52 lines
2.2 KiB
CMake
52 lines
2.2 KiB
CMake
# - FindOptionalPackage
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# Enable or disable optional packages. Also force optional packages.
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#
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# This module defines the following macros:
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# find_required_package : find a required package, can not be disabled
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# find_suggested_package : find a suggested package - required but can be disabled
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# find_optional_package : find an optional package - required only if enabled
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#
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#=============================================================================
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# Copyright 2011 Nils Andresen <nils@nils-andresen.de>
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#=============================================================================
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macro(find_required_package _normal_package)
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find_package(${_normal_package} REQUIRED)
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endmacro(find_required_package)
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macro(find_suggested_package _normal_package)
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string(TOUPPER ${_normal_package} _upper_package)
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option(WITH_${_upper_package} "Add dependency to ${_normal_package} - recommended" ON)
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if(WITH_${_upper_package})
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message(STATUS "Finding suggested package ${_normal_package}.")
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message(STATUS " Disable this using \"-DWITH_${_upper_package}=OFF\".")
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find_package(${_normal_package} REQUIRED)
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endif(WITH_${_upper_package})
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endmacro(find_suggested_package)
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macro(find_optional_package _normal_package)
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string(TOUPPER ${_normal_package} _upper_package)
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option(WITH_${_upper_package} "Add dependency to ${_normal_package}" OFF)
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if(WITH_${_upper_package})
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find_package(${_normal_package} REQUIRED)
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else(WITH_${_upper_package})
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message(STATUS "Skipping optional package ${_normal_package}.")
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message(STATUS " Enable this using \"-DWITH_${_upper_package}=ON\".")
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endif(WITH_${_upper_package})
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endmacro(find_optional_package)
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