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b04650e163
Instead of directly passing $ENV{SOMEVAR} to a find_* call pass in ENV SOMEVAR.
This will make sure the paths will get correctly handled through different
platforms, especially on Windows.
Also fixes one place where paths with windows delimiters (\) were hardcoded to
use forward slashes.
100 lines
3.9 KiB
CMake
100 lines
3.9 KiB
CMake
# Locate OpenAL
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# This module defines
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# OPENAL_LIBRARY
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# OPENAL_FOUND, if false, do not try to link to OpenAL
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# OPENAL_INCLUDE_DIR, where to find the headers
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#
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# $OPENALDIR is an environment variable that would
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# correspond to the ./configure --prefix=$OPENALDIR
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# used in building OpenAL.
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#
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# Created by Eric Wing. This was influenced by the FindSDL.cmake module.
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#=============================================================================
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# Copyright 2005-2009 Kitware, Inc.
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#
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# Distributed under the OSI-approved BSD License (the "License");
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# see accompanying file Copyright.txt for details.
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#
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# This software is distributed WITHOUT ANY WARRANTY; without even the
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# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See the License for more information.
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#=============================================================================
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# (To distribute this file outside of CMake, substitute the full
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# License text for the above reference.)
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# This makes the presumption that you are include al.h like
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# #include "al.h"
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# and not
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# #include <AL/al.h>
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# The reason for this is that the latter is not entirely portable.
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# Windows/Creative Labs does not by default put their headers in AL/ and
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# OS X uses the convention <OpenAL/al.h>.
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#
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# For Windows, Creative Labs seems to have added a registry key for their
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# OpenAL 1.1 installer. I have added that key to the list of search paths,
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# however, the key looks like it could be a little fragile depending on
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# if they decide to change the 1.00.0000 number for bug fix releases.
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# Also, they seem to have laid down groundwork for multiple library platforms
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# which puts the library in an extra subdirectory. Currently there is only
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# Win32 and I have hardcoded that here. This may need to be adjusted as
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# platforms are introduced.
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# The OpenAL 1.0 installer doesn't seem to have a useful key I can use.
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# I do not know if the Nvidia OpenAL SDK has a registry key.
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#
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# For OS X, remember that OpenAL was added by Apple in 10.4 (Tiger).
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# To support the framework, I originally wrote special framework detection
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# code in this module which I have now removed with CMake's introduction
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# of native support for frameworks.
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# In addition, OpenAL is open source, and it is possible to compile on Panther.
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# Furthermore, due to bugs in the initial OpenAL release, and the
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# transition to OpenAL 1.1, it is common to need to override the built-in
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# framework.
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# Per my request, CMake should search for frameworks first in
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# the following order:
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# ~/Library/Frameworks/OpenAL.framework/Headers
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# /Library/Frameworks/OpenAL.framework/Headers
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# /System/Library/Frameworks/OpenAL.framework/Headers
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#
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# On OS X, this will prefer the Framework version (if found) over others.
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# People will have to manually change the cache values of
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# OPENAL_LIBRARY to override this selection or set the CMake environment
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# CMAKE_INCLUDE_PATH to modify the search paths.
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find_path(OPENAL_INCLUDE_DIR al.h
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HINTS
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ENV OPENALDIR
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PATH_SUFFIXES include/AL include/OpenAL include
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PATHS
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~/Library/Frameworks
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/Library/Frameworks
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/sw # Fink
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/opt/local # DarwinPorts
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/opt/csw # Blastwave
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/opt
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[HKEY_LOCAL_MACHINE\\SOFTWARE\\Creative\ Labs\\OpenAL\ 1.1\ Software\ Development\ Kit\\1.00.0000;InstallDir]
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)
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find_library(OPENAL_LIBRARY
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NAMES OpenAL al openal OpenAL32
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HINTS
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ENV OPENALDIR
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PATH_SUFFIXES lib64 lib libs64 libs libs/Win32 libs/Win64
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PATHS
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~/Library/Frameworks
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/Library/Frameworks
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/sw
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/opt/local
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/opt/csw
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/opt
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[HKEY_LOCAL_MACHINE\\SOFTWARE\\Creative\ Labs\\OpenAL\ 1.1\ Software\ Development\ Kit\\1.00.0000;InstallDir]
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)
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# handle the QUIETLY and REQUIRED arguments and set OPENAL_FOUND to TRUE if
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# all listed variables are TRUE
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include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
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FIND_PACKAGE_HANDLE_STANDARD_ARGS(OpenAL DEFAULT_MSG OPENAL_LIBRARY OPENAL_INCLUDE_DIR)
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mark_as_advanced(OPENAL_LIBRARY OPENAL_INCLUDE_DIR)
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