dolphin/CMakeTests/FindALSA.cmake

60 lines
1.8 KiB
CMake

# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
#.rst:
# FindALSA
# --------
#
# 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)
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()
include(FindPackageHandleStandardArgs)
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} )
if(NOT TARGET ALSA::ALSA)
add_library(ALSA::ALSA UNKNOWN IMPORTED)
set_target_properties(ALSA::ALSA PROPERTIES
IMPORTED_LOCATION ${ALSA_LIBRARY}
INTERFACE_INCLUDE_DIRECTORIES ${ALSA_INCLUDE_DIR}
)
endif()
endif()
mark_as_advanced(ALSA_INCLUDE_DIR ALSA_LIBRARY)