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# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file Copyright.txt or https://cmake.org/licensing for details.
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#.rst:
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# FindALSA
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# --------
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#
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# Find alsa
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#
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# Find the alsa libraries (asound)
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#
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# ::
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#
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# This module defines the following variables:
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# ALSA_FOUND - True if ALSA_INCLUDE_DIR & ALSA_LIBRARY are found
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# ALSA_LIBRARIES - Set when ALSA_LIBRARY is found
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# ALSA_INCLUDE_DIRS - Set when ALSA_INCLUDE_DIR is found
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#
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#
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#
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# ::
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#
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# ALSA_INCLUDE_DIR - where to find asoundlib.h, etc.
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# ALSA_LIBRARY - the asound library
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# ALSA_VERSION_STRING - the version of alsa found (since CMake 2.8.8)
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find_path(ALSA_INCLUDE_DIR NAMES alsa/asoundlib.h
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DOC "The ALSA (asound) include directory"
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)
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find_library(ALSA_LIBRARY NAMES asound
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DOC "The ALSA (asound) library"
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)
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if(ALSA_INCLUDE_DIR AND EXISTS "${ALSA_INCLUDE_DIR}/alsa/version.h")
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file(STRINGS "${ALSA_INCLUDE_DIR}/alsa/version.h" alsa_version_str REGEX "^#define[\t ]+SND_LIB_VERSION_STR[\t ]+\".*\"")
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string(REGEX REPLACE "^.*SND_LIB_VERSION_STR[\t ]+\"([^\"]*)\".*$" "\\1" ALSA_VERSION_STRING "${alsa_version_str}")
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unset(alsa_version_str)
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endif()
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include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
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FIND_PACKAGE_HANDLE_STANDARD_ARGS(ALSA
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REQUIRED_VARS ALSA_LIBRARY ALSA_INCLUDE_DIR
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VERSION_VAR ALSA_VERSION_STRING)
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if(ALSA_FOUND)
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set( ALSA_LIBRARIES ${ALSA_LIBRARY} )
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set( ALSA_INCLUDE_DIRS ${ALSA_INCLUDE_DIR} )
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endif()
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mark_as_advanced(ALSA_INCLUDE_DIR ALSA_LIBRARY)
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