#.rst:
# Find SDL2
# ---------
#
# Finds the SDL2 library. This module defines:
#
# SDL2_FOUND - True if SDL2 library is found
# SDL2::SDL2 - SDL2 imported target
#
# Additionally these variables are defined for internal usage:
#
# SDL2_LIBRARY_DEBUG - SDL2 debug library, if found
# SDL2_LIBRARY_RELEASE - SDL2 release library, if found
# SDL2_DLL_DEBUG - SDL2 debug DLL on Windows, if found
# SDL2_DLL_RELEASE - SDL2 release DLL on Windows, if found
# SDL2_INCLUDE_DIR - Root include dir. By adding it to PATH,
# <SDL2/SDL.h> will work on all sane systems and <SDL/SDL.h> on Emscripten.
#
#
# This file is part of Magnum.
#
# Copyright © 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
# Vladimír Vondruš <mosra@centrum.cz>
# Copyright © 2018 Jonathan Hale <squareys@googlemail.com>
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
#
# In Emscripten SDL is linked automatically, thus no need to find the library.
# Also the includes are in SDL subdirectory, not SDL2.
if ( CORRADE_TARGET_EMSCRIPTEN )
set ( _SDL2_INCLUDE_PREFIX SDL )
else ( )
# macOS *.dmg distribution puts everything directly into the root inside
# the framework, but according to https://developer.apple.com/library/archive/documentation/MacOSX/Conceptual/BPFrameworks/Tasks/IncludingFrameworks.html,
# <framweworkName>/<headerName> works so SDL2/SDL.h should work too.
set ( _SDL2_INCLUDE_PREFIX SDL2 )
if ( WIN32 )
# Precompiled libraries for MSVC are in x86/x64 subdirectories
if ( MSVC )
if ( CMAKE_SIZEOF_VOID_P EQUAL 8 )
set ( _SDL2_LIBRARY_PATH_SUFFIX lib/x64 )
elseif ( CMAKE_SIZEOF_VOID_P EQUAL 4 )
set ( _SDL2_LIBRARY_PATH_SUFFIX lib/x86 )
endif ( )
# Both includes and libraries for MinGW are in some directory deep
# inside. There's also a CMake config file but it has HARDCODED path
# to /opt/local/i686-w64-mingw32, which doesn't make ANY SENSE,
# especially on Windows.
elseif ( MINGW )
if ( CMAKE_SIZEOF_VOID_P EQUAL 8 )
set ( _SDL2_LIBRARY_PATH_SUFFIX x86_64-w64-mingw32/lib )
set ( _SDL2_RUNTIME_PATH_SUFFIX x86_64-w64-mingw32/bin )
set ( _SDL2_INCLUDE_PATH_SUFFIX x86_64-w64-mingw32/include )
elseif ( CMAKE_SIZEOF_VOID_P EQUAL 4 )
set ( _SDL2_LIBRARY_PATH_SUFFIX i686-w64-mingw32/lib )
set ( _SDL2_RUNTIME_PATH_SUFFIX i686-w64-mingw32/lib )
set ( _SDL2_INCLUDE_PATH_SUFFIX i686-w64-mingw32/include )
endif ( )
else ( )
message ( FATAL_ERROR "Unsupported compiler" )
endif ( )
endif ( )
find_library ( SDL2_LIBRARY_RELEASE
# Compiling SDL2 from scratch on macOS creates dead libSDL2.so symlink
# which CMake somehow prefers before the SDL2-2.0.dylib file. Making
# the dylib first so it is preferred. Not sure how this maps to debug
# config though :/
N A M E S S D L 2 - 2 . 0 S D L 2
P A T H _ S U F F I X E S $ { _ S D L 2 _ L I B R A R Y _ P A T H _ S U F F I X } )
find_library ( SDL2_LIBRARY_DEBUG
N A M E S S D L 2 d
P A T H _ S U F F I X E S $ { _ S D L 2 _ L I B R A R Y _ P A T H _ S U F F I X } )
# FPHSA needs one of the _DEBUG/_RELEASE variables to check that the
# library was found -- using SDL_LIBRARY, which will get populated by
# select_library_configurations() below.
set ( SDL2_LIBRARY_NEEDED SDL2_LIBRARY )
endif ( )
include ( SelectLibraryConfigurations )
select_library_configurations ( SDL2 )
# Include dir
find_path ( SDL2_INCLUDE_DIR
# We have to look for a file which is present only in SDL2 and not in SDL1.
# Apparently when both SDL.h and SDL_scancode.h are specified, CMake is
# happy enough that it found SDL.h and doesn't bother about the other.
#
# On macOS, where the includes are not in SDL2/SDL.h form (which would
# solve this issue), but rather SDL2.framework/Headers/SDL.h, CMake might
# find SDL.framework/Headers/SDL.h if SDL1 is installed, which is wrong.
N A M E S $ { _ S D L 2 _ I N C L U D E _ P R E F I X } / S D L _ s c a n c o d e . h
P A T H _ S U F F I X E S $ { _ S D L 2 _ I N C L U D E _ P A T H _ S U F F I X } )
# DLL on Windows
if ( CORRADE_TARGET_WINDOWS )
find_file ( SDL2_DLL_RELEASE
N A M E S S D L 2 . d l l
P A T H _ S U F F I X E S $ { _ S D L 2 _ R U N T I M E _ P A T H _ S U F F I X } $ { _ S D L 2 _ L I B R A R Y _ P A T H _ S U F F I X } )
find_file ( SDL2_DLL_DEBUG
N A M E S S D L 2 d . d l l # not sure?
