# Manages the shared library creation/use 
# * Creates an option ${LIBRARY_NAME}_BUILD_SHARED 
# * Generates the file ${LIBRARY_NAME}DLLImportExport.h which 
#   defines the symbols ${LIBRARY_NAME}_EXPORT and ${LIBRARY_NAME}_CDECL
#   to be used in exported classes/functions declarations
MACRO(CREA_MANAGE_SHARED_LIBRARY LIBRARY_NAME)

  # STATIC OR DYNAMIC (SHARED) ? 
  OPTION( ${LIBRARY_NAME}_BUILD_SHARED 
    "Build ${LIBRARY_NAME} as a shared library (dynamic) ?" ON)
  IF (${LIBRARY_NAME}_BUILD_SHARED)
    SET(${LIBRARY_NAME}_SHARED SHARED)
    CREA_DEFINE(${LIBRARY_NAME}_BUILD_SHARED)
  ENDIF(${LIBRARY_NAME}_BUILD_SHARED)
  
  CREA_DEFINE(${LIBRARY_NAME}_EXPORT_SYMBOLS)

  # ADDS CURRENT BINARY DIR TO INCLUDE DIRS
  INCLUDE_DIRECTORIES(${CMAKE_CURRENT_BINARY_DIR})

  # CONFIGURES ${LIBRARY_NAME}DLLImportExport.h
  CONFIGURE_FILE(
    ${CREA_CMAKE_DIR}/LIBRARY_NAMEDLLImportExport.h.in
    ${CMAKE_CURRENT_BINARY_DIR}/${LIBRARY_NAME}DLLImportExport.h
    @ONLY IMMEDIATE
    )
  # ADDS IT TO THE LIST OF HEADERS
  SET(${LIBRARY_NAME}_HEADERS
    ${${LIBRARY_NAME}_HEADERS}
    ${CMAKE_CURRENT_BINARY_DIR}/${LIBRARY_NAME}DLLImportExport.h
    )
  

ENDMACRO(CREA_MANAGE_SHARED_LIBRARY LIBRARY_NAME)