mirror of https://github.com/stenzek/duckstation
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
390 lines
14 KiB
CMake
390 lines
14 KiB
CMake
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
|
|
# file Copyright.txt or https://cmake.org/licensing for details.
|
|
# Sourced from https://raw.githubusercontent.com/aminosbh/sdl2-cmake-modules/master/FindSDL2.cmake
|
|
|
|
# Copyright 2019 Amine Ben Hassouna <amine.benhassouna@gmail.com>
|
|
# Copyright 2000-2019 Kitware, Inc. and Contributors
|
|
# 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 name of Kitware, Inc. nor the names of 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.
|
|
|
|
#[=======================================================================[.rst:
|
|
FindSDL2
|
|
--------
|
|
|
|
Locate SDL2 library
|
|
|
|
This module defines the following 'IMPORTED' targets:
|
|
|
|
::
|
|
|
|
SDL2::Core
|
|
The SDL2 library, if found.
|
|
Libraries should link to SDL2::Core
|
|
|
|
SDL2::Main
|
|
The SDL2main library, if found.
|
|
Applications should link to SDL2::Main instead of SDL2::Core
|
|
|
|
|
|
|
|
This module will set the following variables in your project:
|
|
|
|
::
|
|
|
|
SDL2_LIBRARIES, the name of the library to link against
|
|
SDL2_INCLUDE_DIRS, where to find SDL.h
|
|
SDL2_FOUND, if false, do not try to link to SDL2
|
|
SDL2MAIN_FOUND, if false, do not try to link to SDL2main
|
|
SDL2_VERSION_STRING, human-readable string containing the version of SDL2
|
|
|
|
|
|
|
|
This module responds to the following cache variables:
|
|
|
|
::
|
|
|
|
SDL2_PATH
|
|
Set a custom SDL2 Library path (default: empty)
|
|
|
|
SDL2_NO_DEFAULT_PATH
|
|
Disable search SDL2 Library in default path.
|
|
If SDL2_PATH (default: ON)
|
|
Else (default: OFF)
|
|
|
|
SDL2_INCLUDE_DIR
|
|
SDL2 headers path.
|
|
|
|
SDL2_LIBRARY
|
|
SDL2 Library (.dll, .so, .a, etc) path.
|
|
|
|
SDL2MAIN_LIBRAY
|
|
SDL2main Library (.a) path.
|
|
|
|
SDL2_BUILDING_LIBRARY
|
|
This flag is useful only when linking to SDL2_LIBRARIES insead of
|
|
SDL2::Main. It is required only when building a library that links to
|
|
SDL2_LIBRARIES, because only applications need main() (No need to also
|
|
link to SDL2main).
|
|
If this flag is defined, then no SDL2main will be added to SDL2_LIBRARIES
|
|
and no SDL2::Main target will be created.
|
|
|
|
|
|
Don't forget to include SDLmain.h and SDLmain.m in your project for the
|
|
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
|
|
module will automatically add the -framework Cocoa on your behalf.
|
|
|
|
|
|
Additional Note: If you see an empty SDL2_LIBRARY in your project
|
|
configuration, it means CMake did not find your SDL2 library
|
|
(SDL2.dll, libsdl2.so, SDL2.framework, etc). Set SDL2_LIBRARY to point
|
|
to your SDL2 library, and configure again. Similarly, if you see an
|
|
empty SDL2MAIN_LIBRARY, you should set this value as appropriate. These
|
|
values are used to generate the final SDL2_LIBRARIES variable and the
|
|
SDL2::Core and SDL2::Main targets, but when these values are unset,
|
|
SDL2_LIBRARIES, SDL2::Core and SDL2::Main does not get created.
|
|
|
|
|
|
$SDL2DIR is an environment variable that would correspond to the
|
|
./configure --prefix=$SDL2DIR used in building SDL2. l.e.galup 9-20-02
|
|
|
|
|
|
|
|
Created by Amine Ben Hassouna:
|
|
Adapt FindSDL.cmake to SDL2 (FindSDL2.cmake).
|
|
Add cache variables for more flexibility:
|
|
SDL2_PATH, SDL2_NO_DEFAULT_PATH (for details, see doc above).
|
|
Mark 'Threads' as a required dependency for non-OSX systems.
|
|
Modernize the FindSDL2.cmake module by creating specific targets:
|
|
SDL2::Core and SDL2::Main (for details, see doc above).
|
|
|
|
|
|
Original FindSDL.cmake module:
|
|
Modified by Eric Wing. Added code to assist with automated building
|
|
by using environmental variables and providing a more
|
|
controlled/consistent search behavior. Added new modifications to
|
|
recognize OS X frameworks and additional Unix paths (FreeBSD, etc).
