

     endif ()
  endforeach ()
endmacro ()
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# generate qrc targets for sources in list
macro (acg_qt4_autoqrc qrc_SRCS)

  set (_matching_FILES )
  foreach (_current_FILE ${ARGN})

     get_filename_component (_abs_FILE ${_current_FILE} ABSOLUTE)

     if ( EXISTS ${_abs_FILE} )

        file (READ ${_abs_FILE} _contents)

        get_filename_component (_abs_PATH ${_abs_FILE} PATH)

        get_filename_component (_basename ${_current_FILE} NAME_WE)
        set (_outfile ${CMAKE_CURRENT_BINARY_DIR}/qrc_${_basename}.cpp)
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        add_custom_command (OUTPUT ${_outfile}
            COMMAND ${QT_RCC_EXECUTABLE}
            ARGS -o ${_outfile}  ${_abs_FILE}
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            DEPENDS ${_abs_FILE}) 
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        add_file_dependencies (${_source} ${_outfile})
        set (${qrc_SRCS} ${${qrc_SRCS}} ${_outfile})

     endif ()
  endforeach ()
endmacro ()

# generate qrc targets for sources in list
macro (acg_qt5_autoqrc qrc_SRCS)

  set (_matching_FILES )
  foreach (_current_FILE ${ARGN})

     get_filename_component (_abs_FILE ${_current_FILE} ABSOLUTE)

     if ( EXISTS ${_abs_FILE} )

        file (READ ${_abs_FILE} _contents)

        get_filename_component (_abs_PATH ${_abs_FILE} PATH)

        get_filename_component (_basename ${_current_FILE} NAME_WE)
        set (_outfile ${CMAKE_CURRENT_BINARY_DIR}/qrc_${_basename}.cpp)

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        qt5_add_resources( ${_outfile}  ${_abs_FILE}  )
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        add_file_dependencies (${_source} ${_outfile})
        set (${qrc_SRCS} ${${qrc_SRCS}} ${_outfile})

     endif ()
  endforeach ()
endmacro ()

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# get all files in directory, but ignore svn
macro (acg_get_files_in_dir ret dir)
  file (GLOB_RECURSE __files RELATIVE "${dir}" "${dir}/*")
  foreach (_file ${__files})
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    if ( (NOT _file MATCHES ".*svn.*") AND (NOT _file MATCHES ".DS_Store") )
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      list (APPEND ${ret} "${_file}")
    endif ()
  endforeach ()
endmacro ()

# copy the whole directory without svn files
function (acg_copy_after_build target src dst)
  acg_unset (_files)
  acg_get_files_in_dir (_files ${src})
  foreach (_file ${_files})
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    add_custom_command(TARGET ${target} POST_BUILD
      COMMAND ${CMAKE_COMMAND} -E copy_if_different "${src}/${_file}" "${dst}/${_file}"
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    )
  endforeach ()
endfunction ()

# install the whole directory without svn files
function (acg_install_dir src dst)
  acg_unset (_files)
  acg_get_files_in_dir (_files ${src})
  foreach (_file ${_files})
    get_filename_component (_file_PATH ${_file} PATH)
    install(FILES "${src}/${_file}"
      DESTINATION "${dst}/${_file_PATH}"
    )
  endforeach ()
endfunction ()

# extended version of add_executable that also copies output to out Build directory
function (acg_add_executable _target)
  add_executable (${_target} ${ARGN})

  # set common target properties defined in common.cmake
  acg_set_target_props (${_target})
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  if (WIN32)
    set (OUTPUT_DIR "${CMAKE_BINARY_DIR}/Build/${ACG_PROJECT_BINDIR}/")
    set_target_properties(${_target} PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${OUTPUT_DIR}) 
    foreach(CONFIG ${CMAKE_CONFIGURATION_TYPES})
      string(TOUPPER ${CONFIG} UPCONFIG)
      set_target_properties(${_target} PROPERTIES RUNTIME_OUTPUT_DIRECTORY_${UPCONFIG} ${OUTPUT_DIR})
    endforeach()
  elseif (APPLE AND NOT ACG_PROJECT_MACOS_BUNDLE)
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    add_custom_command (TARGET ${_target} POST_BUILD
                        COMMAND ${CMAKE_COMMAND} -E
                        copy_if_different
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                          $<TARGET_FILE:${_target}>
                          ${CMAKE_BINARY_DIR}/Build/${ACG_PROJECT_BINDIR}/$<TARGET_FILE_NAME:${_target}>)
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  endif ()
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  if (NOT ACG_PROJECT_MACOS_BUNDLE OR NOT APPLE)
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    install (TARGETS ${_target} DESTINATION ${ACG_PROJECT_BINDIR})
  endif ()
endfunction ()

