# FIND_PACKAGE_HANDLE_STANDARD_ARGS(NAME (DEFAULT_MSG|"Custom failure message") VAR1 ... ) # This macro is intended to be used in FindXXX.cmake modules files. # It handles the REQUIRED and QUIET argument to FIND_PACKAGE() and # it also sets the <UPPERCASED_NAME>_FOUND variable. # The package is found if all variables listed are TRUE. # Example: # # FIND_PACKAGE_HANDLE_STANDARD_ARGS(LibXml2 DEFAULT_MSG LIBXML2_LIBRARIES LIBXML2_INCLUDE_DIR) # # LibXml2 is considered to be found, if both LIBXML2_LIBRARIES and # LIBXML2_INCLUDE_DIR are valid. Then also LIBXML2_FOUND is set to TRUE. # If it is not found and REQUIRED was used, it fails with FATAL_ERROR, # independent whether QUIET was used or not. # If it is found, the location is reported using the VAR1 argument, so # here a message "Found LibXml2: /usr/lib/libxml2.so" will be printed out. # If the second argument is DEFAULT_MSG, the message in the failure case will # be "Could NOT find LibXml2", if you don't like this message you can specify # your own custom failure message there. INCLUDE(FindPackageMessage) FUNCTION(FIND_PACKAGE_HANDLE_STANDARD_ARGS _NAME _FAIL_MSG _VAR1 ) IF("${_FAIL_MSG}" STREQUAL "DEFAULT_MSG") SET(_FAIL_MESSAGE "Could NOT find ${_NAME}") ELSE("${_FAIL_MSG}" STREQUAL "DEFAULT_MSG") SET(_FAIL_MESSAGE "${_FAIL_MSG}") ENDIF("${_FAIL_MSG}" STREQUAL "DEFAULT_MSG") STRING(TOUPPER ${_NAME} _NAME_UPPER) # collect all variables which were not found, so they can be printed, so the # user knows better what went wrong (#6375) SET(MISSING_VARS "") SET(DETAILS "") SET(${_NAME_UPPER}_FOUND TRUE) IF(NOT ${_VAR1}) SET(${_NAME_UPPER}_FOUND FALSE) SET(MISSING_VARS " ${_VAR1}") ELSE(NOT ${_VAR1}) SET(DETAILS "${DETAILS}[${${_VAR1}}]") ENDIF(NOT ${_VAR1}) # check if all passed variables are valid FOREACH(_CURRENT_VAR ${ARGN}) IF(NOT ${_CURRENT_VAR}) SET(${_NAME_UPPER}_FOUND FALSE) SET(MISSING_VARS "${MISSING_VARS} ${_CURRENT_VAR}") ELSE(NOT ${_CURRENT_VAR}) SET(DETAILS "${DETAILS}[${${_CURRENT_VAR}}]") ENDIF(NOT ${_CURRENT_VAR}) ENDFOREACH(_CURRENT_VAR) IF (${_NAME_UPPER}_FOUND) FIND_PACKAGE_MESSAGE(${_NAME} "Found ${_NAME}: ${${_VAR1}}" "${DETAILS}") ELSE (${_NAME_UPPER}_FOUND) IF (${_NAME}_FIND_REQUIRED) MESSAGE(FATAL_ERROR "${_FAIL_MESSAGE} (missing: ${MISSING_VARS})") ELSE (${_NAME}_FIND_REQUIRED) IF (NOT ${_NAME}_FIND_QUIETLY) MESSAGE(STATUS "${_FAIL_MESSAGE} (missing: ${MISSING_VARS})") ENDIF (NOT ${_NAME}_FIND_QUIETLY) ENDIF (${_NAME}_FIND_REQUIRED) ENDIF (${_NAME_UPPER}_FOUND) SET(${_NAME_UPPER}_FOUND ${${_NAME_UPPER}_FOUND} PARENT_SCOPE) ENDFUNCTION(FIND_PACKAGE_HANDLE_STANDARD_ARGS)