P A T H _ S U F F I X E S $ { _ S D L 2 _ R U N T I M E _ P A T H _ S U F F I X } $ { _ S D L 2 _ L I B R A R Y _ P A T H _ S U F F I X } )
endif ( )
# iOS dependencies
if ( CORRADE_TARGET_IOS )
set ( _SDL2_FRAMEWORKS
A u d i o T o o l b o x
A V F o u n d a t i o n
C o r e G r a p h i c s
C o r e M o t i o n
F o u n d a t i o n
G a m e C o n t r o l l e r
Q u a r t z C o r e
U I K i t )
set ( _SDL2_FRAMEWORK_LIBRARIES )
foreach ( framework ${ _SDL2_FRAMEWORKS } )
find_library ( _SDL2_ ${ framework } _LIBRARY ${ framework } )
mark_as_advanced ( _SDL2_ ${ framework } _LIBRARY )
list ( APPEND _SDL2_FRAMEWORK_LIBRARIES ${ _SDL2_${framework } _LIBRARY} )
list ( APPEND _SDL2_FRAMEWORK_LIBRARY_NAMES _SDL2_ ${ framework } _LIBRARY )
endforeach ( )
endif ( )
include ( FindPackageHandleStandardArgs )
find_package_handle_standard_args ( "SDL2" DEFAULT_MSG
$ { S D L 2 _ L I B R A R Y _ N E E D E D }
$ { _ S D L 2 _ F R A M E W O R K _ L I B R A R Y _ N A M E S }
S D L 2 _ I N C L U D E _ D I R )
if ( NOT TARGET SDL2::SDL2 )
if ( SDL2_LIBRARY_NEEDED )
add_library ( SDL2::SDL2 UNKNOWN IMPORTED )
# Work around BUGGY framework support on macOS
# https://cmake.org/Bug/view.php?id=14105
if ( CORRADE_TARGET_APPLE AND SDL2_LIBRARY_RELEASE MATCHES "\\.framework$" )
set_property ( TARGET SDL2::SDL2 APPEND PROPERTY IMPORTED_CONFIGURATIONS RELEASE )
set_property ( TARGET SDL2::SDL2 PROPERTY IMPORTED_LOCATION_RELEASE ${ SDL2_LIBRARY_RELEASE } /SDL2 )
else ( )
if ( SDL2_LIBRARY_RELEASE )
set_property ( TARGET SDL2::SDL2 APPEND PROPERTY IMPORTED_CONFIGURATIONS RELEASE )
set_property ( TARGET SDL2::SDL2 PROPERTY IMPORTED_LOCATION_RELEASE ${ SDL2_LIBRARY_RELEASE } )
endif ( )
if ( SDL2_LIBRARY_DEBUG )
set_property ( TARGET SDL2::SDL2 APPEND PROPERTY IMPORTED_CONFIGURATIONS DEBUG )
set_property ( TARGET SDL2::SDL2 PROPERTY IMPORTED_LOCATION_DEBUG ${ SDL2_LIBRARY_DEBUG } )
endif ( )
endif ( )
# Link additional `dl` and `pthread` libraries required by a static
# build of SDL on Unixy platforms (except Apple, where it is most
# probably some frameworks instead)
if ( CORRADE_TARGET_UNIX AND NOT CORRADE_TARGET_APPLE AND SDL2_LIBRARY MATCHES "${CMAKE_STATIC_LIBRARY_SUFFIX}$" )
find_package ( Threads )
set_property ( TARGET SDL2::SDL2 APPEND PROPERTY
I N T E R F A C E _ L I N K _ L I B R A R I E S $ { C M A K E _ T H R E A D _ L I B S _ I N I T } $ { C M A K E _ D L _ L I B S } )
endif ( )
# Link frameworks on iOS
if ( CORRADE_TARGET_IOS )
set_property ( TARGET SDL2::SDL2 APPEND PROPERTY
I N T E R F A C E _ L I N K _ L I B R A R I E S $ { _ S D L 2 _ F R A M E W O R K _ L I B R A R I E S } )
endif ( )
else ( )
add_library ( SDL2::SDL2 INTERFACE IMPORTED )
endif ( )
set_property ( TARGET SDL2::SDL2 PROPERTY
I N T E R F A C E _ I N C L U D E _ D I R E C T O R I E S $ { S D L 2 _ I N C L U D E _ D I R } )
endif ( )
mark_as_advanced ( SDL2_INCLUDE_DIR )
