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CMake/Modules/FindALSA.cmake

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Convert builtin help to reStructuredText source files Run the convert-help.bash script to convert documentation: ./convert-help.bash "/path/to/CMake-build/bin" Then remove it.
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#.rst:
# FindALSA
# --------
#
# Find alsa
#
[NEW Module] FindAlsa audio library (Advanced Linux Sound Architecture)
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# Find the alsa libraries (asound)
#
Convert builtin help to reStructuredText source files Run the convert-help.bash script to convert documentation: ./convert-help.bash "/path/to/CMake-build/bin" Then remove it.
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# ::
#
# This module defines the following variables:
# ALSA_FOUND - True if ALSA_INCLUDE_DIR & ALSA_LIBRARY are found
# ALSA_LIBRARIES - Set when ALSA_LIBRARY is found
# ALSA_INCLUDE_DIRS - Set when ALSA_INCLUDE_DIR is found
#
#
[NEW Module] FindAlsa audio library (Advanced Linux Sound Architecture)
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#
Convert builtin help to reStructuredText source files Run the convert-help.bash script to convert documentation: ./convert-help.bash "/path/to/CMake-build/bin" Then remove it.
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# ::
[NEW Module] FindAlsa audio library (Advanced Linux Sound Architecture)
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#
Convert builtin help to reStructuredText source files Run the convert-help.bash script to convert documentation: ./convert-help.bash "/path/to/CMake-build/bin" Then remove it.
2013-10-15 19:17:36 +04:00
# ALSA_INCLUDE_DIR - where to find asoundlib.h, etc.
# ALSA_LIBRARY - the asound library
# ALSA_VERSION_STRING - the version of alsa found (since CMake 2.8.8)
[NEW Module] FindAlsa audio library (Advanced Linux Sound Architecture)
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Convert CMake find-modules to BSD License This adds copyright/license notification blocks CMake's find-modules. Many of the modules had no notices at all. Some had notices referring to the BSD license already. This commit normalizes existing notices and adds missing notices.
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#=============================================================================
FindALSA: Fix incorrect include path detection This fixes a bug where the alsa include path was being detected incorrectly (e.g. /usr/local/include/alsa instead of /usr/local/include)
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# Copyright 2009-2011 Kitware, Inc.
# Copyright 2009-2011 Philip Lowman <philip@yhbt.com>
Convert CMake find-modules to BSD License This adds copyright/license notification blocks CMake's find-modules. Many of the modules had no notices at all. Some had notices referring to the BSD license already. This commit normalizes existing notices and adds missing notices.
2009-09-28 19:45:50 +04:00
#
# 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.
#=============================================================================
Modules: Fix spelling 'To distributed' -> 'To distribute'
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# (To distribute this file outside of CMake, substitute the full
Convert CMake find-modules to BSD License This adds copyright/license notification blocks CMake's find-modules. Many of the modules had no notices at all. Some had notices referring to the BSD license already. This commit normalizes existing notices and adds missing notices.
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# License text for the above reference.)
FindALSA: Fix version detection after last commit Also, removed detection of header file from <PREFIX>/include. Can't find any example in alsa source code where the library headers were installed outside of <PREFIX>/include/alsa.
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find_path(ALSA_INCLUDE_DIR NAMES alsa/asoundlib.h
[NEW Module] FindAlsa audio library (Advanced Linux Sound Architecture)
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DOC "The ALSA (asound) include directory"
)
find_library(ALSA_LIBRARY NAMES asound
DOC "The ALSA (asound) library"
)
FindALSA: Fix version detection after last commit Also, removed detection of header file from <PREFIX>/include. Can't find any example in alsa source code where the library headers were installed outside of <PREFIX>/include/alsa.
