CMakeUserFindWix

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---

   # - Try to find Windows Installer XML
   # See http://wix.sourceforge.net
   #
   # The follwoing variables are optionally searched for defaults
   #  WIX_ROOT_DIR:            Base directory of WIX2 tree to use.
   #
   # The following are set after configuration is done: 
   #  WIX_FOUND
   #  WIX_ROOT_DIR
   #  WIX_CANDLE
   #  WIX_LIGHT
   # 
   # 2009/02 Petr Pytelka (pyta at lightcomp.cz)
   #
   
   MACRO(DBG_MSG _MSG)
   #  MESSAGE(STATUS "${CMAKE_CURRENT_LIST_FILE}(${CMAKE_CURRENT_LIST_LINE}):\n ${_MSG}")
   ENDMACRO(DBG_MSG)
   
   
   # typical root dirs of installations, exactly one of them is used
   SET (WIX_POSSIBLE_ROOT_DIRS
     "${WIX_ROOT_DIR}"
     "$ENV{WIX}"
     "$ENV{WIX_ROOT_DIR}"
     "$ENV{ProgramFiles}/Windows Installer XML"
     )
   
   
   #DBG_MSG("DBG (WIX_POSSIBLE_ROOT_DIRS=${WIX_POSSIBLE_ROOT_DIRS}")
   
   #
   # select exactly ONE WIX base directory/tree 
   # to avoid mixing different version headers and libs
   #
   FIND_PATH(WIX_ROOT_DIR 
     NAMES 
     bin/candle.exe
     bin/light.exe
     PATHS ${WIX_POSSIBLE_ROOT_DIRS})
   DBG_MSG("WIX_ROOT_DIR=${WIX_ROOT_DIR}")
   
   
   #
   # Logic selecting required libs and headers
   #
   SET(WIX_FOUND OFF)
   IF(WIX_ROOT_DIR)
     SET(WIX_FOUND ON)
   ENDIF(WIX_ROOT_DIR)
   
   
   # display help message
   IF(NOT WIX_FOUND)
     # make FIND_PACKAGE friendly
     IF(NOT WIX_FIND_QUIETLY)
       IF(WIX_FIND_REQUIRED)
         MESSAGE(FATAL_ERROR
           "Windows Installer XML required but some files not found. Please specify it's location with WIX_ROOT_DIR env. variable.")
       ELSE(WIX_FIND_REQUIRED)
         MESSAGE(STATUS 
           "ERROR: Windows Installer XML was not found.")
       ENDIF(WIX_FIND_REQUIRED)
     ENDIF(NOT WIX_FIND_QUIETLY)
   ELSE(NOT WIX_FOUND)
     SET(WIX_CANDLE ${WIX_ROOT_DIR}/bin/candle.exe)
     SET(WIX_LIGHT ${WIX_ROOT_DIR}/bin/light.exe)
   #  MESSAGE(STATUS "Windows Installer XML found.")
   ENDIF(NOT WIX_FOUND)
   
   
   MARK_AS_ADVANCED(
     WIX_ROOT_DIR
     WIX_CANDLE
     WIX_LIGHT
     )
   
   #
   # Call wix compiler
   #
   # Parameters:
   #  _sources - name of list with sources
   #  _obj - name of list for target objects
   #
   MACRO(WIX_COMPILE _sources _objs _extra_dep)
     DBG_MSG("WIX compile: ${${_sources}}")
     FOREACH (_current_FILE ${${_sources}})
       GET_FILENAME_COMPONENT(_tmp_FILE ${_current_FILE} ABSOLUTE)
       GET_FILENAME_COMPONENT(_basename ${_tmp_FILE} NAME_WE)
   
       SET (SOURCE_WIX_FILE ${_tmp_FILE} )
       DBG_MSG("WIX source file: ${SOURCE_WIX_FILE}")
   
       # Check whether source exists
       IF(EXISTS ${SOURCE_WIX_FILE})
       ELSE(EXISTS ${SOURCE_WIX_FILE})
         MESSAGE(FATAL_ERROR "Path not exists: ${SOURCE_WIX_FILE}")
       ENDIF(EXISTS ${SOURCE_WIX_FILE})
   
       SET (OUTPUT_WIXOBJ ${_basename}.wixobj )
   
       DBG_MSG("WIX output: ${CMAKE_CURRENT_BINARY_DIR}/${OUTPUT_WIXOBJ}")
       DBG_MSG("WIX command: ${WIX_CANDLE}")
   
       ADD_CUSTOM_COMMAND( 
         OUTPUT    ${CMAKE_CURRENT_BINARY_DIR}/${OUTPUT_WIXOBJ}
         COMMAND   ${WIX_CANDLE}
         ARGS      ${WIX_CANDLE_FLAGS} ${SOURCE_WIX_FILE}
         DEPENDS   ${SOURCE_WIX_FILE} ${${_extra_dep}}
         COMMENT   "Compiling ${SOURCE_WIX_FILE} -> ${OUTPUT_WIXOBJ}"
       )
       SET(${_objs} ${${_objs}} ${CMAKE_CURRENT_BINARY_DIR}/${OUTPUT_WIXOBJ} )
       DBG_MSG("WIX compile output: ${${_objs}}")
   
     ENDFOREACH (_current_FILE)
   ENDMACRO(WIX_COMPILE)
   
   #
   # Call wix compiler
   #
   # Parameters:
   #  _sources - name of list with sources
   #  _obj - name of list for target objects
   #
   MACRO(WIX_COMPILE_ALL _target _sources _extra_dep)
     DBG_MSG("WIX compile all: ${${_sources}}, dependencies: ${${_extra_dep}}")
   
     ADD_CUSTOM_COMMAND( 
         OUTPUT    ${_target}
         COMMAND   ${WIX_CANDLE}
         ARGS      ${WIX_CANDLE_FLAGS} -out "${_target}" ${${_sources}}
         DEPENDS   ${${_sources}} ${${_extra_dep}}
         COMMENT   "Compiling ${${_sources}} -> ${_target}"
       )
   
   ENDMACRO(WIX_COMPILE_ALL)
   
   
   #
   # Link MSI file
   #
   # Parameters
   #  _target - Name of target file
   #  _sources - Name of list with sources
   #
   MACRO(WIX_LINK _target _sources _loc_files)
     DBG_MSG("WIX command: ${WIX_LIGHT}\n WIX target: ${_target} objs: ${${_sources}}")
   
     SET( WIX_LINK_FLAGS_A "" )
     # Add localization
     FOREACH (_current_FILE ${${_loc_files}})
       SET( WIX_LINK_FLAGS_A ${WIX_LINK_FLAGS_A} -loc "${_current_FILE}" )
       DBG_MSG("WIX link localization: ${_current_FILE}")
     ENDFOREACH (_current_FILE)
     DBG_MSG("WIX link flags: ${WIX_LINK_FLAGS_A}")
   
     ADD_CUSTOM_COMMAND( 
         OUTPUT    ${_target}
         COMMAND   ${WIX_LIGHT}
         ARGS      ${WIX_LINK_FLAGS_A} -out "${_target}" ${${_sources}}
         DEPENDS   ${${_sources}}
         COMMENT   "Linking ${${_sources}} -> ${_target}"
       )
   
   ENDMACRO(WIX_LINK)

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