2023-10-30 06:33:08 +08:00
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# Copyright (C) 2022 The Qt Company Ltd.
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# SPDX-License-Identifier: BSD-3-Clause
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# We can't create the same interface imported target multiple times, CMake will complain if we do
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# that. This can happen if the find_package call is done in multiple different subdirectories.
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if(TARGET WrapOpenGL::WrapOpenGL)
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set(WrapOpenGL_FOUND ON)
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return()
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endif()
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set(WrapOpenGL_FOUND OFF)
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find_package(OpenGL ${WrapOpenGL_FIND_VERSION})
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if (OpenGL_FOUND)
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set(WrapOpenGL_FOUND ON)
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add_library(WrapOpenGL::WrapOpenGL INTERFACE IMPORTED)
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if(APPLE)
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2023-11-02 01:02:52 +08:00
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# CMake 3.27 and older:
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2023-10-30 06:33:08 +08:00
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# On Darwin platforms FindOpenGL sets IMPORTED_LOCATION to the absolute path of the library
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# within the framework. This ends up as an absolute path link flag, which we don't want,
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# because that makes our .prl files un-relocatable.
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# Extract the framework path instead, and use that in INTERFACE_LINK_LIBRARIES,
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2023-11-02 01:02:52 +08:00
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# which CMake ends up transforming into a relocatable -framework flag.
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2023-10-30 06:33:08 +08:00
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# See https://gitlab.kitware.com/cmake/cmake/-/issues/20871 for details.
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2023-11-02 01:02:52 +08:00
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#
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# CMake 3.28 and above:
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# IMPORTED_LOCATION is the absolute path the the OpenGL.framework folder.
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2023-10-30 06:33:08 +08:00
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get_target_property(__opengl_fw_lib_path OpenGL::GL IMPORTED_LOCATION)
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2023-11-02 01:02:52 +08:00
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if(__opengl_fw_lib_path AND NOT __opengl_fw_lib_path MATCHES "/([^/]+)\\.framework$")
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2023-10-30 06:33:08 +08:00
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get_filename_component(__opengl_fw_path "${__opengl_fw_lib_path}" DIRECTORY)
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endif()
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if(NOT __opengl_fw_path)
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# Just a safety measure in case if no OpenGL::GL target exists.
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set(__opengl_fw_path "-framework OpenGL")
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endif()
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find_library(WrapOpenGL_AGL NAMES AGL)
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if(WrapOpenGL_AGL)
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set(__opengl_agl_fw_path "${WrapOpenGL_AGL}")
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endif()
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if(NOT __opengl_agl_fw_path)
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set(__opengl_agl_fw_path "-framework AGL")
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endif()
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target_link_libraries(WrapOpenGL::WrapOpenGL INTERFACE ${__opengl_fw_path})
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target_link_libraries(WrapOpenGL::WrapOpenGL INTERFACE ${__opengl_agl_fw_path})
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else()
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target_link_libraries(WrapOpenGL::WrapOpenGL INTERFACE OpenGL::GL)
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endif()
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endif()
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(WrapOpenGL DEFAULT_MSG WrapOpenGL_FOUND)
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