diff --git a/CMakeTests/FindOpenAL.cmake b/CMakeTests/FindOpenAL.cmake new file mode 100644 index 0000000000..b1d8854786 --- /dev/null +++ b/CMakeTests/FindOpenAL.cmake @@ -0,0 +1,98 @@ +# Distributed under the OSI-approved BSD 3-Clause License. See accompanying +# file Copyright.txt or https://cmake.org/licensing for details. + +#.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. + +# 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 include/AL include/OpenAL include + 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) + +include(FindPackageHandleStandardArgs) +FIND_PACKAGE_HANDLE_STANDARD_ARGS(OpenAL DEFAULT_MSG OPENAL_LIBRARY OPENAL_INCLUDE_DIR) + +mark_as_advanced(OPENAL_LIBRARY OPENAL_INCLUDE_DIR)