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# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file Copyright.txt or https://cmake.org/licensing for details.
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#[=======================================================================[.rst:
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FindGLEW
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--------
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Find the OpenGL Extension Wrangler Library (GLEW)
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Input Variables
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^^^^^^^^^^^^^^^
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The following variables may be set to influence this module’s behavior:
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``GLEW_USE_STATIC_LIBS``
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to find and create :prop_tgt:`IMPORTED` target for static linkage.
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``GLEW_VERBOSE``
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to output a detailed log of this module.
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Imported Targets
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^^^^^^^^^^^^^^^^
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This module defines the following :ref:`Imported Targets <Imported Targets>`:
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``GLEW::glew``
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The GLEW shared library.
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``GLEW::glew_s``
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The GLEW static library, if ``GLEW_USE_STATIC_LIBS`` is set to ``TRUE``.
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``GLEW::GLEW``
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Duplicates either ``GLEW::glew`` or ``GLEW::glew_s`` based on availability.
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Result Variables
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^^^^^^^^^^^^^^^^
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This module defines the following variables:
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``GLEW_INCLUDE_DIRS``
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include directories for GLEW
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``GLEW_LIBRARIES``
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libraries to link against GLEW
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``GLEW_SHARED_LIBRARIES``
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libraries to link against shared GLEW
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``GLEW_STATIC_LIBRARIES``
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libraries to link against static GLEW
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``GLEW_FOUND``
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true if GLEW has been found and can be used
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``GLEW_VERSION``
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GLEW version
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``GLEW_VERSION_MAJOR``
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GLEW major version
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``GLEW_VERSION_MINOR``
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GLEW minor version
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``GLEW_VERSION_MICRO``
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GLEW micro version
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#]=======================================================================]
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include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
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find_package(GLEW CONFIG QUIET)
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if(GLEW_FOUND)
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find_package_handle_standard_args(GLEW DEFAULT_MSG GLEW_CONFIG)
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return()
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endif()
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if(GLEW_VERBOSE)
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message(STATUS "FindGLEW: did not find GLEW CMake config file. Searching for libraries.")
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endif()
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if(APPLE)
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find_package(OpenGL QUIET)
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if(OpenGL_FOUND)
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if(GLEW_VERBOSE)
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message(STATUS "FindGLEW: Found OpenGL Framework.")
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message(STATUS "FindGLEW: OPENGL_LIBRARIES: ${OPENGL_LIBRARIES}")
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endif()
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else()
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if(GLEW_VERBOSE)
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message(STATUS "FindGLEW: could not find GLEW library.")
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endif()
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return()
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endif()
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endif()
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function(__glew_set_find_library_suffix shared_or_static)
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if((UNIX AND NOT APPLE) AND "${shared_or_static}" MATCHES "SHARED")
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set(CMAKE_FIND_LIBRARY_SUFFIXES ".so" PARENT_SCOPE)
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elseif((UNIX AND NOT APPLE) AND "${shared_or_static}" MATCHES "STATIC")
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set(CMAKE_FIND_LIBRARY_SUFFIXES ".a" PARENT_SCOPE)
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elseif(APPLE AND "${shared_or_static}" MATCHES "SHARED")
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set(CMAKE_FIND_LIBRARY_SUFFIXES ".dylib;.so" PARENT_SCOPE)
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elseif(APPLE AND "${shared_or_static}" MATCHES "STATIC")
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set(CMAKE_FIND_LIBRARY_SUFFIXES ".a" PARENT_SCOPE)
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elseif(WIN32 AND "${shared_or_static}" MATCHES "SHARED")
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set(CMAKE_FIND_LIBRARY_SUFFIXES ".lib" PARENT_SCOPE)
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elseif(WIN32 AND "${shared_or_static}" MATCHES "STATIC")
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set(CMAKE_FIND_LIBRARY_SUFFIXES ".lib;.dll.a" PARENT_SCOPE)
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endif()
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if(GLEW_VERBOSE)
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message(STATUS "FindGLEW: CMAKE_FIND_LIBRARY_SUFFIXES for ${shared_or_static}: ${CMAKE_FIND_LIBRARY_SUFFIXES}")
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endif()
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endfunction()
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if(GLEW_VERBOSE)
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if(DEFINED GLEW_USE_STATIC_LIBS)
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message(STATUS "FindGLEW: GLEW_USE_STATIC_LIBS: ${GLEW_USE_STATIC_LIBS}.")
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else()
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message(STATUS "FindGLEW: GLEW_USE_STATIC_LIBS is undefined. Treated as FALSE.")
