1fb9f6f13a
The main advantage of SPDX license identifiers over the traditional license headers is that it's more difficult to overlook inappropriate licenses for kwin, for example GPL 3. We also don't have to copy a lot of boilerplate text. In order to create this change, I ran licensedigger -r -c from the toplevel source directory.
59 lines
2 KiB
CMake
59 lines
2 KiB
CMake
#.rest:
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# FindEpoll
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# --------------
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#
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# Try to find epoll or epoll-shim on this system. This finds:
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# - some shim on Unix like systems (FreeBSD), or
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# - the kernel's epoll on Linux systems.
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#
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# This will define the following variables:
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#
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# ``epoll_FOUND``
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# True if epoll is available
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# ``epoll_LIBRARIES``
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# This has to be passed to target_link_libraries()
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# ``epoll_INCLUDE_DIRS``
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# This has to be passed to target_include_directories()
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#
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# On Linux, the libraries and include directories are empty,
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# even though epoll_FOUND may be set to TRUE. This is because
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# no special includes or libraries are needed. On other systems
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# these may be needed to use epoll.
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#=============================================================================
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# SPDX-FileCopyrightText: 2019 Tobias C. Berner <tcberner@FreeBSD.org>
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#
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# SPDX-License-Identifier: BSD-2-Clause
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#=============================================================================
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find_path(epoll_INCLUDE_DIRS sys/epoll.h PATH_SUFFIXES libepoll-shim)
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if(epoll_INCLUDE_DIRS)
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# On Linux there is no library to link against, on the BSDs there is.
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# On the BSD's, epoll is implemented through a library, libepoll-shim.
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if( CMAKE_SYSTEM_NAME MATCHES "Linux")
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set(epoll_FOUND TRUE)
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set(epoll_LIBRARIES "")
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set(epoll_INCLUDE_DIRS "")
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else()
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find_library(epoll_LIBRARIES NAMES epoll-shim)
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(epoll
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FOUND_VAR
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epoll_FOUND
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REQUIRED_VARS
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epoll_LIBRARIES
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epoll_INCLUDE_DIRS
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)
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mark_as_advanced(epoll_LIBRARIES epoll_INCLUDE_DIRS)
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include(FeatureSummary)
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set_package_properties(epoll PROPERTIES
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URL "https://github.com/FreeBSDDesktop/epoll-shim"
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DESCRIPTION "small epoll implementation using kqueue"
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)
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endif()
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else()
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set(epoll_FOUND FALSE)
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endif()
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mark_as_advanced(epoll_LIBRARIES epoll_INCLUDE_DIRS)
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