#.rst: # FindOpenAL # ---------- # # # # Locate OpenAL This module defines OPENAL_LIBRARY OPENAL_FOUND, if # false, do not try to link to OpenAL OPENAL_INCLUDE_DIR, where to find # the headers # # $OPENALDIR is an environment variable that would correspond to the # ./configure --prefix=$OPENALDIR used in building OpenAL. # # Created by Eric Wing. This was influenced by the FindSDL.cmake # module. #============================================================================= # Copyright 2005-2009 Kitware, Inc. # # 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 # implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. # See the License for more information. #============================================================================= # (To distribute this file outside of CMake, substitute the full # License text for the above reference.) # This makes the presumption that you are include al.h like # #include "al.h" # and not # #include # The reason for this is that the latter is not entirely portable. # Windows/Creative Labs does not by default put their headers in AL/ and # OS X uses the convention . # # For Windows, Creative Labs seems to have added a registry key for their # OpenAL 1.1 installer. I have added that key to the list of search paths, # however, the key looks like it could be a little fragile depending on # if they decide to change the 1.00.0000 number for bug fix releases. # Also, they seem to have laid down groundwork for multiple library platforms # which puts the library in an extra subdirectory. Currently there is only # Win32 and I have hardcoded that here. This may need to be adjusted as # platforms are introduced. # The OpenAL 1.0 installer doesn't seem to have a useful key I can use. # I do not know if the Nvidia OpenAL SDK has a registry key. # # For OS X, remember that OpenAL was added by Apple in 10.4 (Tiger). # To support the framework, I originally wrote special framework detection # code in this module which I have now removed with CMake's introduction # of native support for frameworks. # In addition, OpenAL is open source, and it is possible to compile on Panther. # Furthermore, due to bugs in the initial OpenAL release, and the # transition to OpenAL 1.1, it is common to need to override the built-in # framework. # Per my request, CMake should search for frameworks first in # the following order: # ~/Library/Frameworks/OpenAL.framework/Headers # /Library/Frameworks/OpenAL.framework/Headers # /System/Library/Frameworks/OpenAL.framework/Headers # # On OS X, this will prefer the Framework version (if found) over others. # People will have to manually change the cache values of # OPENAL_LIBRARY to override this selection or set the CMake environment # CMAKE_INCLUDE_PATH to modify the search paths. find_path(OPENAL_INCLUDE_DIR al.h HINTS ENV OPENALDIR PATH_SUFFIXES AL OpenAL PATHS ~/Library/Frameworks /Library/Frameworks /sw # Fink /opt/local # DarwinPorts /opt/csw # Blastwave /opt [HKEY_LOCAL_MACHINE\\SOFTWARE\\Creative\ Labs\\OpenAL\ 1.1\ Software\ Development\ Kit\\1.00.0000;InstallDir] ) if(CMAKE_SIZEOF_VOID_P EQUAL 8) set(_OpenAL_ARCH_DIR libs/Win64) else() set(_OpenAL_ARCH_DIR libs/Win32) endif() find_library(OPENAL_LIBRARY NAMES OpenAL al openal OpenAL32 HINTS ENV OPENALDIR PATH_SUFFIXES lib64 lib libs64 libs ${_OpenAL_ARCH_DIR} PATHS ~/Library/Frameworks /Library/Frameworks /sw /opt/local /opt/csw /opt [HKEY_LOCAL_MACHINE\\SOFTWARE\\Creative\ Labs\\OpenAL\ 1.1\ Software\ Development\ Kit\\1.00.0000;InstallDir] ) unset(_OpenAL_ARCH_DIR) # handle the QUIETLY and REQUIRED arguments and set OPENAL_FOUND to TRUE if # all listed variables are TRUE include(FindPackageHandleStandardArgs) FIND_PACKAGE_HANDLE_STANDARD_ARGS(OpenAL DEFAULT_MSG OPENAL_LIBRARY OPENAL_INCLUDE_DIR) mark_as_advanced(OPENAL_LIBRARY OPENAL_INCLUDE_DIR)