|
|
Also corrected the header search path to follow "proper" SDL
|
|
guidelines. Added a search for SDLmain which is needed by some
|
|
platforms. Added a search for threads which is needed by some
|
|
platforms. Added needed compile switches for MinGW.
|
|
|
|
On OSX, this will prefer the Framework version (if found) over others.
|
|
People will have to manually change the cache value of SDL2_LIBRARY to
|
|
override this selection or set the SDL2_PATH variable or the CMake
|
|
environment CMAKE_INCLUDE_PATH to modify the search paths.
|
|
|
|
Note that the header path has changed from SDL/SDL.h to just SDL.h
|
|
This needed to change because "proper" SDL convention is #include
|
|
"SDL.h", not <SDL/SDL.h>. This is done for portability reasons
|
|
because not all systems place things in SDL/ (see FreeBSD).
|
|
#]=======================================================================]
|
|
|
|
# Define options for searching SDL2 Library in a custom path
|
|
|
|
set(SDL2_PATH "" CACHE STRING "Custom SDL2 Library path")
|
|
|
|
set(_SDL2_NO_DEFAULT_PATH OFF)
|
|
if(SDL2_PATH)
|
|
set(_SDL2_NO_DEFAULT_PATH ON)
|
|
endif()
|
|
|
|
set(SDL2_NO_DEFAULT_PATH ${_SDL2_NO_DEFAULT_PATH}
|
|
CACHE BOOL "Disable search SDL2 Library in default path")
|
|
unset(_SDL2_NO_DEFAULT_PATH)
|
|
|
|
set(SDL2_NO_DEFAULT_PATH_CMD)
|
|
if(SDL2_NO_DEFAULT_PATH)
|
|
set(SDL2_NO_DEFAULT_PATH_CMD NO_DEFAULT_PATH)
|
|
endif()
|
|
|
|
# Search for the SDL2 include directory
|
|
find_path(SDL2_INCLUDE_DIR SDL.h
|
|
HINTS
|
|
ENV SDL2DIR
|
|
${SDL2_NO_DEFAULT_PATH_CMD}
|
|
PATH_SUFFIXES SDL2
|
|
# path suffixes to search inside ENV{SDL2DIR}
|
|
include/SDL2 include
|
|
PATHS ${SDL2_PATH}
|
|
DOC "Where the SDL2 headers can be found"
|
|
)
|
|
|
|
set(SDL2_INCLUDE_DIRS "${SDL2_INCLUDE_DIR}")
|
|
|
|
if(CMAKE_SIZEOF_VOID_P EQUAL 8)
|
|
set(VC_LIB_PATH_SUFFIX lib/x64)
|
|
else()
|
|
set(VC_LIB_PATH_SUFFIX lib/x86)
|
|
endif()
|
|
|
|
# SDL-2.0 is the name used by FreeBSD ports...
|
|
# don't confuse it for the version number.
|
|
find_library(SDL2_LIBRARY
|
|
NAMES SDL2 SDL-2.0
|
|
HINTS
|
|
ENV SDL2DIR
|
|
${SDL2_NO_DEFAULT_PATH_CMD}
|
|
PATH_SUFFIXES lib ${VC_LIB_PATH_SUFFIX}
|
|
PATHS ${SDL2_PATH}
|
|
DOC "Where the SDL2 Library can be found"
|
|
)
|
|
|
|
set(SDL2_LIBRARIES "${SDL2_LIBRARY}")
|
|
|
|
if(NOT SDL2_BUILDING_LIBRARY)
|
|
if(NOT SDL2_INCLUDE_DIR MATCHES ".framework")
|
|
# Non-OS X framework versions expect you to also dynamically link to
|
|
# SDL2main. This is mainly for Windows and OS X. Other (Unix) platforms
|
|
# seem to provide SDL2main for compatibility even though they don't
|
|
# necessarily need it.
|
|
|
|
if(SDL2_PATH)
|
|
set(SDL2MAIN_LIBRARY_PATHS "${SDL2_PATH}")
|
|
endif()
|
|
|
|
if(NOT SDL2_NO_DEFAULT_PATH)
|
|
set(SDL2MAIN_LIBRARY_PATHS
|
|
/sw
|
|
/opt/local
|
|
/opt/csw
|
|
/opt
|
|
"${SDL2MAIN_LIBRARY_PATHS}"
|
|
)
|
|
endif()
|
|
|
|
find_library(SDL2MAIN_LIBRARY
|
|
NAMES SDL2main
|
|
HINTS
|
|
ENV SDL2DIR
|
|
${SDL2_NO_DEFAULT_PATH_CMD}
|
|
PATH_SUFFIXES lib ${VC_LIB_PATH_SUFFIX}
|
|
PATHS ${SDL2MAIN_LIBRARY_PATHS}
|
|
DOC "Where the SDL2main library can be found"
|
|
)
|
|
unset(SDL2MAIN_LIBRARY_PATHS)
|
|
endif()
|
|
endif()
|
|
|
|
# SDL2 may require threads on your system.
|
|
# The Apple build may not need an explicit flag because one of the
|
|
# frameworks may already provide it.
|
|
# But for non-OSX systems, I will use the CMake Threads package.
|
|
if(NOT APPLE)
|
|
find_package(Threads QUIET)
|
|
if(NOT Threads_FOUND AND NOT WIN32)
|
|
set(SDL2_THREADS_NOT_FOUND "Could NOT find Threads (Threads is required by SDL2).")