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endif()
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endif()
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find_path(GLEW_INCLUDE_DIR GL/glew.h)
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mark_as_advanced(GLEW_INCLUDE_DIR)
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set(GLEW_INCLUDE_DIRS ${GLEW_INCLUDE_DIR})
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if(GLEW_VERBOSE)
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message(STATUS "FindGLEW: GLEW_INCLUDE_DIR: ${GLEW_INCLUDE_DIR}")
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message(STATUS "FindGLEW: GLEW_INCLUDE_DIRS: ${GLEW_INCLUDE_DIRS}")
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endif()
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if("${CMAKE_GENERATOR_PLATFORM}" MATCHES "x64" OR "${CMAKE_GENERATOR}" MATCHES "Win64")
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set(_arch "x64")
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else()
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set(_arch "Win32")
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endif()
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set(__GLEW_CURRENT_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES})
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__glew_set_find_library_suffix(SHARED)
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find_library(GLEW_SHARED_LIBRARY_RELEASE
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NAMES GLEW glew glew32
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PATH_SUFFIXES lib lib64 libx32 lib/Release/${_arch}
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PATHS ENV GLEW_ROOT)
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find_library(GLEW_SHARED_LIBRARY_DEBUG
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NAMES GLEWd glewd glew32d
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PATH_SUFFIXES lib lib64
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PATHS ENV GLEW_ROOT)
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__glew_set_find_library_suffix(STATIC)
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find_library(GLEW_STATIC_LIBRARY_RELEASE
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NAMES GLEW glew glew32s
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PATH_SUFFIXES lib lib64 libx32 lib/Release/${_arch}
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PATHS ENV GLEW_ROOT)
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find_library(GLEW_STATIC_LIBRARY_DEBUG
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NAMES GLEWds glewds glew32ds
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PATH_SUFFIXES lib lib64
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PATHS ENV GLEW_ROOT)
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set(CMAKE_FIND_LIBRARY_SUFFIXES ${__GLEW_CURRENT_FIND_LIBRARY_SUFFIXES})
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unset(__GLEW_CURRENT_FIND_LIBRARY_SUFFIXES)
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include(${CMAKE_CURRENT_LIST_DIR}/SelectLibraryConfigurations.cmake)
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select_library_configurations(GLEW_SHARED)
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select_library_configurations(GLEW_STATIC)
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if(NOT GLEW_USE_STATIC_LIBS)
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set(GLEW_LIBRARIES ${GLEW_SHARED_LIBRARY})
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else()
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set(GLEW_LIBRARIES ${GLEW_STATIC_LIBRARY})
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endif()
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if(GLEW_VERBOSE)
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message(STATUS "FindGLEW: GLEW_SHARED_LIBRARY_RELEASE: ${GLEW_SHARED_LIBRARY_RELEASE}")
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message(STATUS "FindGLEW: GLEW_STATIC_LIBRARY_RELEASE: ${GLEW_STATIC_LIBRARY_RELEASE}")
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message(STATUS "FindGLEW: GLEW_SHARED_LIBRARY_DEBUG: ${GLEW_SHARED_LIBRARY_DEBUG}")
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message(STATUS "FindGLEW: GLEW_STATIC_LIBRARY_DEBUG: ${GLEW_STATIC_LIBRARY_DEBUG}")
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message(STATUS "FindGLEW: GLEW_SHARED_LIBRARY: ${GLEW_SHARED_LIBRARY}")
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message(STATUS "FindGLEW: GLEW_STATIC_LIBRARY: ${GLEW_STATIC_LIBRARY}")
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message(STATUS "FindGLEW: GLEW_LIBRARIES: ${GLEW_LIBRARIES}")
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endif()
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# Read version from GL/glew.h file
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if(EXISTS "${GLEW_INCLUDE_DIR}/GL/glew.h")
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file(STRINGS "${GLEW_INCLUDE_DIR}/GL/glew.h" _contents REGEX "^VERSION_.+ [0-9]+")
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if(_contents)
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string(REGEX REPLACE ".*VERSION_MAJOR[ \t]+([0-9]+).*" "\\1" GLEW_VERSION_MAJOR "${_contents}")
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string(REGEX REPLACE ".*VERSION_MINOR[ \t]+([0-9]+).*" "\\1" GLEW_VERSION_MINOR "${_contents}")
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string(REGEX REPLACE ".*VERSION_MICRO[ \t]+([0-9]+).*" "\\1" GLEW_VERSION_MICRO "${_contents}")
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set(GLEW_VERSION "${GLEW_VERSION_MAJOR}.${GLEW_VERSION_MINOR}.${GLEW_VERSION_MICRO}")
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endif()
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endif()
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if(GLEW_VERBOSE)
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message(STATUS "FindGLEW: GLEW_VERSION_MAJOR: ${GLEW_VERSION_MAJOR}")
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message(STATUS "FindGLEW: GLEW_VERSION_MINOR: ${GLEW_VERSION_MINOR}")
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message(STATUS "FindGLEW: GLEW_VERSION_MICRO: ${GLEW_VERSION_MICRO}")
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message(STATUS "FindGLEW: GLEW_VERSION: ${GLEW_VERSION}")
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endif()
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find_package_handle_standard_args(GLEW
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REQUIRED_VARS GLEW_INCLUDE_DIRS GLEW_LIBRARIES
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VERSION_VAR GLEW_VERSION)
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if(NOT GLEW_FOUND)
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if(GLEW_VERBOSE)
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message(STATUS "FindGLEW: could not find GLEW library.")
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endif()
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return()
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endif()
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if(NOT TARGET GLEW::glew AND NOT GLEW_USE_STATIC_LIBS)
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if(GLEW_VERBOSE)
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message(STATUS "FindGLEW: Creating GLEW::glew imported target.")
