1# Copyright (c) 2009 Boudewijn Rempt <boud@valdyas.org>
2#
3# Redistribution and use is allowed according to the terms of the BSD license.
4# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
5#
6# - try to find glew library and include files
7#  GLEW_INCLUDE_DIR, where to find GL/glew.h, etc.
8#  GLEW_LIBRARIES, the libraries to link against
9#  GLEW_FOUND, If false, do not try to use GLEW.
10# Also defined, but not for general use are:
11#  GLEW_GLEW_LIBRARY = the full path to the glew library.
12
13IF (WIN32)
14
15  IF(CYGWIN)
16
17    FIND_PATH( GLEW_INCLUDE_DIR GL/glew.h)
18
19    FIND_LIBRARY( GLEW_GLEW_LIBRARY glew32
20      ${OPENGL_LIBRARY_DIR}
21      /usr/lib/w32api
22      /usr/X11R6/lib
23    )
24
25
26  ELSE(CYGWIN)
27
28    FIND_PATH( GLEW_INCLUDE_DIR GL/glew.h
29      $ENV{GLEW_ROOT_PATH}/include
30    )
31
32    FIND_LIBRARY( GLEW_GLEW_LIBRARY
33      NAMES glew glew32
34      PATHS
35      $ENV{GLEW_ROOT_PATH}/lib
36      ${OPENGL_LIBRARY_DIR}
37    )
38
39  ENDIF(CYGWIN)
40
41ELSE (WIN32)
42
43  IF (APPLE)
44# These values for Apple could probably do with improvement.
45    FIND_PATH( GLEW_INCLUDE_DIR glew.h
46      /System/Library/Frameworks/GLEW.framework/Versions/A/Headers
47      ${OPENGL_LIBRARY_DIR}
48    )
49    SET(GLEW_GLEW_LIBRARY "-framework GLEW" CACHE STRING "GLEW library for OSX")
50    SET(GLEW_cocoa_LIBRARY "-framework Cocoa" CACHE STRING "Cocoa framework for OSX")
51  ELSE (APPLE)
52
53    FIND_PATH( GLEW_INCLUDE_DIR GL/glew.h
54      /usr/include/GL
55      /usr/openwin/share/include
56      /usr/openwin/include
57      /usr/X11R6/include
58      /usr/include/X11
59      /opt/graphics/OpenGL/include
60      /opt/graphics/OpenGL/contrib/libglew
61    )
62
63    FIND_LIBRARY( GLEW_GLEW_LIBRARY GLEW
64      /usr/openwin/lib
65      /usr/X11R6/lib
66    )
67
68  ENDIF (APPLE)
69
70ENDIF (WIN32)
71
72SET( GLEW_FOUND "NO" )
73IF(GLEW_INCLUDE_DIR)
74  IF(GLEW_GLEW_LIBRARY)
75    # Is -lXi and -lXmu required on all platforms that have it?
76    # If not, we need some way to figure out what platform we are on.
77    SET( GLEW_LIBRARIES
78      ${GLEW_GLEW_LIBRARY}
79      ${GLEW_cocoa_LIBRARY}
80    )
81    SET( GLEW_FOUND "YES" )
82
83#The following deprecated settings are for backwards compatibility with CMake1.4
84    SET (GLEW_LIBRARY ${GLEW_LIBRARIES})
85    SET (GLEW_INCLUDE_PATH ${GLEW_INCLUDE_DIR})
86
87  ENDIF(GLEW_GLEW_LIBRARY)
88ENDIF(GLEW_INCLUDE_DIR)
89
90IF(GLEW_FOUND)
91  IF(NOT GLEW_FIND_QUIETLY)
92    MESSAGE(STATUS "Found Glew: ${GLEW_LIBRARIES}")
93  ENDIF(NOT GLEW_FIND_QUIETLY)
94ELSE(GLEW_FOUND)
95  IF(GLEW_FIND_REQUIRED)
96    MESSAGE(FATAL_ERROR "Could not find Glew")
97  ENDIF(GLEW_FIND_REQUIRED)
98ENDIF(GLEW_FOUND)
99
100MARK_AS_ADVANCED(
101  GLEW_INCLUDE_DIR
102  GLEW_GLEW_LIBRARY
103  GLEW_Xmu_LIBRARY
104  GLEW_Xi_LIBRARY
105)
106