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CMake: Use FindSDL2.cmake from OpenMW

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This commit is contained in:
Jannik Vogel 2016-08-08 17:23:15 +02:00
parent 160598b1bf
commit d92bbcdf0d
1 changed files with 120 additions and 154 deletions
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274
cmake/modules/FindSDL2.cmake
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@ -1,4 +1,4 @@
# Locate SDL2 library
# This module defines # This module defines
# SDL2_LIBRARY, the name of the library to link against # SDL2_LIBRARY, the name of the library to link against
# SDL2_FOUND, if false, do not try to link to SDL2 # SDL2_FOUND, if false, do not try to link to SDL2
@ -6,13 +6,13 @@
# #
# This module responds to the the flag: # This module responds to the the flag:
# SDL2_BUILDING_LIBRARY # SDL2_BUILDING_LIBRARY
# If this is defined, then no SDL2main will be linked in because # If this is defined, then no SDL2_main will be linked in because
# only applications need main(). # only applications need main().
# Otherwise, it is assumed you are building an application and this # Otherwise, it is assumed you are building an application and this
# module will attempt to locate and set the the proper link flags # module will attempt to locate and set the the proper link flags
# as part of the returned SDL2_LIBRARY variable. # as part of the returned SDL2_LIBRARY variable.
# #
# Don't forget to include SDLmain.h and SDLmain.m your project for the # Don't forget to include SDL2main.h and SDL2main.m your project for the
# OS X framework based version. (Other versions link to -lSDL2main which # OS X framework based version. (Other versions link to -lSDL2main which
# this module will try to find on your behalf.) Also for OS X, this # this module will try to find on your behalf.) Also for OS X, this
# module will automatically add the -framework Cocoa on your behalf. # module will automatically add the -framework Cocoa on your behalf.
@ -37,7 +37,7 @@
# and providing a more controlled/consistent search behavior. # and providing a more controlled/consistent search behavior.
# Added new modifications to recognize OS X frameworks and # Added new modifications to recognize OS X frameworks and
# additional Unix paths (FreeBSD, etc). # additional Unix paths (FreeBSD, etc).
# Also corrected the header search path to follow "proper" SDL guidelines. # Also corrected the header search path to follow "proper" SDL2 guidelines.
# Added a search for SDL2main which is needed by some platforms. # Added a search for SDL2main which is needed by some platforms.
# Added a search for threads which is needed by some platforms. # Added a search for threads which is needed by some platforms.
# Added needed compile switches for MinGW. # Added needed compile switches for MinGW.
@ -48,183 +48,149 @@
# CMAKE_INCLUDE_PATH to modify the search paths. # CMAKE_INCLUDE_PATH to modify the search paths.
# #
# Note that the header path has changed from SDL2/SDL.h to just SDL.h # Note that the header path has changed from SDL2/SDL.h to just SDL.h
# This needed to change because "proper" SDL convention # This needed to change because "proper" SDL2 convention
# is #include "SDL.h", not <SDL2/SDL.h>. This is done for portability # is #include "SDL.h", not <SDL2/SDL.h>. This is done for portability
# reasons because not all systems place things in SDL2/ (see FreeBSD). # reasons because not all systems place things in SDL2/ (see FreeBSD).
#
# Ported by Johnny Patterson. This is a literal port for SDL2 of the FindSDL.cmake
# module with the minor edit of changing "SDL" to "SDL2" where necessary. This
# was not created for redistribution, and exists temporarily pending official
# SDL2 CMake modules.
#============================================================================= #=============================================================================
# Copyright 2003-2009 Kitware, Inc. # Copyright 2003-2009 Kitware, Inc.
# #
# Distributed under the OSI-approved BSD License (the "License"). # Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
# #
# This software is distributed WITHOUT ANY WARRANTY; without even the # This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. # implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information. # See the License for more information.
#============================================================================= #=============================================================================
# CMake - Cross Platform Makefile Generator # (To distribute this file outside of CMake, substitute the full
# Copyright 2000-2016 Kitware, Inc. # License text for the above reference.)
# Copyright 2000-2011 Insight Software Consortium
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# * Neither the names of Kitware, Inc., the Insight Software Consortium,
# nor the names of their contributors may be used to endorse or promote
# products derived from this software without specific prior written
# permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# ------------------------------------------------------------------------------
