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#.rst:
# Find OpenGL ES 2
# ----------------
#
# Finds the OpenGL ES 2 library. This module defines:
#
# OpenGLES2_FOUND - True if OpenGL ES 2 library is found
# OpenGLES2::OpenGLES2 - OpenGL ES 2 imported target
#
# Additionally these variables are defined for internal usage:
#
# OPENGLES2_LIBRARY - OpenGL ES 2 library
# OPENGLES2_INCLUDE_DIR - Include dir
#
#
# This file is part of Magnum.
#
# Copyright © 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017
# Vladimír Vondruš <mosra@centrum.cz>
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
#
# In Emscripten OpenGL ES 2 is linked automatically, thus no need to find the
# library.
if(NOT CORRADE_TARGET_EMSCRIPTEN)
find_library(OPENGLES2_LIBRARY NAMES
GLESv2
# ANGLE (CMake doesn't search for lib prefix on Windows)
libGLESv2
# iOS
OpenGLES)
set(OPENGLES2_LIBRARY_NEEDED OPENGLES2_LIBRARY)
endif()
# Include dir
find_path(OPENGLES2_INCLUDE_DIR NAMES
GLES2/gl2.h
# iOS
ES2/gl.h)
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(OpenGLES2 DEFAULT_MSG
${OPENGLES2_LIBRARY_NEEDED}
OPENGLES2_INCLUDE_DIR)
if(NOT TARGET OpenGLES2::OpenGLES2)
if(OPENGLES2_LIBRARY_NEEDED)
# Work around BUGGY framework support on macOS
# http://public.kitware.com/pipermail/cmake/2016-April/063179.html
if(CORRADE_TARGET_APPLE AND ${OPENGLES2_LIBRARY} MATCHES "\\.framework$")
add_library(OpenGLES2::OpenGLES2 INTERFACE IMPORTED)
set_property(TARGET OpenGLES2::OpenGLES2 APPEND PROPERTY
INTERFACE_LINK_LIBRARIES ${OPENGLES2_LIBRARY})
else()
add_library(OpenGLES2::OpenGLES2 UNKNOWN IMPORTED)
set_property(TARGET OpenGLES2::OpenGLES2 PROPERTY
IMPORTED_LOCATION ${OPENGLES2_LIBRARY})
endif()
else()
# This won't work in CMake 2.8.12, but that affects Emscripten only so
# I assume people building for that are not on that crap old Ubuntu
# 14.04 LTS
add_library(OpenGLES2::OpenGLES2 INTERFACE IMPORTED)
endif()
set_property(TARGET OpenGLES2::OpenGLES2 PROPERTY
INTERFACE_INCLUDE_DIRECTORIES ${OPENGLES2_INCLUDE_DIR})
endif()