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# - Try to find ALSA
# Once done, this will define
#
# ALSA_FOUND - system has ALSA (GL and GLU)
# ALSA_INCLUDE_DIRS - the ALSA include directories
# ALSA_LIBRARIES - link these to use ALSA
# ALSA_GL_LIBRARY - only GL
# ALSA_GLU_LIBRARY - only GLU
#
# See documentation on how to write CMake scripts at
# http://www.cmake.org/Wiki/CMake:How_To_Find_Libraries
include(LibFindMacros)
libfind_pkg_check_modules(ALSA_PKGCONF alsa)
find_path(ALSA_INCLUDE_DIR
NAMES alsa/version.h
PATHS ${ALSA_PKGCONF_INCLUDE_DIRS}
)
find_library(ALSA_LIBRARY
NAMES asound
PATHS ${ALSA_PKGCONF_LIBRARY_DIRS}
)
# Extract the version number
IF(ALSA_INCLUDE_DIR)
file(READ "${ALSA_INCLUDE_DIR}/alsa/version.h" _ALSA_VERSION_H_CONTENTS)
string(REGEX REPLACE ".*#define SND_LIB_VERSION_STR[ \t]*\"([^\n]*)\".*" "\\1" ALSA_VERSION "${_ALSA_VERSION_H_CONTENTS}")
ENDIF(ALSA_INCLUDE_DIR)
set(ALSA_PROCESS_INCLUDES ALSA_INCLUDE_DIR)
set(ALSA_PROCESS_LIBS ALSA_LIBRARY)
libfind_process(ALSA)
if (ALSA_FOUND AND NOT TARGET ALSA::ALSA)
add_library(ALSA::ALSA INTERFACE IMPORTED)
set_target_properties(ALSA::ALSA PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "${ALSA_INCLUDE_DIRS}"
INTERFACE_LINK_LIBRARIES "${ALSA_LIBRARY}"
)
endif()
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