--- a/cmake/modules/FindAlsa.cmake
+++ b/cmake/modules/FindAlsa.cmake
@@ -13,10 +13,14 @@
 # Redistribution and use is allowed according to the terms of the BSD license.
 # For details see the accompanying COPYING-CMAKE-SCRIPTS file.
 
+OPTION(WITH_Alsa "Support for the ALSA sound system." ON)
+
 include(CheckIncludeFiles)
 include(CheckIncludeFileCXX)
 include(CheckLibraryExists)
 
+if(WITH_Alsa)
+
 # Already done by toplevel
 find_library(ASOUND_LIBRARY asound)
 check_library_exists(asound snd_seq_create_simple_port ${ASOUND_LIBRARY} HAVE_LIBASOUND2)
@@ -29,19 +33,22 @@
 
 find_path(ALSA_INCLUDES alsa/version.h)
 
+endif(WITH_Alsa)
+
 macro(ALSA_VERSION_STRING _result)
     # check for version in alsa/version.h
-    if(ALSA_INCLUDES)
+    if(WITH_Alsa AND ALSA_INCLUDES)
         file(READ "${ALSA_INCLUDES}/alsa/version.h" _ALSA_VERSION_CONTENT)
         string(REGEX REPLACE ".*SND_LIB_VERSION_STR.*\"(.*)\".*" "\\1" ${_result} ${_ALSA_VERSION_CONTENT})
-    else(ALSA_INCLUDES)
+    else(WITH_Alsa AND ALSA_INCLUDES)
         message(STATUS "ALSA version not known. ALSA output will probably not work correctly.")
-    endif(ALSA_INCLUDES)
+    endif(WITH_Alsa AND ALSA_INCLUDES)
 endmacro(ALSA_VERSION_STRING _result)
 
 
 get_filename_component(_FIND_ALSA_MODULE_DIR ${CMAKE_CURRENT_LIST_FILE} PATH)
 macro(ALSA_CONFIGURE_FILE _destFile)
+	if(WITH_Alsa)
     check_include_files(sys/soundcard.h HAVE_SYS_SOUNDCARD_H)
     check_include_files(machine/soundcard.h HAVE_MACHINE_SOUNDCARD_H)
 
@@ -58,6 +65,7 @@
         set(HAVE_SND_PCM_RESUME 1)
     endif(ASOUND_HAS_SND_PCM_RESUME)
 
+	endif(WITH_Alsa)
     configure_file(${_FIND_ALSA_MODULE_DIR}/config-alsa.h.cmake ${_destFile})
 endmacro(ALSA_CONFIGURE_FILE _destFile)