| # =================================================================== |
| # Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF licenses this file |
| # to you under the Apache License, Version 2.0 (the |
| # "License"); you may not use this file except in compliance |
| # with the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, |
| # software distributed under the License is distributed on an |
| # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| # KIND, either express or implied. See the License for the |
| # specific language governing permissions and limitations |
| # under the License. |
| # =================================================================== |
| |
| function(_apru_config _program _varname _separate _regexp) |
| execute_process(COMMAND ${_program} ${ARGN} |
| OUTPUT_VARIABLE _apru_output |
| RESULT_VARIABLE _apru_failed) |
| |
| if(_apru_failed) |
| message(FATAL_ERROR "${_program} ${ARGN} failed") |
| else() |
| |
| # Join multi-line outupt |
| string(REGEX REPLACE "[\r\n]" "" _apru_output "${_apru_output}") |
| |
| # Optionally apply the regular expression filter |
| if(NOT ${_regexp} STREQUAL "") |
| string(REGEX REPLACE "${_regexp}" " " _apru_output "${_apru_output}") |
| endif() |
| |
| # Remove leading and trailing spaces |
| string(REGEX REPLACE "^ +" "" _apru_output "${_apru_output}") |
| string(REGEX REPLACE " +$" "" _apru_output "${_apru_output}") |
| |
| # Optionally split the result into an argument list |
| if(${_separate}) |
| separate_arguments(_apru_output) |
| endif() |
| |
| set(${_varname} "${_apru_output}" PARENT_SCOPE) |
| endif() |
| endfunction(_apru_config) |