OpenSubdiv/cmake/FindGLEW.cmake
manuelk fcf01afb19 Use CMake HINTS to override dependency locations
- fix cmake modules to search explicit locations ahead of default system paths

fixes #388
2015-02-10 13:13:39 -08:00

129 lines
3.6 KiB
CMake

#
# Copyright 2013 Pixar
#
# Licensed under the Apache License, Version 2.0 (the "Apache License")
# with the following modification; you may not use this file except in
# compliance with the Apache License and the following modification to it:
# Section 6. Trademarks. is deleted and replaced with:
#
# 6. Trademarks. This License does not grant permission to use the trade
# names, trademarks, service marks, or product names of the Licensor
# and its affiliates, except as required to comply with Section 4(c) of
# the License and to reproduce the content of the NOTICE file.
#
# You may obtain a copy of the Apache License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the Apache License with the above modification is
# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the Apache License for the specific
# language governing permissions and limitations under the Apache License.
#
# Try to find GLEW library and include path.
# Once done this will define
#
# GLEW_FOUND
# GLEW_INCLUDE_DIR
# GLEW_LIBRARY
#
include(FindPackageHandleStandardArgs)
if (WIN32)
find_path(GLEW_INCLUDE_DIR
NAMES
GL/glew.h
HINTS
"${GLEW_LOCATION}/include"
"$ENV{GLEW_LOCATION}/include"
PATHS
"$ENV{PROGRAMFILES}/GLEW/include"
"${PROJECT_SOURCE_DIR}/extern/glew/include"
DOC "The directory where GL/glew.h resides" )
if ("${CMAKE_GENERATOR}" MATCHES "[Ww]in64")
set(ARCH x64)
else()
set(ARCH x86)
endif()
find_library(GLEW_LIBRARY
NAMES
glew GLEW glew32s glew32
HINTS
"${GLEW_LOCATION}/lib"
"$ENV{GLEW_LOCATION}/lib"
PATHS
"$ENV{PROGRAMFILES}/GLEW/lib"
"${PROJECT_SOURCE_DIR}/extern/glew/bin"
"${PROJECT_SOURCE_DIR}/extern/glew/lib"
PATH_SUFFIXES
Release/${ARCH}
DOC "The GLEW library")
endif ()
if (${CMAKE_HOST_UNIX})
find_path( GLEW_INCLUDE_DIR
NAMES
GL/glew.h
HINTS
"${GLEW_LOCATION}/include"
"$ENV{GLEW_LOCATION}/include"
PATHS
/usr/include
/usr/local/include
/sw/include
/opt/local/include
NO_DEFAULT_PATH
DOC "The directory where GL/glew.h resides"
)
find_library( GLEW_LIBRARY
NAMES
GLEW glew
HINTS
"${GLEW_LOCATION}/lib"
"$ENV{GLEW_LOCATION}/lib"
PATHS
/usr/lib64
/usr/lib
/usr/lib/${CMAKE_LIBRARY_ARCHITECTURE}
/usr/local/lib64
/usr/local/lib
/sw/lib
/opt/local/lib
NO_DEFAULT_PATH
DOC "The GLEW library")
endif ()
if (GLEW_INCLUDE_DIR AND EXISTS "${GLEW_INCLUDE_DIR}/GL/glew.h")
file(STRINGS "${GLEW_INCLUDE_DIR}/GL/glew.h" GLEW_4_2 REGEX "^#define GL_VERSION_4_2.*$")
if (GLEW_4_2)
set(OPENGL_4_2_FOUND TRUE)
else ()
message(WARNING
"glew-1.7.0 or newer needed for supporting OpenGL 4.2 dependent features"
)
endif ()
file(STRINGS "${GLEW_INCLUDE_DIR}/GL/glew.h" GLEW_4_3 REGEX "^#define GL_VERSION_4_3.*$")
if (GLEW_4_3)
SET(OPENGL_4_3_FOUND TRUE)
else ()
message(WARNING
"glew-1.9.0 or newer needed for supporting OpenGL 4.3 dependent features"
)
endif ()
endif ()
find_package_handle_standard_args(GLEW
REQUIRED_VARS
GLEW_INCLUDE_DIR
GLEW_LIBRARY
)