diff options
Diffstat (limited to 'Modules/FindSDL.cmake')
| -rw-r--r-- | Modules/FindSDL.cmake | 167 |
1 files changed, 86 insertions, 81 deletions
diff --git a/Modules/FindSDL.cmake b/Modules/FindSDL.cmake index 1c04726ea..f2e9f25f5 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) |