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endif()
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add_library(GLEW::glew UNKNOWN IMPORTED)
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set_target_properties(GLEW::glew
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PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${GLEW_INCLUDE_DIRS}")
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if(APPLE)
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set_target_properties(GLEW::glew
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PROPERTIES INTERFACE_LINK_LIBRARIES OpenGL::GL)
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endif()
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if(GLEW_SHARED_LIBRARY_RELEASE)
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set_property(TARGET GLEW::glew
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APPEND
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PROPERTY IMPORTED_CONFIGURATIONS RELEASE)
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set_target_properties(GLEW::glew
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PROPERTIES IMPORTED_LOCATION_RELEASE "${GLEW_SHARED_LIBRARY_RELEASE}")
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endif()
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if(GLEW_SHARED_LIBRARY_DEBUG)
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set_property(TARGET GLEW::glew
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APPEND
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PROPERTY IMPORTED_CONFIGURATIONS DEBUG)
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set_target_properties(GLEW::glew
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PROPERTIES IMPORTED_LOCATION_DEBUG "${GLEW_SHARED_LIBRARY_DEBUG}")
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endif()
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elseif(NOT TARGET GLEW::glew_s AND GLEW_USE_STATIC_LIBS)
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if(GLEW_VERBOSE)
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message(STATUS "FindGLEW: Creating GLEW::glew_s imported target.")
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endif()
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add_library(GLEW::glew_s UNKNOWN IMPORTED)
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set_target_properties(GLEW::glew_s
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PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${GLEW_INCLUDE_DIRS}")
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if(APPLE)
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set_target_properties(GLEW::glew_s
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PROPERTIES INTERFACE_LINK_LIBRARIES OpenGL::GL)
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endif()
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if(GLEW_STATIC_LIBRARY_RELEASE)
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set_property(TARGET GLEW::glew_s
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APPEND
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PROPERTY IMPORTED_CONFIGURATIONS RELEASE)
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set_target_properties(GLEW::glew_s
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PROPERTIES IMPORTED_LOCATION_RELEASE "${GLEW_STATIC_LIBRARY_RELEASE}")
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endif()
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if(GLEW_STATIC_LIBRARY_DEBUG)
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set_property(TARGET GLEW::glew_s
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APPEND
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PROPERTY IMPORTED_CONFIGURATIONS DEBUG)
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set_target_properties(GLEW::glew_s
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PROPERTIES IMPORTED_LOCATION_DEBUG "${GLEW_STATIC_LIBRARY_DEBUG}")
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endif()
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endif()
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if(NOT TARGET GLEW::GLEW)
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if(GLEW_VERBOSE)
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message(STATUS "FindGLEW: Creating GLEW::GLEW imported target.")
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endif()
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add_library(GLEW::GLEW UNKNOWN IMPORTED)
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set_target_properties(GLEW::GLEW
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PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${GLEW_INCLUDE_DIRS}")
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if(APPLE)
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set_target_properties(GLEW::GLEW
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PROPERTIES INTERFACE_LINK_LIBRARIES OpenGL::GL)
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endif()
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if(TARGET GLEW::glew)
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if(GLEW_SHARED_LIBRARY_RELEASE)
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set_property(TARGET GLEW::GLEW
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APPEND
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PROPERTY IMPORTED_CONFIGURATIONS RELEASE)
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set_target_properties(GLEW::GLEW
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PROPERTIES IMPORTED_LOCATION_RELEASE "${GLEW_SHARED_LIBRARY_RELEASE}")
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endif()
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if(GLEW_SHARED_LIBRARY_DEBUG)
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set_property(TARGET GLEW::GLEW
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APPEND
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PROPERTY IMPORTED_CONFIGURATIONS DEBUG)
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set_target_properties(GLEW::GLEW
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PROPERTIES IMPORTED_LOCATION_DEBUG "${GLEW_SHARED_LIBRARY_DEBUG}")
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endif()
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elseif(TARGET GLEW::glew_s)
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if(GLEW_STATIC_LIBRARY_RELEASE)
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set_property(TARGET GLEW::GLEW
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APPEND
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PROPERTY IMPORTED_CONFIGURATIONS RELEASE)
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set_target_properties(GLEW::GLEW
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PROPERTIES IMPORTED_LOCATION_RELEASE "${GLEW_STATIC_LIBRARY_RELEASE}")
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endif()
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if(GLEW_STATIC_LIBRARY_DEBUG AND GLEW_USE_STATIC_LIBS)
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set_property(TARGET GLEW::GLEW
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APPEND
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PROPERTY IMPORTED_CONFIGURATIONS DEBUG)
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set_target_properties(GLEW::GLEW
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PROPERTIES IMPORTED_LOCATION_DEBUG "${GLEW_STATIC_LIBRARY_DEBUG}")
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endif()
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elseif(GLEW_VERBOSE)
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message(WARNING "FindGLEW: no `GLEW::glew` or `GLEW::glew_s` target was created. Something went wrong in FindGLEW target creation.")
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endif()
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endif()
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