FindAlsa.cmake (2993B)
1 # Alsa check, based on libkmid/configure.in.in. 2 # Only the support for Alsa >= 0.9.x was included; 0.5.x was dropped (but feel free to re-add it if you need it) 3 # It defines ... 4 # It offers the following macros: 5 # ALSA_CONFIGURE_FILE(config_header) - generate a config.h, typical usage: 6 # ALSA_CONFIGURE_FILE(${CMAKE_BINARY_DIR}/config-alsa.h) 7 # ALSA_VERSION_STRING(version_string) looks for alsa/version.h and reads the version string into 8 # the first argument passed to the macro 9 10 # Copyright (c) 2006, David Faure, <[email protected]> 11 # Copyright (c) 2007, Matthias Kretz <[email protected]> 12 # 13 # Redistribution and use is allowed according to the terms of the BSD license. 14 # For details see the accompanying COPYING-CMAKE-SCRIPTS file. 15 16 include(CheckIncludeFiles) 17 include(CheckIncludeFileCXX) 18 include(CheckLibraryExists) 19 20 # Already done by toplevel 21 find_library(ASOUND_LIBRARY asound) 22 set(ASOUND_LIBRARY_DIR "") 23 if(ASOUND_LIBRARY) 24 get_filename_component(ASOUND_LIBRARY_DIR ${ASOUND_LIBRARY} PATH) 25 endif(ASOUND_LIBRARY) 26 27 check_library_exists(asound snd_seq_create_simple_port "${ASOUND_LIBRARY_DIR}" HAVE_LIBASOUND2) 28 if(HAVE_LIBASOUND2) 29 message(STATUS "Found ALSA: ${ASOUND_LIBRARY}") 30 else(HAVE_LIBASOUND2) 31 message(STATUS "ALSA not found") 32 endif(HAVE_LIBASOUND2) 33 set(ALSA_FOUND ${HAVE_LIBASOUND2}) 34 35 find_path(ALSA_INCLUDES alsa/version.h) 36 37 macro(ALSA_VERSION_STRING _result) 38 # check for version in alsa/version.h 39 if(ALSA_INCLUDES) 40 file(READ "${ALSA_INCLUDES}/alsa/version.h" _ALSA_VERSION_CONTENT) 41 string(REGEX REPLACE ".*SND_LIB_VERSION_STR.*\"(.*)\".*" "\\1" ${_result} ${_ALSA_VERSION_CONTENT}) 42 else(ALSA_INCLUDES) 43 message(STATUS "ALSA version not known. ALSA output will probably not work correctly.") 44 endif(ALSA_INCLUDES) 45 endmacro(ALSA_VERSION_STRING _result) 46 47 48 get_filename_component(_FIND_ALSA_MODULE_DIR ${CMAKE_CURRENT_LIST_FILE} PATH) 49 macro(ALSA_CONFIGURE_FILE _destFile) 50 check_include_files(sys/soundcard.h HAVE_SYS_SOUNDCARD_H) 51 check_include_files(machine/soundcard.h HAVE_MACHINE_SOUNDCARD_H) 52 53 check_include_files(linux/awe_voice.h HAVE_LINUX_AWE_VOICE_H) 54 check_include_files(awe_voice.h HAVE_AWE_VOICE_H) 55 check_include_files(/usr/src/sys/i386/isa/sound/awe_voice.h HAVE__USR_SRC_SYS_I386_ISA_SOUND_AWE_VOICE_H) 56 check_include_files(/usr/src/sys/gnu/i386/isa/sound/awe_voice.h HAVE__USR_SRC_SYS_GNU_I386_ISA_SOUND_AWE_VOICE_H) 57 58 check_include_file_cxx(sys/asoundlib.h HAVE_SYS_ASOUNDLIB_H) 59 check_include_file_cxx(alsa/asoundlib.h HAVE_ALSA_ASOUNDLIB_H) 60 61 check_library_exists(asound snd_pcm_resume "${ASOUND_LIBRARY_DIR}" ASOUND_HAS_SND_PCM_RESUME) 62 if(ASOUND_HAS_SND_PCM_RESUME) 63 set(HAVE_SND_PCM_RESUME 1) 64 endif(ASOUND_HAS_SND_PCM_RESUME) 65 66 configure_file(${_FIND_ALSA_MODULE_DIR}/config-alsa.h.cmake ${_destFile}) 67 endmacro(ALSA_CONFIGURE_FILE _destFile) 68 69 mark_as_advanced(ALSA_INCLUDES ASOUND_LIBRARY)