|
|
if(SDL2_FIND_REQUIRED)
|
|
message(FATAL_ERROR ${SDL2_THREADS_NOT_FOUND})
|
|
else()
|
|
if(NOT SDL2_FIND_QUIETLY)
|
|
message(STATUS ${SDL2_THREADS_NOT_FOUND})
|
|
endif()
|
|
return()
|
|
endif()
|
|
unset(SDL2_THREADS_NOT_FOUND)
|
|
endif()
|
|
endif()
|
|
|
|
# MinGW needs an additional link flag, -mwindows
|
|
# It's total link flags should look like -lmingw32 -lSDL2main -lSDL2 -mwindows
|
|
if(MINGW)
|
|
set(MINGW32_LIBRARY mingw32 "-mwindows" CACHE STRING "link flags for MinGW")
|
|
endif()
|
|
|
|
if(SDL2_LIBRARY)
|
|
# For SDL2main
|
|
if(SDL2MAIN_LIBRARY AND NOT SDL2_BUILDING_LIBRARY)
|
|
list(FIND SDL2_LIBRARIES "${SDL2MAIN_LIBRARY}" _SDL2_MAIN_INDEX)
|
|
if(_SDL2_MAIN_INDEX EQUAL -1)
|
|
set(SDL2_LIBRARIES "${SDL2MAIN_LIBRARY}" ${SDL2_LIBRARIES})
|
|
endif()
|
|
unset(_SDL2_MAIN_INDEX)
|
|
endif()
|
|
|
|
# For OS X, SDL2 uses Cocoa as a backend so it must link to Cocoa.
|
|
# CMake doesn't display the -framework Cocoa string in the UI even
|
|
# though it actually is there if I modify a pre-used variable.
|
|
# I think it has something to do with the CACHE STRING.
|
|
# So I use a temporary variable until the end so I can set the
|
|
# "real" variable in one-shot.
|
|
if(APPLE)
|
|
set(SDL2_LIBRARIES ${SDL2_LIBRARIES} "-framework Cocoa")
|
|
endif()
|
|
|
|
# For threads, as mentioned Apple doesn't need this.
|
|
# In fact, there seems to be a problem if I used the Threads package
|
|
# and try using this line, so I'm just skipping it entirely for OS X.
|
|
if(NOT APPLE)
|
|
set(SDL2_LIBRARIES ${SDL2_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT})
|
|
endif()
|
|
|
|
# For MinGW library
|
|
if(MINGW)
|
|
set(SDL2_LIBRARIES ${MINGW32_LIBRARY} ${SDL2_LIBRARIES})
|
|
endif()
|
|
|
|
endif()
|
|
|
|
# Read SDL2 version
|
|
if(SDL2_INCLUDE_DIR AND EXISTS "${SDL2_INCLUDE_DIR}/SDL_version.h")
|
|
file(STRINGS "${SDL2_INCLUDE_DIR}/SDL_version.h" SDL2_VERSION_MAJOR_LINE REGEX "^#define[ \t]+SDL_MAJOR_VERSION[ \t]+[0-9]+$")
|
|
file(STRINGS "${SDL2_INCLUDE_DIR}/SDL_version.h" SDL2_VERSION_MINOR_LINE REGEX "^#define[ \t]+SDL_MINOR_VERSION[ \t]+[0-9]+$")
|
|
file(STRINGS "${SDL2_INCLUDE_DIR}/SDL_version.h" SDL2_VERSION_PATCH_LINE REGEX "^#define[ \t]+SDL_PATCHLEVEL[ \t]+[0-9]+$")
|
|
string(REGEX REPLACE "^#define[ \t]+SDL_MAJOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL2_VERSION_MAJOR "${SDL2_VERSION_MAJOR_LINE}")
|
|
string(REGEX REPLACE "^#define[ \t]+SDL_MINOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL2_VERSION_MINOR "${SDL2_VERSION_MINOR_LINE}")
|
|
string(REGEX REPLACE "^#define[ \t]+SDL_PATCHLEVEL[ \t]+([0-9]+)$" "\\1" SDL2_VERSION_PATCH "${SDL2_VERSION_PATCH_LINE}")
|
|
set(SDL2_VERSION_STRING ${SDL2_VERSION_MAJOR}.${SDL2_VERSION_MINOR}.${SDL2_VERSION_PATCH})
|
|
unset(SDL2_VERSION_MAJOR_LINE)