#
# The above copyright and license notice applies to distributions of
# CMake in source and binary form. Some source files contain additional
# notices of original copyright by their contributors; see each source
# for details. Third-party software packages supplied with CMake under
# compatible licenses provide their own copyright notices documented in
# corresponding subdirectories.
#
# ------------------------------------------------------------------------------
#
# CMake was initially developed by Kitware with the following sponsorship:
#
# * National Library of Medicine at the National Institutes of Health
# as part of the Insight Segmentation and Registration Toolkit (ITK).
#
# * US National Labs (Los Alamos, Livermore, Sandia) ASC Parallel
# Visualization Initiative.
#
# * National Alliance for Medical Image Computing (NAMIC) is funded by the
# National Institutes of Health through the NIH Roadmap for Medical Research,
# Grant U54 EB005149.
#
# * Kitware, Inc.
#
message("<FindSDL2.cmake>")
SET(SDL2_SEARCH_PATHS FIND_PATH(SDL2_INCLUDE_DIR SDL.h
~/Library/Frameworks HINTS
/Library/Frameworks $ENV{SDL2DIR}
/usr/local PATH_SUFFIXES include/SDL2 include
/usr PATHS
/sw # Fink ~/Library/Frameworks
/opt/local # DarwinPorts /Library/Frameworks
/opt/csw # Blastwave /usr/local/include/SDL2
/opt /usr/include/SDL2
${SDL2_PATH} /sw # Fink
/opt/local # DarwinPorts
/opt/csw # Blastwave
/opt
)
#MESSAGE("SDL2_INCLUDE_DIR is ${SDL2_INCLUDE_DIR}")
FIND_LIBRARY(SDL2_LIBRARY_PATH
NAMES SDL2
HINTS
$ENV{SDL2DIR}
PATH_SUFFIXES lib64 lib
PATHS
/sw
/opt/local
/opt/csw
/opt
) )
if(CMAKE_SIZEOF_VOID_P EQUAL 8) set(SDL2_LIBRARY_ONLY ${SDL2_LIBRARY_PATH} CACHE STRING "The SDL2 library, with no other libraries.")
set(VC_LIB_PATH_SUFFIX lib/x64) set(SDL2_LIBRARY_TEMP ${SDL2_LIBRARY_PATH})
else()
set(VC_LIB_PATH_SUFFIX lib/x86)
endif()
FIND_LIBRARY(SDL2_LIBRARY_TEMP #MESSAGE("SDL2_LIBRARY_TEMP is ${SDL2_LIBRARY_TEMP}")
NAMES SDL2
HINTS
$ENV{SDL2DIR}
PATH_SUFFIXES lib64 lib ${VC_LIB_PATH_SUFFIX}
PATHS ${SDL2_SEARCH_PATHS}
)
IF(SDL2_LIBRARY_TEMP) IF(NOT SDL2_BUILDING_LIBRARY)
FIND_PATH(SDL2_INCLUDE_DIR SDL.h IF(NOT ${SDL2_INCLUDE_DIR} MATCHES ".framework")
HINTS # Non-OS X framework versions expect you to also dynamically link to
$ENV{SDL2DIR} # SDL2main. This is mainly for Windows and OS X. Other (Unix) platforms
PATH_SUFFIXES include/SDL2 include # seem to provide SDL2main for compatibility even though they don't
PATHS ${SDL2_SEARCH_PATHS} # necessarily need it.
FIND_LIBRARY(SDL2MAIN_LIBRARY
NAMES SDL2main
HINTS
$ENV{SDL2DIR}
PATH_SUFFIXES lib64 lib
PATHS
/sw
/opt/local
/opt/csw
/opt
) )
ENDIF(NOT ${SDL2_INCLUDE_DIR} MATCHES ".framework")
ENDIF(NOT SDL2_BUILDING_LIBRARY)
IF(NOT SDL2_BUILDING_LIBRARY) # SDL2 may require threads on your system.
IF(NOT ${SDL2_INCLUDE_DIR} MATCHES ".framework") # The Apple build may not need an explicit flag because one of the
# Non-OS X framework versions expect you to also dynamically link to # frameworks may already provide it.
# SDL2main. This is mainly for Windows and OS X. Other (Unix) platforms # But for non-OSX systems, I will use the CMake Threads package.
# seem to provide SDL2main for compatibility even though they don't IF(NOT APPLE)
# necessarily need it. FIND_PACKAGE(Threads)
FIND_LIBRARY(SDL2MAIN_LIBRARY ENDIF(NOT APPLE)
NAMES SDL2main
HINTS
$ENV{SDL2DIR}
PATH_SUFFIXES lib64 lib
PATHS ${SDL2_SEARCH_PATHS}
)
ENDIF(NOT ${SDL2_INCLUDE_DIR} MATCHES ".framework")
ENDIF(NOT SDL2_BUILDING_LIBRARY)
# SDL2 may require threads on your system. # MinGW needs an additional library, mwindows
# The Apple build may not need an explicit flag because one of the # It's total link flags should look like -lmingw32 -lSDL2main -lSDL2 -lmwindows
# frameworks may already provide it. # (Actually on second look, I think it only needs one of the m* libraries.)
# But for non-OSX systems, I will use the CMake Threads package. IF(MINGW)
IF(NOT APPLE) SET(MINGW32_LIBRARY mingw32 CACHE STRING "mwindows for MinGW")
FIND_PACKAGE(Threads) ENDIF(MINGW)
ENDIF(NOT APPLE)
# MinGW needs an additional library, mwindows SET(SDL2_FOUND "NO")
# It's total link flags should look like -lmingw32 -lSDL2main -lSDL2 -lmwindows IF(SDL2_LIBRARY_TEMP)
# (Actually on second look, I think it only needs one of the m* libraries.) # For SDL2main
IF(MINGW) IF(NOT SDL2_BUILDING_LIBRARY)
SET(MINGW32_LIBRARY mingw32 CACHE STRING "mwindows for MinGW") IF(SDL2MAIN_LIBRARY)
ENDIF(MINGW) SET(SDL2_LIBRARY_TEMP ${SDL2MAIN_LIBRARY} ${SDL2_LIBRARY_TEMP})
ENDIF(SDL2MAIN_LIBRARY)
ENDIF(NOT SDL2_BUILDING_LIBRARY)
