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FindALSA: support version selection

This commit is contained in:
Rolf Eike Beer 2012-01-25 17:50:37 +01:00
parent 731f996ce0
commit 1de14ec56e
1 changed files with 11 additions and 1 deletions
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12
Modules/FindALSA.cmake
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@ -8,6 +8,7 @@
#
# 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)
#
#=============================================================================
@ -33,10 +34,19 @@ find_library(ALSA_LIBRARY NAMES asound
DOC "The ALSA (asound) library"
)
if(ALSA_INCLUDE_DIR AND EXISTS "${ALSA_INCLUDE_DIR}/version.h")
file(STRINGS "${ALSA_INCLUDE_DIR}/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 DEFAULT_MSG ALSA_LIBRARY ALSA_INCLUDE_DIR)
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} )