xref: /curl/CMake/Utilities.cmake (revision c2889a7b)
1#***************************************************************************
2#                                  _   _ ____  _
3#  Project                     ___| | | |  _ \| |
4#                             / __| | | | |_) | |
5#                            | (__| |_| |  _ <| |___
6#                             \___|\___/|_| \_\_____|
7#
8# Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
9#
10# This software is licensed as described in the file COPYING, which
11# you should have received as part of this distribution. The terms
12# are also available at https://curl.se/docs/copyright.html.
13#
14# You may opt to use, copy, modify, merge, publish, distribute and/or sell
15# copies of the Software, and permit persons to whom the Software is
16# furnished to do so, under the terms of the COPYING file.
17#
18# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19# KIND, either express or implied.
20#
21# SPDX-License-Identifier: curl
22#
23###########################################################################
24# File containing various utilities
25
26# Returns number of arguments that evaluate to true
27function(count_true _output_count_var)
28  set(lst_len 0)
29  foreach(option_var IN LISTS ARGN)
30    if(${option_var})
31      math(EXPR lst_len "${lst_len} + 1")
32    endif()
33  endforeach()
34  set(${_output_count_var} ${lst_len} PARENT_SCOPE)
35endfunction()
36