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#-------------------------------------------------------------------
# This file is stolen from part of the CMake build system for OGRE (Object-oriented Graphics Rendering Engine) http://www.ogre3d.org/
#
# The contents of this file are placed in the public domain. Feel
# free to make use of it in any way you like.
#-------------------------------------------------------------------
# - Try to find OpenGLES and EGL
# Once done this will define
#
# OPENGLES2_FOUND - system has OpenGLES
# OPENGLES2_INCLUDE_DIR - the GL include directory
# OPENGLES2_LIBRARIES - Link these to use OpenGLES
#
# EGL_FOUND - system has EGL
# EGL_INCLUDE_DIR - the EGL include directory
# EGL_LIBRARIES - Link these to use EGL
# Win32, Apple, and Android are not tested!
# Linux tested and works
if(WIN32)
if(CYGWIN)
find_path(OPENGLES2_INCLUDE_DIR GLES2/gl2.h)
find_library(OPENGLES2_LIBRARY libGLESv2)
else()
if(BORLAND)
set(OPENGLES2_LIBRARY import32 CACHE STRING "OpenGL ES 2.x library for Win32")
else()
# TODO
# set(OPENGLES_LIBRARY ${SOURCE_DIR}/Dependencies/lib/release/libGLESv2.lib CACHE STRING "OpenGL ES 2.x library for win32"
endif()
endif()
elseif(APPLE)
create_search_paths(/Developer/Platforms)
findpkg_framework(OpenGLES2)
set(OPENGLES2_LIBRARY "-framework OpenGLES")
else()
find_path(OPENGLES2_INCLUDE_DIR GLES2/gl2.h
PATHS /usr/openwin/share/include
/opt/graphics/OpenGL/include
/usr/X11R6/include
/usr/include
)
find_library(OPENGLES2_LIBRARY
NAMES GLESv2
PATHS /opt/graphics/OpenGL/lib
/usr/openwin/lib
/usr/shlib /usr/X11R6/lib
/usr/lib
)
if(NOT BUILD_ANDROID)
find_path(EGL_INCLUDE_DIR EGL/egl.h
PATHS /usr/openwin/share/include
/opt/graphics/OpenGL/include
/usr/X11R6/include
/usr/include
)
find_library(EGL_LIBRARY
NAMES EGL
PATHS /opt/graphics/OpenGL/lib
/usr/openwin/lib
/usr/shlib
/usr/X11R6/lib
/usr/lib
)
# On Unix OpenGL usually requires X11.
# It doesn't require X11 on OSX.
if(OPENGLES2_LIBRARY)
if(NOT X11_FOUND)
include(FindX11)
endif()
if(X11_FOUND)
set(OPENGLES2_LIBRARIES ${X11_LIBRARIES})
endif()
endif()
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