# extended version of add_library that also copies output to out Build directory
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function (acg_add_library _target _libtype)

  if (${_libtype} STREQUAL SHAREDANDSTATIC)
    set (_type SHARED)
    if (NOT WIN32)
      set (_and_static 1)
    else ()
      set (_and_static 0)
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    endif ()    
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  else ()
    set (_type ${_libtype})
    set (_and_static 0)
  endif ()

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  add_library (${_target} ${_type} ${ARGN} )

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  # set common target properties defined in common.cmake
  acg_set_target_props (${_target})

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  if (_and_static)
    add_library (${_target}Static STATIC ${ARGN})

    # set common target properties defined in common.cmake
    acg_set_target_props (${_target}Static)
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    set_target_properties(${_target}Static PROPERTIES OUTPUT_NAME ${_target})
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    if (NOT APPLE)
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      set_target_properties (${_target}Static PROPERTIES 
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                             LIBRARY_OUTPUT_DIRECTORY "${CMAKE_LIBRARY_OUTPUT_DIRECTORY}"
                            )
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    endif ()
  endif ()

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  if (WIN32 OR (APPLE AND NOT ACG_PROJECT_MACOS_BUNDLE))
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    if (${_type} STREQUAL SHARED)
      add_custom_command (TARGET ${_target} POST_BUILD
                          COMMAND ${CMAKE_COMMAND} -E
                          copy_if_different
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                            $<TARGET_FILE:${_target}>
                            ${CMAKE_BINARY_DIR}/Build/${ACG_PROJECT_LIBDIR}/$<TARGET_FILE_NAME:${_target}>)
    add_custom_command (TARGET ${_target} POST_BUILD
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                          COMMAND ${CMAKE_COMMAND} -E
                          copy_if_different
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                            $<TARGET_LINKER_FILE:${_target}>
                            ${CMAKE_BINARY_DIR}/Build/${ACG_PROJECT_LIBDIR}/$<TARGET_LINKER_FILE_NAME:${_target}>)
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    elseif (${_type} STREQUAL MODULE)
      if (NOT EXISTS ${CMAKE_BINARY_DIR}/Build/${ACG_PROJECT_PLUGINDIR})
        file (MAKE_DIRECTORY ${CMAKE_BINARY_DIR}/Build/${ACG_PROJECT_PLUGINDIR})
      endif ()
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      add_custom_command (TARGET ${_target} POST_BUILD
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                          COMMAND ${CMAKE_COMMAND} -E
                          copy_if_different
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                            $<TARGET_FILE:${_target}>
                            ${CMAKE_BINARY_DIR}/Build/${ACG_PROJECT_PLUGINDIR}/$<TARGET_FILE_NAME:${_target}>)
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    elseif (${_type} STREQUAL STATIC)
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    add_custom_command (TARGET ${_target} POST_BUILD
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                          COMMAND ${CMAKE_COMMAND} -E
                          copy_if_different
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                            $<TARGET_FILE:${_target}>
                            ${CMAKE_BINARY_DIR}/Build/${ACG_PROJECT_LIBDIR}/$<TARGET_FILE_NAME:${_target}>)
  endif()
  
   
  # make an extra copy for windows into the binary directory
    if (${_type} STREQUAL SHARED AND WIN32)
      add_custom_command (TARGET ${_target} POST_BUILD
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                          COMMAND ${CMAKE_COMMAND} -E
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                          copy_if_different 
                            $<TARGET_FILE:${_target}>
                            ${CMAKE_BINARY_DIR}/Build/${ACG_PROJECT_BINDIR}/$<TARGET_FILE_NAME:${_target}>)
  endif () 
    
  endif(WIN32 OR (APPLE AND NOT ACG_PROJECT_MACOS_BUNDLE))
  
  if (_and_static)
    add_custom_command (TARGET ${_target}Static POST_BUILD
                        COMMAND ${CMAKE_COMMAND} -E
                        copy_if_different
                          $<TARGET_FILE:${_target}Static>
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                          ${CMAKE_BINARY_DIR}/Build/${ACG_PROJECT_BINDIR}/$<TARGET_FILE_NAME:${_target}Static>)
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  endif ()
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  # Block installation of libraries by setting ACG_NO_LIBRARY_INSTALL
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  if ( NOT ACG_NO_LIBRARY_INSTALL ) 
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    if (NOT ACG_PROJECT_MACOS_BUNDLE OR NOT APPLE)
      if (${_type} STREQUAL SHARED OR ${_type} STREQUAL STATIC )
        install (TARGETS ${_target}
                 RUNTIME DESTINATION ${ACG_PROJECT_BINDIR}
                 LIBRARY DESTINATION ${ACG_PROJECT_LIBDIR}
                 ARCHIVE DESTINATION ${ACG_PROJECT_LIBDIR})
        if (_and_static)
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          install (TARGETS ${_target}Static
                   DESTINATION ${ACG_PROJECT_LIBDIR})
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        endif ()
      elseif (${_type} STREQUAL MODULE)
        install (TARGETS ${_target} DESTINATION ${ACG_PROJECT_PLUGINDIR})
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      endif ()
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    endif ()
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  endif()
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endfunction ()
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#generates qt translations
function (acg_add_translations _target _languages _sources)

  string (TOUPPER ${_target} _TARGET)
  # generate/use translation files
  # run with UPDATE_TRANSLATIONS set to on to build qm files
  option (UPDATE_TRANSLATIONS_${_TARGET} "Update source translation *.ts files (WARNING: make clean will delete the source .ts files! Danger!)")

