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-rw-r--r--Modules/FindSDL.cmake167
1 files changed, 86 insertions, 81 deletions
diff --git a/Modules/FindSDL.cmake b/Modules/FindSDL.cmake
index 1c04726..f2e9f25 100644
--- a/Modules/FindSDL.cmake
+++ b/Modules/FindSDL.cmake
@@ -1,27 +1,28 @@
-# Locate SDL library
+# - Locate SDL library
# This module defines
-# SDL_LIBRARY, the name of the library to link against
-# SDL_FOUND, if false, do not try to link to SDL
-# SDL_INCLUDE_DIR, where to find SDL.h
+# SDL_LIBRARY, the name of the library to link against
+# SDL_FOUND, if false, do not try to link to SDL
+# SDL_INCLUDE_DIR, where to find SDL.h
+# SDL_VERSION_STRING, human-readable string containing the version of SDL
#
# This module responds to the the flag:
-# SDL_BUILDING_LIBRARY
-# If this is defined, then no SDL_main will be linked in because
-# only applications need main().
-# Otherwise, it is assumed you are building an application and this
-# module will attempt to locate and set the the proper link flags
-# as part of the returned SDL_LIBRARY variable.
+# SDL_BUILDING_LIBRARY
+# If this is defined, then no SDL_main will be linked in because
+# only applications need main().
+# Otherwise, it is assumed you are building an application and this
+# module will attempt to locate and set the the proper link flags
+# as part of the returned SDL_LIBRARY variable.
#
-# Don't forget to include SDLmain.h and SDLmain.m your project for the
+# Don't forget to include SDLmain.h and SDLmain.m your project for the
# OS X framework based version. (Other versions link to -lSDLmain 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.
#
#
# Additional Note: If you see an empty SDL_LIBRARY_TEMP in your configuration
-# and no SDL_LIBRARY, it means CMake did not find your SDL library
-# (SDL.dll, libsdl.so, SDL.framework, etc).
-# Set SDL_LIBRARY_TEMP to point to your SDL library, and configure again.
+# and no SDL_LIBRARY, it means CMake did not find your SDL library
+# (SDL.dll, libsdl.so, SDL.framework, etc).
+# Set SDL_LIBRARY_TEMP to point to your SDL library, and configure again.
# Similarly, if you see an empty SDLMAIN_LIBRARY, you should set this value
# as appropriate. These values are used to generate the final SDL_LIBRARY
# variable, but when these values are unset, SDL_LIBRARY does not get created.
@@ -32,18 +33,18 @@
# used in building SDL.
# l.e.galup 9-20-02
#
-# Modified by Eric Wing.
+# 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).
+# 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 values of
+# People will have to manually change the cache values of
# SDL_LIBRARY to override this selection or set the CMake environment
# CMAKE_INCLUDE_PATH to modify the search paths.
#
@@ -54,6 +55,7 @@
#=============================================================================
# Copyright 2003-2009 Kitware, Inc.
+# Copyright 2012 Benjamin Eikel
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
@@ -65,109 +67,112 @@
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
-FIND_PATH(SDL_INCLUDE_DIR SDL.h
+find_path(SDL_INCLUDE_DIR SDL.h
HINTS
- $ENV{SDLDIR}
- PATH_SUFFIXES include/SDL include
- PATHS
- ~/Library/Frameworks
- /Library/Frameworks
- /usr/local/include/SDL12
- /usr/local/include/SDL11 # FreeBSD ports
- /usr/include/SDL12
- /usr/include/SDL11
- /sw # Fink
- /opt/local # DarwinPorts
- /opt/csw # Blastwave
- /opt
+ ENV SDLDIR
+ PATH_SUFFIXES include/SDL include/SDL12 include/SDL11 include
)
# SDL-1.1 is the name used by FreeBSD ports...
# don't confuse it for the version number.
-FIND_LIBRARY(SDL_LIBRARY_TEMP
+find_library(SDL_LIBRARY_TEMP
NAMES SDL SDL-1.1
HINTS
- $ENV{SDLDIR}
- PATH_SUFFIXES lib64 lib
- PATHS
- /sw
- /opt/local
- /opt/csw
- /opt
+ ENV SDLDIR
+ PATH_SUFFIXES lib
)
-IF(NOT SDL_BUILDING_LIBRARY)
- IF(NOT ${SDL_INCLUDE_DIR} MATCHES ".framework")
- # Non-OS X framework versions expect you to also dynamically link to
- # SDLmain. This is mainly for Windows and OS X. Other (Unix) platforms
+if(NOT SDL_BUILDING_LIBRARY)
+ if(NOT ${SDL_INCLUDE_DIR} MATCHES ".framework")
+ # Non-OS X framework versions expect you to also dynamically link to
+ # SDLmain. This is mainly for Windows and OS X. Other (Unix) platforms
# seem to provide SDLmain for compatibility even though they don't
# necessarily need it.
- FIND_LIBRARY(SDLMAIN_LIBRARY
+ find_library(SDLMAIN_LIBRARY
NAMES SDLmain SDLmain-1.1
HINTS
- $ENV{SDLDIR}
- PATH_SUFFIXES lib64 lib
+ ENV SDLDIR
+ PATH_SUFFIXES lib
PATHS
/sw
/opt/local
/opt/csw
/opt
)
- ENDIF(NOT ${SDL_INCLUDE_DIR} MATCHES ".framework")
-ENDIF(NOT SDL_BUILDING_LIBRARY)
+ endif()
+endif()
# SDL may require threads on your system.
-# The Apple build may not need an explicit flag because one of the
-# frameworks may already provide it.
