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+# - Find alsa
+# Find the alsa libraries (asound)
+#
+# 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
+#
+# 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)
+#
+
+#=============================================================================
+# Copyright 2009-2011 Kitware, Inc.
+# Copyright 2009-2011 Philip Lowman <philip@yhbt.com>
+#
+# 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.)
+
+find_path(ALSA_INCLUDE_DIR NAMES alsa/asoundlib.h
+ DOC "The ALSA (asound) include directory"
+)
+
+find_library(ALSA_LIBRARY NAMES asound
+ DOC "The ALSA (asound) library"
+)
+
+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 ]+\".*\"")
+
+ string(REGEX REPLACE "^.*SND_LIB_VERSION_STR[\t ]+\"([^\"]*)\".*$" "\\1" ALSA_VERSION_STRING "${alsa_version_str}")
+ unset(alsa_version_str)
+endif()
+
+# handle the QUIETLY and REQUIRED arguments and set ALSA_FOUND to TRUE if
+# all listed variables are TRUE
+include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(ALSA
+ REQUIRED_VARS ALSA_LIBRARY ALSA_INCLUDE_DIR
+ VERSION_VAR ALSA_VERSION_STRING)
+
+if(ALSA_FOUND)
+ set( ALSA_LIBRARIES ${ALSA_LIBRARY} )
+ set( ALSA_INCLUDE_DIRS ${ALSA_INCLUDE_DIR} )
+endif()
+
+mark_as_advanced(ALSA_INCLUDE_DIR ALSA_LIBRARY)