  set (_new_ts_files)
  set (_ts_files)

  foreach (lang ${_languages})
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    if (NOT EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/translations/${_target}_${lang}.ts" OR UPDATE_TRANSLATIONS_${_TARGET})
      list (APPEND _new_ts_files "translations/${_target}_${lang}.ts")
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    else ()
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      list (APPEND _ts_files "translations/${_target}_${lang}.ts")
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    endif ()
  endforeach ()

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  set (_qm_files)
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  if ( _new_ts_files )
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    if (QT5_FOUND)
      #qt5_create_translation(_qm_files ${_sources} ${_new_ts_files})
    elseif (QT4_FOUND)
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    qt4_create_translation(_qm_files ${_sources} ${_new_ts_files})
  endif ()
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  endif ()

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  if ( _ts_files )
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    if (QT5_FOUND)
      #qt5_add_translation(_qm_files2 ${_ts_files})
    elseif (QT4_FOUND)
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    qt4_add_translation(_qm_files2 ${_ts_files})
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    endif()
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    list (APPEND _qm_files ${_qm_files2})
  endif ()

  # create a target for the translation files ( and object files )
  # Use this target, to update only the translations
  add_custom_target (translations_target_${_target} DEPENDS ${_qm_files})

  # Build translations with the application
  add_dependencies(${_target} translations_target_${_target} )

  if (NOT EXISTS ${CMAKE_BINARY_DIR}/Build/${ACG_PROJECT_DATADIR}/Translations)
    file(MAKE_DIRECTORY ${CMAKE_BINARY_DIR}/Build/${ACG_PROJECT_DATADIR}/Translations )
  endif ()

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  foreach (_qm ${_qm_files})
    get_filename_component (_qm_name "${_qm}" NAME)
    add_custom_command (TARGET translations_target_${_target} POST_BUILD
                        COMMAND ${CMAKE_COMMAND} -E
                        copy_if_different
                          ${_qm}
                          ${CMAKE_BINARY_DIR}/Build/${ACG_PROJECT_DATADIR}/Translations/${_qm_name})
  endforeach ()
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  if (NOT ACG_PROJECT_MACOS_BUNDLE OR NOT APPLE)
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    install (FILES ${_qm_files} DESTINATION "${ACG_PROJECT_DATADIR}/Translations")
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  endif ()
endfunction ()
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# Function that writes all generated qch files into one Help.qhcp project file
function (generate_qhp_file files_loc plugin_name)

    set(qhp_file "${files_loc}/${plugin_name}.qhp")
    # Read in template file
    file(STRINGS "${CMAKE_SOURCE_DIR}/OpenFlipper/Documentation/QtHelpResources/QtHelpProject.qhp" qhp_template)
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    # Initialize new project file
    file(WRITE ${qhp_file} "")
    foreach (_line ${qhp_template})
        string(STRIP ${_line} stripped)
        if("${stripped}" STREQUAL "files")
            acg_get_files_in_dir (_files ${files_loc})
            foreach (_file ${_files})
                string(REGEX MATCH ".+[.]+((html)|(htm)|(xml))$" fileresult ${_file})
                string(LENGTH "${fileresult}" len)
                if(${len} GREATER 0)
                    file(APPEND ${qhp_file} "<file>${_file}</file>\n")
                endif()
            endforeach()
        else()
            string(REGEX REPLACE "plugin" ${plugin} newline ${_line})
            file(APPEND ${qhp_file} "${newline}\n")
        endif()
    endforeach()
endfunction()
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function(acg_test_glew_definition _def _out)
  include(CheckCXXSourceRuns)
  set(CMAKE_REQUIRED_INCLUDES ${GLEW_INCLUDE_DIRS})
  set(CMAKE_REQUIRED_LIBRARIES ${GLEW_LIBRARIES})
  set(CMAKE_REQUIRED_DEFINITIONS -DCHECKING=${_def})
  if(GLEW_FOUND)
    if(NOT ${_out})
      unset(${_out} CACHE) #clear cache, if previous test failed and try again
    endif()
    CHECK_CXX_SOURCE_RUNS("
      #include <GL/glew.h>
      int main()
      {
      #ifdef ${_def}
      return 0;
      #else
      return 1;
      #endif
      }"
      ${_out})
  endif()
endfunction()