# For SDL2main # For OS X, SDL2 uses Cocoa as a backend so it must link to Cocoa.
IF(NOT SDL2_BUILDING_LIBRARY) # CMake doesn't display the -framework Cocoa string in the UI even
IF(SDL2MAIN_LIBRARY) # though it actually is there if I modify a pre-used variable.
SET(SDL2_LIBRARY_TEMP ${SDL2MAIN_LIBRARY} ${SDL2_LIBRARY_TEMP}) # I think it has something to do with the CACHE STRING.
ENDIF(SDL2MAIN_LIBRARY) # So I use a temporary variable until the end so I can set the
ENDIF(NOT SDL2_BUILDING_LIBRARY) # "real" variable in one-shot.
IF(APPLE)
SET(SDL2_LIBRARY_TEMP ${SDL2_LIBRARY_TEMP} "-framework Cocoa")
ENDIF(APPLE)
# For OS X, SDL2 uses Cocoa as a backend so it must link to Cocoa. # For threads, as mentioned Apple doesn't need this.
# CMake doesn't display the -framework Cocoa string in the UI even # In fact, there seems to be a problem if I used the Threads package
# though it actually is there if I modify a pre-used variable. # and try using this line, so I'm just skipping it entirely for OS X.
# I think it has something to do with the CACHE STRING. IF(NOT APPLE)
# So I use a temporary variable until the end so I can set the SET(SDL2_LIBRARY_TEMP ${SDL2_LIBRARY_TEMP} ${CMAKE_THREAD_LIBS_INIT})
# "real" variable in one-shot. ENDIF(NOT APPLE)
IF(APPLE)
SET(SDL2_LIBRARY_TEMP ${SDL2_LIBRARY_TEMP} "-framework Cocoa")
ENDIF(APPLE)
# For threads, as mentioned Apple doesn't need this. # For MinGW library
# In fact, there seems to be a problem if I used the Threads package IF(MINGW)
# and try using this line, so I'm just skipping it entirely for OS X. SET(SDL2_LIBRARY_TEMP ${MINGW32_LIBRARY} ${SDL2_LIBRARY_TEMP})
IF(NOT APPLE) ENDIF(MINGW)
SET(SDL2_LIBRARY_TEMP ${SDL2_LIBRARY_TEMP} ${CMAKE_THREAD_LIBS_INIT})
ENDIF(NOT APPLE) IF(WIN32)
SET(SDL2_LIBRARY_TEMP winmm imm32 version msimg32 ${SDL2_LIBRARY_TEMP})
ENDIF(WIN32)
# For MinGW library # Set the final string here so the GUI reflects the final state.
IF(MINGW) SET(SDL2_LIBRARY ${SDL2_LIBRARY_TEMP} CACHE STRING "Where the SDL2 Library can be found")
SET(SDL2_LIBRARY_TEMP ${MINGW32_LIBRARY} ${SDL2_LIBRARY_TEMP}) # Set the temp variable to INTERNAL so it is not seen in the CMake GUI
ENDIF(MINGW) SET(SDL2_LIBRARY_TEMP "${SDL2_LIBRARY_TEMP}" CACHE INTERNAL "")
# Set the final string here so the GUI reflects the final state. SET(SDL2_FOUND "YES")
SET(SDL2_LIBRARY ${SDL2_LIBRARY_TEMP} CACHE STRING "Where the SDL2 Library can be found")
# Unset the temp variable to INTERNAL so it is not seen in the CMake GUI
UNSET(SDL2_LIBRARY_TEMP)
ENDIF(SDL2_LIBRARY_TEMP) ENDIF(SDL2_LIBRARY_TEMP)
message("</FindSDL2.cmake>")
INCLUDE(FindPackageHandleStandardArgs) INCLUDE(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(SDL2 REQUIRED_VARS SDL2_LIBRARY SDL2_INCLUDE_DIR) FIND_PACKAGE_HANDLE_STANDARD_ARGS(SDL2
REQUIRED_VARS SDL2_LIBRARY SDL2_INCLUDE_DIR)
IF(SDL2_STATIC)
if (UNIX AND NOT APPLE)
EXECUTE_PROCESS(COMMAND sdl2-config --static-libs OUTPUT_VARIABLE SDL2_LINK_FLAGS)
STRING(REGEX REPLACE "(\r?\n)+$" "" SDL2_LINK_FLAGS "${SDL2_LINK_FLAGS}")
SET(SDL2_LIBRARY ${SDL2_LINK_FLAGS})
ENDIF()
ENDIF(SDL2_STATIC)