+# 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)
-ENDIF(NOT APPLE)
+if(NOT APPLE)
+ find_package(Threads)
+endif()
# MinGW needs an additional library, mwindows
# It's total link flags should look like -lmingw32 -lSDLmain -lSDL -lmwindows
# (Actually on second look, I think it only needs one of the m* libraries.)
-IF(MINGW)
- SET(MINGW32_LIBRARY mingw32 CACHE STRING "mwindows for MinGW")
-ENDIF(MINGW)
+if(MINGW)
+ set(MINGW32_LIBRARY mingw32 CACHE STRING "mwindows for MinGW")
+endif()
-IF(SDL_LIBRARY_TEMP)
+if(SDL_LIBRARY_TEMP)
# For SDLmain
- IF(NOT SDL_BUILDING_LIBRARY)
- IF(SDLMAIN_LIBRARY)
- SET(SDL_LIBRARY_TEMP ${SDLMAIN_LIBRARY} ${SDL_LIBRARY_TEMP})
- ENDIF(SDLMAIN_LIBRARY)
- ENDIF(NOT SDL_BUILDING_LIBRARY)
+ if(SDLMAIN_LIBRARY AND NOT SDL_BUILDING_LIBRARY)
+ list(FIND SDL_LIBRARY_TEMP "${SDLMAIN_LIBRARY}" _SDL_MAIN_INDEX)
+ if(_SDL_MAIN_INDEX EQUAL -1)
+ list(APPEND SDL_LIBRARY_TEMP "${SDLMAIN_LIBRARY}")
+ endif()
+ unset(_SDL_MAIN_INDEX)
+ endif()
# For OS X, SDL uses Cocoa as a backend so it must link to Cocoa.
- # CMake doesn't display the -framework Cocoa string in the UI even
+ # 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
+ # So I use a temporary variable until the end so I can set the
# "real" variable in one-shot.
- IF(APPLE)
- SET(SDL_LIBRARY_TEMP ${SDL_LIBRARY_TEMP} "-framework Cocoa")
- ENDIF(APPLE)
-
+ if(APPLE)
+ set(SDL_LIBRARY_TEMP ${SDL_LIBRARY_TEMP} "-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(SDL_LIBRARY_TEMP ${SDL_LIBRARY_TEMP} ${CMAKE_THREAD_LIBS_INIT})
- ENDIF(NOT APPLE)
+ if(NOT APPLE)
+ set(SDL_LIBRARY_TEMP ${SDL_LIBRARY_TEMP} ${CMAKE_THREAD_LIBS_INIT})
+ endif()
# For MinGW library
- IF(MINGW)
- SET(SDL_LIBRARY_TEMP ${MINGW32_LIBRARY} ${SDL_LIBRARY_TEMP})
- ENDIF(MINGW)
+ if(MINGW)
+ set(SDL_LIBRARY_TEMP ${MINGW32_LIBRARY} ${SDL_LIBRARY_TEMP})
+ endif()
# Set the final string here so the GUI reflects the final state.
- SET(SDL_LIBRARY ${SDL_LIBRARY_TEMP} CACHE STRING "Where the SDL Library can be found")
+ set(SDL_LIBRARY ${SDL_LIBRARY_TEMP} CACHE STRING "Where the SDL Library can be found")
# Set the temp variable to INTERNAL so it is not seen in the CMake GUI
- SET(SDL_LIBRARY_TEMP "${SDL_LIBRARY_TEMP}" CACHE INTERNAL "")
-ENDIF(SDL_LIBRARY_TEMP)
+ set(SDL_LIBRARY_TEMP "${SDL_LIBRARY_TEMP}" CACHE INTERNAL "")
+endif()
+
+if(SDL_INCLUDE_DIR AND EXISTS "${SDL_INCLUDE_DIR}/SDL_version.h")
+ file(STRINGS "${SDL_INCLUDE_DIR}/SDL_version.h" SDL_VERSION_MAJOR_LINE REGEX "^#define[ \t]+SDL_MAJOR_VERSION[ \t]+[0-9]+$")
+ file(STRINGS "${SDL_INCLUDE_DIR}/SDL_version.h" SDL_VERSION_MINOR_LINE REGEX "^#define[ \t]+SDL_MINOR_VERSION[ \t]+[0-9]+$")
+ file(STRINGS "${SDL_INCLUDE_DIR}/SDL_version.h" SDL_VERSION_PATCH_LINE REGEX "^#define[ \t]+SDL_PATCHLEVEL[ \t]+[0-9]+$")
+ string(REGEX REPLACE "^#define[ \t]+SDL_MAJOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL_VERSION_MAJOR "${SDL_VERSION_MAJOR_LINE}")
+ string(REGEX REPLACE "^#define[ \t]+SDL_MINOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL_VERSION_MINOR "${SDL_VERSION_MINOR_LINE}")
+ string(REGEX REPLACE "^#define[ \t]+SDL_PATCHLEVEL[ \t]+([0-9]+)$" "\\1" SDL_VERSION_PATCH "${SDL_VERSION_PATCH_LINE}")
+ set(SDL_VERSION_STRING ${SDL_VERSION_MAJOR}.${SDL_VERSION_MINOR}.${SDL_VERSION_PATCH})
+ unset(SDL_VERSION_MAJOR_LINE)
+ unset(SDL_VERSION_MINOR_LINE)
+ unset(SDL_VERSION_PATCH_LINE)
+ unset(SDL_VERSION_MAJOR)
+ unset(SDL_VERSION_MINOR)
+ unset(SDL_VERSION_PATCH)
+endif()
-INCLUDE(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
+include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(SDL
- REQUIRED_VARS SDL_LIBRARY SDL_INCLUDE_DIR)
+ REQUIRED_VARS SDL_LIBRARY SDL_INCLUDE_DIR
+ VERSION_VAR SDL_VERSION_STRING)