|
|
unset(SDL2_VERSION_MINOR_LINE)
|
|
unset(SDL2_VERSION_PATCH_LINE)
|
|
unset(SDL2_VERSION_MAJOR)
|
|
unset(SDL2_VERSION_MINOR)
|
|
unset(SDL2_VERSION_PATCH)
|
|
endif()
|
|
|
|
include(FindPackageHandleStandardArgs)
|
|
|
|
FIND_PACKAGE_HANDLE_STANDARD_ARGS(SDL2
|
|
REQUIRED_VARS SDL2_LIBRARY SDL2_INCLUDE_DIR
|
|
VERSION_VAR SDL2_VERSION_STRING)
|
|
|
|
if(SDL2MAIN_LIBRARY)
|
|
FIND_PACKAGE_HANDLE_STANDARD_ARGS(SDL2main
|
|
REQUIRED_VARS SDL2MAIN_LIBRARY SDL2_INCLUDE_DIR
|
|
VERSION_VAR SDL2_VERSION_STRING)
|
|
endif()
|
|
|
|
|
|
mark_as_advanced(SDL2_PATH
|
|
SDL2_NO_DEFAULT_PATH
|
|
SDL2_LIBRARY
|
|
SDL2MAIN_LIBRARY
|
|
SDL2_INCLUDE_DIR
|
|
SDL2_BUILDING_LIBRARY)
|
|
|
|
|
|
# SDL2:: targets (SDL2::Core and SDL2::Main)
|
|
if(SDL2_FOUND)
|
|
|
|
# SDL2::Core target
|
|
if(SDL2_LIBRARY AND NOT TARGET SDL2::Core)
|
|
add_library(SDL2::Core UNKNOWN IMPORTED)
|
|
set_target_properties(SDL2::Core PROPERTIES
|
|
IMPORTED_LOCATION "${SDL2_LIBRARY}"
|
|
INTERFACE_INCLUDE_DIRECTORIES "${SDL2_INCLUDE_DIR}")
|
|
|
|
if(APPLE)
|
|
# For OS X, SDL2 uses Cocoa as a backend so it must link to Cocoa.
|
|
# For more details, please see above.
|
|
set_property(TARGET SDL2::Core APPEND PROPERTY
|
|
INTERFACE_LINK_OPTIONS "-framework Cocoa")
|
|
else()
|
|
# For threads, as mentioned Apple doesn't need this.
|
|
# For more details, please see above.
|
|
set_property(TARGET SDL2::Core APPEND PROPERTY
|
|
INTERFACE_LINK_LIBRARIES Threads::Threads)
|
|
endif()
|
|
endif()
|
|
|
|
# SDL2::Main target
|
|
# Applications should link to SDL2::Main instead of SDL2::Core
|
|
# For more details, please see above.
|
|
if(NOT SDL2_BUILDING_LIBRARY AND NOT TARGET SDL2::Main)
|
|
|
|
if(SDL2_INCLUDE_DIR MATCHES ".framework" OR NOT SDL2MAIN_LIBRARY)
|
|
add_library(SDL2::Main INTERFACE IMPORTED)
|
|
set_property(TARGET SDL2::Main PROPERTY
|
|
INTERFACE_LINK_LIBRARIES SDL2::Core)
|
|
elseif(SDL2MAIN_LIBRARY)
|
|
# MinGW requires that the mingw32 library is specified before the
|
|
# libSDL2main.a static library when linking.
|
|
# The SDL2::MainInternal target is used internally to make sure that
|
|
# CMake respects this condition.
|
|
add_library(SDL2::MainInternal UNKNOWN IMPORTED)
|
|
set_property(TARGET SDL2::MainInternal PROPERTY
|
|
IMPORTED_LOCATION "${SDL2MAIN_LIBRARY}")
|
|
set_property(TARGET SDL2::MainInternal PROPERTY
|
|
INTERFACE_LINK_LIBRARIES SDL2::Core)
|
|
|
|
add_library(SDL2::Main INTERFACE IMPORTED)
|
|
|
|
if(MINGW)
|
|
# MinGW needs an additional link flag '-mwindows' and link to mingw32
|
|
set_property(TARGET SDL2::Main PROPERTY
|
|
INTERFACE_LINK_LIBRARIES "mingw32" "-mwindows")
|
|
endif()
|
|
|
|
set_property(TARGET SDL2::Main APPEND PROPERTY
|
|
INTERFACE_LINK_LIBRARIES SDL2::MainInternal)
|
|
endif()
|
|
|
|
endif()
|
|
endif()
|