diff options
Diffstat (limited to 'Modules/FindPackageHandleStandardArgs.cmake')
| -rw-r--r-- | Modules/FindPackageHandleStandardArgs.cmake | 42 |
1 files changed, 39 insertions, 3 deletions
diff --git a/Modules/FindPackageHandleStandardArgs.cmake b/Modules/FindPackageHandleStandardArgs.cmake index b503357..cdcf9ca 100644 --- a/Modules/FindPackageHandleStandardArgs.cmake +++ b/Modules/FindPackageHandleStandardArgs.cmake @@ -19,7 +19,8 @@ # # The second mode is more powerful and also supports version checking: # FIND_PACKAGE_HANDLE_STANDARD_ARGS(NAME [REQUIRED_VARS <var1>...<varN>] -# [VERSION_VAR <versionvar> +# [VERSION_VAR <versionvar>] +# [HANDLE_COMPONENTS] # [CONFIG_MODE] # [FAIL_MESSAGE "Custom failure message"] ) # @@ -32,6 +33,11 @@ # in the find_package() call. The EXACT keyword is also handled. The default # messages include information about the required version and the version # which has been actually found, both if the version is ok or not. +# If the package supports components, use the HANDLE_COMPONENTS option to enable +# handling them. In this case, find_package_handle_standard_args() will report +# which components have been found and which are missing, and the <NAME>_FOUND +# variable will be set to FALSE if any of the required components (i.e. not the +# ones listed after OPTIONAL_COMPONENTS) are missing. # Use the option CONFIG_MODE if your FindXXX.cmake module is a wrapper for # a find_package(... NO_MODULE) call. In this case VERSION_VAR will be set # to <NAME>_VERSION and the macro will automatically check whether the @@ -128,7 +134,7 @@ FUNCTION(FIND_PACKAGE_HANDLE_STANDARD_ARGS _NAME _FIRST_ARG) # set up the arguments for CMAKE_PARSE_ARGUMENTS and check whether we are in # new extended or in the "old" mode: - SET(options CONFIG_MODE) + SET(options CONFIG_MODE HANDLE_COMPONENTS) SET(oneValueArgs FAIL_MESSAGE VERSION_VAR) SET(multiValueArgs REQUIRED_VARS) SET(_KEYWORDS_FOR_EXTENDED_MODE ${options} ${oneValueArgs} ${multiValueArgs} ) @@ -189,6 +195,36 @@ FUNCTION(FIND_PACKAGE_HANDLE_STANDARD_ARGS _NAME _FIRST_ARG) ENDIF(NOT ${_CURRENT_VAR}) ENDFOREACH(_CURRENT_VAR) + # component handling + UNSET(FOUND_COMPONENTS_MSG) + UNSET(MISSING_COMPONENTS_MSG) + + IF(FPHSA_HANDLE_COMPONENTS) + FOREACH(comp ${${_NAME}_FIND_COMPONENTS}) + IF(${_NAME}_${comp}_FOUND) + + IF(NOT DEFINED FOUND_COMPONENTS_MSG) + SET(FOUND_COMPONENTS_MSG "found components: ") + ENDIF() + SET(FOUND_COMPONENTS_MSG "${FOUND_COMPONENTS_MSG} ${comp}") + + ELSE() + + IF(NOT DEFINED MISSING_COMPONENTS_MSG) + SET(MISSING_COMPONENTS_MSG "missing components: ") + ENDIF() + SET(MISSING_COMPONENTS_MSG "${MISSING_COMPONENTS_MSG} ${comp}") + + IF(${_NAME}_FIND_REQUIRED_${comp}) + SET(${_NAME_UPPER}_FOUND FALSE) + SET(MISSING_VARS "${MISSING_VARS} ${comp}") + ENDIF() + + ENDIF() + ENDFOREACH(comp) + SET(COMPONENT_MSG "${FOUND_COMPONENTS_MSG} ${MISSING_COMPONENTS_MSG}") + SET(DETAILS "${DETAILS}[c${COMPONENT_MSG}]") + ENDIF(FPHSA_HANDLE_COMPONENTS) # version handling: SET(VERSION_MSG "") @@ -240,7 +276,7 @@ FUNCTION(FIND_PACKAGE_HANDLE_STANDARD_ARGS _NAME _FIRST_ARG) # print the result: IF (${_NAME_UPPER}_FOUND) - FIND_PACKAGE_MESSAGE(${_NAME} "Found ${_NAME}: ${${_FIRST_REQUIRED_VAR}} ${VERSION_MSG}" "${DETAILS}") + FIND_PACKAGE_MESSAGE(${_NAME} "Found ${_NAME}: ${${_FIRST_REQUIRED_VAR}} ${VERSION_MSG} ${COMPONENT_MSG}" "${DETAILS}") ELSE (${_NAME_UPPER}_FOUND) IF(FPHSA_CONFIG_MODE) |