2012-02-12 05:37:48 +04:00
if(ALSA_INCLUDE_DIR AND EXISTS "${ALSA_INCLUDE_DIR}/alsa/version.h")
file(STRINGS "${ALSA_INCLUDE_DIR}/alsa/version.h" alsa_version_str REGEX "^#define[\t ]+SND_LIB_VERSION_STR[\t ]+\".*\"")
FindALSA: support version selection
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string(REGEX REPLACE "^.*SND_LIB_VERSION_STR[\t ]+\"([^\"]*)\".*$" "\\1" ALSA_VERSION_STRING "${alsa_version_str}")
unset(alsa_version_str)
endif()
Remove trailing whitespace from most CMake and C/C++ code Our Git commit hooks disallow modification or addition of lines with trailing whitespace. Wipe out all remnants of trailing whitespace everywhere except third-party code. Run the following shell code: git ls-files -z -- \ bootstrap doxygen.config '*.readme' \ '*.c' '*.cmake' '*.cpp' '*.cxx' \ '*.el' '*.f' '*.f90' '*.h' '*.in' '*.in.l' '*.java' \ '*.mm' '*.pike' '*.py' '*.txt' '*.vim' | egrep -z -v '^(Utilities/cm|Source/(kwsys|CursesDialog/form)/)' | egrep -z -v '^(Modules/CPack\..*\.in)' | xargs -0 sed -i 's/ \+$//'
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# handle the QUIETLY and REQUIRED arguments and set ALSA_FOUND to TRUE if
[NEW Module] FindAlsa audio library (Advanced Linux Sound Architecture)
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# all listed variables are TRUE
Modules: Include builtin FindPackageHandleStandardArgs directly The FindPackageHandleStandardArgs module was originally created outside of CMake. It was added for CMake 2.6.0 by commit e118a627 (add a macro FIND_PACKAGE_HANDLE_STANDARD_ARGS..., 2007-07-18). However, it also proliferated into a number of other projects that at the time required only CMake 2.4 and thus could not depend on CMake to provide the module. CMake's own find modules started using the module in commit b5f656e0 (use the new FIND_PACKAGE_HANDLE_STANDARD_ARGS in some of the FindXXX modules..., 2007-07-18). Then commit d358cf5c (add 2nd, more powerful mode to find_package_handle_standard_args, 2010-07-29) added a new feature to the interface of the module that was fully optional and backward compatible with all existing users of the module. Later commit 5f183caa (FindZLIB: use the FPHSA version mode, 2010-08-04) and others shortly thereafter started using the new interface in CMake's own find modules. This change was also backward compatible because it was only an implementation detail within each module. Unforutnately these changes introduced a problem for projects that still have an old copy of FindPackageHandleStandardArgs in CMAKE_MODULE_PATH. When any such project uses one of CMake's builtin find modules the line include(FindPackageHandleStandardArgs) loads the copy from the project which does not have the new interface! Then the including find module tries to use the new interface with the old module and fails. Whether this breakage can be considered a backward incompatible change in CMake is debatable. The situation is analagous to copying a standard library header from one version of a compiler into a project and then observing problems when the next version of the compiler reports errors in its other headers that depend on its new version of the original header. Nevertheless it is a change to CMake that causes problems for projects that worked with previous versions. This problem was discovered during the 2.8.3 release candidate cycle. It is an instance of a more general problem with projects that provide their own versions of CMake modules when other CMake modules depend on them. At the time we resolved this instance of the problem with commit b0118402 (Use absolute path to FindPackageHandleStandardArgs.cmake everywhere, 2010-09-28) for the 2.8.3 release. In order to address the more general problem we introduced policy CMP0017 in commit db44848f (Prefer files from CMAKE_ROOT when including from CMAKE_ROOT, 2010-11-17). That change was followed by commit ce28737c (Remove usage of CMAKE_CURRENT_LIST_DIR now that we have CMP0017, 2010-12-20) which reverted the original workaround in favor of using the policy. However, existing project releases do not set the policy behavior to NEW and therefore still exhibit the problem. We introduced in commit a364daf1 (Allow users to specify defaults for unset policies, 2011-01-03) an option for users to build existing projects by adding -DCMAKE_POLICY_DEFAULT_CMP0017=NEW to the command line. Unfortunately this solution still does not allow such projects to build out of the box, and there is no good way to suggest the use of the new option. The only remaining solution to keep existing projects that exhibit this problem building is to restore the change originally made in commit b0118402 (Use absolute path to FindPackageHandleStandardArgs.cmake everywhere, 2010-09-28). This also avoids policy CMP0017 warnings for this particular instance of the problem the policy addresses.
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include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
FindALSA: support version selection
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FIND_PACKAGE_HANDLE_STANDARD_ARGS(ALSA
REQUIRED_VARS ALSA_LIBRARY ALSA_INCLUDE_DIR
VERSION_VAR ALSA_VERSION_STRING)
[NEW Module] FindAlsa audio library (Advanced Linux Sound Architecture)
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if(ALSA_FOUND)
set( ALSA_LIBRARIES ${ALSA_LIBRARY} )
set( ALSA_INCLUDE_DIRS ${ALSA_INCLUDE_DIR} )
endif()
mark_as_advanced(ALSA_INCLUDE_DIR ALSA_LIBRARY)