CMake/Modules/FindGLUT.cmake
Brad King 86578eccf2 Simplify CMake per-source license notices
Per-source copyright/license notice headers that spell out copyright holder
names and years are hard to maintain and often out-of-date or plain wrong.
Precise contributor information is already maintained automatically by the
version control tool.  Ultimately it is the receiver of a file who is
responsible for determining its licensing status, and per-source notices are
merely a convenience.  Therefore it is simpler and more accurate for
each source to have a generic notice of the license name and references to
more detailed information on copyright holders and full license terms.

Our `Copyright.txt` file now contains a list of Contributors whose names
appeared source-level copyright notices.  It also references version control
history for more precise information.  Therefore we no longer need to spell
out the list of Contributors in each source file notice.

Replace CMake per-source copyright/license notice headers with a short
description of the license and links to `Copyright.txt` and online information
available from "https://cmake.org/licensing".  The online URL also handles
cases of modules being copied out of our source into other projects, so we
can drop our notices about replacing links with full license text.

Run the `Utilities/Scripts/filter-notices.bash` script to perform the majority
of the replacements mechanically.  Manually fix up shebang lines and trailing
newlines in a few files.  Manually update the notices in a few files that the
script does not handle.
2016-09-27 15:14:44 -04:00

167 lines
4.5 KiB
CMake

# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
#.rst:
# FindGLUT
# --------
#
# try to find glut library and include files.
#
# IMPORTED Targets
# ^^^^^^^^^^^^^^^^
#
# This module defines the :prop_tgt:`IMPORTED` targets:
#
# ``GLUT::GLUT``
# Defined if the system has GLUT.
#
# Result Variables
# ^^^^^^^^^^^^^^^^
#
# This module sets the following variables:
#
# ::
#
# GLUT_INCLUDE_DIR, where to find GL/glut.h, etc.
# GLUT_LIBRARIES, the libraries to link against
# GLUT_FOUND, If false, do not try to use GLUT.
#
# Also defined, but not for general use are:
#
# ::
#
# GLUT_glut_LIBRARY = the full path to the glut library.
# GLUT_Xmu_LIBRARY = the full path to the Xmu library.
# GLUT_Xi_LIBRARY = the full path to the Xi Library.
if (WIN32)
find_path( GLUT_INCLUDE_DIR NAMES GL/glut.h
PATHS ${GLUT_ROOT_PATH}/include )
find_library( GLUT_glut_LIBRARY NAMES glut glut32 freeglut
PATHS
${OPENGL_LIBRARY_DIR}
${GLUT_ROOT_PATH}/Release
)
else ()
if (APPLE)
find_path(GLUT_INCLUDE_DIR glut.h ${OPENGL_LIBRARY_DIR})
find_library(GLUT_glut_LIBRARY GLUT DOC "GLUT library for OSX")
find_library(GLUT_cocoa_LIBRARY Cocoa DOC "Cocoa framework for OSX")
if(GLUT_cocoa_LIBRARY AND NOT TARGET GLUT::Cocoa)
add_library(GLUT::Cocoa UNKNOWN IMPORTED)
# Cocoa should always be a Framework, but we check to make sure.
if(GLUT_cocoa_LIBRARY MATCHES "/([^/]+)\\.framework$")
set_target_properties(GLUT::Cocoa PROPERTIES
IMPORTED_LOCATION "${GLUT_cocoa_LIBRARY}/${CMAKE_MATCH_1}")
else()
set_target_properties(GLUT::Cocoa PROPERTIES
IMPORTED_LOCATION "${GLUT_cocoa_LIBRARY}")
endif()
endif()
else ()
if (BEOS)
set(_GLUT_INC_DIR /boot/develop/headers/os/opengl)
set(_GLUT_glut_LIB_DIR /boot/develop/lib/x86)
else()
find_library( GLUT_Xi_LIBRARY Xi
/usr/openwin/lib
)
find_library( GLUT_Xmu_LIBRARY Xmu
/usr/openwin/lib
)
if(GLUT_Xi_LIBRARY AND NOT TARGET GLUT::Xi)
add_library(GLUT::Xi UNKNOWN IMPORTED)
set_target_properties(GLUT::Xi PROPERTIES
IMPORTED_LOCATION "${GLUT_Xi_LIBRARY}")
endif()
if(GLUT_Xmu_LIBRARY AND NOT TARGET GLUT::Xmu)
add_library(GLUT::Xmu UNKNOWN IMPORTED)
set_target_properties(GLUT::Xmu PROPERTIES
IMPORTED_LOCATION "${GLUT_Xmu_LIBRARY}")
endif()
endif ()
find_path( GLUT_INCLUDE_DIR GL/glut.h
/usr/include/GL
/usr/openwin/share/include
/usr/openwin/include
/opt/graphics/OpenGL/include
/opt/graphics/OpenGL/contrib/libglut
${_GLUT_INC_DIR}
)
find_library( GLUT_glut_LIBRARY glut
/usr/openwin/lib
${_GLUT_glut_LIB_DIR}
)
unset(_GLUT_INC_DIR)
unset(_GLUT_glut_LIB_DIR)
endif ()
endif ()
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(GLUT REQUIRED_VARS GLUT_glut_LIBRARY GLUT_INCLUDE_DIR)
if (GLUT_FOUND)
# Is -lXi and -lXmu required on all platforms that have it?
# If not, we need some way to figure out what platform we are on.
set( GLUT_LIBRARIES
${GLUT_glut_LIBRARY}
${GLUT_Xmu_LIBRARY}
${GLUT_Xi_LIBRARY}
${GLUT_cocoa_LIBRARY}
)
if(NOT TARGET GLUT::GLUT)
add_library(GLUT::GLUT UNKNOWN IMPORTED)
set_target_properties(GLUT::GLUT PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "${GLUT_INCLUDE_DIR}")
if(GLUT_glut_LIBRARY MATCHES "/([^/]+)\\.framework$")
set_target_properties(GLUT::GLUT PROPERTIES
IMPORTED_LOCATION "${GLUT_glut_LIBRARY}/${CMAKE_MATCH_1}")
else()
set_target_properties(GLUT::GLUT PROPERTIES
IMPORTED_LOCATION "${GLUT_glut_LIBRARY}")
endif()
if(TARGET GLUT::Xmu)
set_property(TARGET GLUT::GLUT APPEND
PROPERTY INTERFACE_LINK_LIBRARIES GLUT::Xmu)
endif()
if(TARGET GLUT::Xi)
set_property(TARGET GLUT::GLUT APPEND
PROPERTY INTERFACE_LINK_LIBRARIES GLUT::Xi)
endif()
if(TARGET GLUT::Cocoa)
set_property(TARGET GLUT::GLUT APPEND
PROPERTY INTERFACE_LINK_LIBRARIES GLUT::Cocoa)
endif()
endif()
#The following deprecated settings are for backwards compatibility with CMake1.4
set (GLUT_LIBRARY ${GLUT_LIBRARIES})
set (GLUT_INCLUDE_PATH ${GLUT_INCLUDE_DIR})
endif()
mark_as_advanced(
GLUT_INCLUDE_DIR
GLUT_glut_LIBRARY
GLUT_Xmu_LIBRARY
GLUT_Xi_LIBRARY
)