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Diffstat (limited to 'cmake/CheckHasModule.cmake')
| -rw-r--r-- | cmake/CheckHasModule.cmake | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/cmake/CheckHasModule.cmake b/cmake/CheckHasModule.cmake new file mode 100644 index 0000000..df160d0 --- /dev/null +++ b/cmake/CheckHasModule.cmake @@ -0,0 +1,47 @@ +# Remmina - The GTK+ Remote Desktop Client +# +# Taken from stackoverflow https://stackoverflow.com/questions/15706318/check-if-cmake-module-exists +# +# This makes use of the fact that if a package configuration file isn't found for VAR, then a cache variable VAR_DIR is set to VAR_DIR-NOTFOUND. So if the package configuration file is found, either this variable isn't defined, or it's set to a valid path (regardless of whether the find_package finds the requested package). +# +# So, if you do +# +# CheckHasModule(Spurious) +# CheckHasModule(Threads) +# message("\${HAS_MODULE_Spurious} - ${HAS_MODULE_Spurious}") +# message("\${HAS_MODULE_Threads} - ${HAS_MODULE_Threads}") +# +# your output should be: +# +# ${HAS_MODULE_Spurious} - FALSE +# ${HAS_MODULE_Threads} - TRUE +# +# +# +# Copyright (C) 2019 Antenore Gatta, Giovanni Panozzo +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 51 Franklin Street, Fifth Floor, +# Boston, MA 02110-1301, USA. + +function(CheckHasModule Module) + find_package(${Module} QUIET) + if(NOT DEFINED ${Module}_DIR) + set(HAS_MODULE_${Module} TRUE PARENT_SCOPE) + elseif(${Module}_DIR) + set(HAS_MODULE_${Module} TRUE PARENT_SCOPE) + else() + set(HAS_MODULE_${Module} FALSE PARENT_SCOPE) + endif() +endfunction() |