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https://gitee.com/openharmony/third_party_alsa-lib
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duplicated the required alsa-kernel header files into the local
include/sound directory, so that alsa-lib can be compiled without alsa-driver. with this addition, --with-kernel and --with-soundbase options are removed from configure. they are obviously unnecessary. the relevant parts in INSTALL are removed/modified.
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53
INSTALL
53
INSTALL
@ -10,37 +10,6 @@ For installation you can use these commands:
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./configure
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make install
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If ./configure command complain that alsa-driver package is not installed,
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please, check if --prefix option is same for alsa-driver and alsa-lib
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package. The configure script from alsa-lib package probably cannot find
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header file asound.h in $prefix/include/sound directory (usually in
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/usr/include/sound directory).
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Note: If you change kernel sources frequently, please, check if you have
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compiled and installed alsa-driver for current version of your kernel.
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Installation using a build-in version of ALSA in Linux kernel
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-------------------------------------------------------------
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If you use a kernel build-in version of ALSA, use:
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./configure --with-kernel=<version>
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make install
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The directory /lib/modules/<version>/build/include/sound must exists for
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this kind of configuration.
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You may also specify the full-base for ALSA kernel headers:
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./configure --with-soundbase=<path_to_linux_include_dir>
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make install
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example:
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./configure --with-soundbase=/usr/src/linux-2.5.5/include
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make install
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Compilation from CVS sources
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----------------------------
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@ -82,30 +51,16 @@ When you would like to cross-compile ALSA library (e.g. compile on
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i686 host but for arm architecture) you will need to call ./configure
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script with aditional parameters:
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CC=arm-linux-gcc ./configure --target=arm-linux \
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--with-soundbase=/usr/local/arm/src/linux/include
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CC=arm-linux-gcc ./configure --target=arm-linux
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In this example host where the library is build is guessed (should be
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given with --host=platform) and target for which is the library build is
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Linux on ARM architecture. You need to specify location of kernel includes
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configured for target architecture. This is used to find ALSA include
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files and so it should be set to prefix where '/sound' directory should
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be found. You should ommit setting 'CC' variable and cross-compiler will
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be guessed too. You could also use option '--prefix' to specify ALSA include
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directory directly if $prefix/include/sound exists.
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Linux on ARM architecture. You should ommit setting 'CC' variable and
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cross-compiler will be guessed too.
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So simplest version would be:
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./configure --target=arm-linux --with-soundbase=/usr/local/arm/include
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or
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./configure --target=arm-linux --prefix=/usr/local/arm
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As you will likely specify the prefix, the last posibbility would be
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the best if everything match. On the listing of 'configure' script
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check if directory with ALSA headers was found properly same as platform
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specific configurations like processor type and selected cross-compiler.
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./configure --target=arm-linux
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For platform names in the form cpu-vendor-os (or aliases for this)
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you should look in 'config.guess' script. Target and all paths
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25
acinclude.m4
25
acinclude.m4
@ -1,28 +1,3 @@
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dnl Check for ALSA driver package.
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AC_DEFUN(ALSA_CHECK_DRIVER, [
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AC_MSG_CHECKING(for alsa-driver package)
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AC_TRY_COMPILE([
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#include <sound/asound.h>
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],[
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void main(void)
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{
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#if !defined(SNDRV_PROTOCOL_VERSION) || !defined(SNDRV_PROTOCOL_INCOMPATIBLE)
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#error not found
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#else
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#if !defined(SNDRV_PCM_IOCTL_REWIND)
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#error wrong version
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#endif
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exit(0);
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#endif
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}
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],
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AC_MSG_RESULT(present),
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[AC_MSG_RESULT(not found or wrong version);
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AC_MSG_ERROR([Install alsa-driver v0.9.0 package first...])]
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)
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])
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AC_DEFUN(SAVE_LIBRARY_VERSION, [
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AC_MSG_CHECKING(for library version)
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SND_LIB_VERSION=$VERSION
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43
configure.in
43
configure.in
@ -39,51 +39,9 @@ AC_DISABLE_STATIC
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AC_LIBTOOL_DLOPEN
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AM_PROG_LIBTOOL
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dnl kernel header files
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AC_MSG_CHECKING(for kernel header files)
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AC_ARG_WITH(kernel,
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[ --with-kernel=ver specify kernel version (for example 2.5.5-pre1)],
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[kerneldir="$withval"], [kerneldir=""])
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if test "$kerneldir" != "" -a -r "/lib/modules/$kerneldir/build/include/sound"; then
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kerneldir="/lib/modules/$kerneldir/build/include"
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AC_MSG_RESULT($kerneldir)
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else
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if test -z "$kerneldir"; then
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AC_MSG_RESULT("not specified")
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else
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AC_MSG_RESULT("directory /lib/modules/$kerneldir/build/include/sound not found")
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fi
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kerneldir=""
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fi
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dnl path for sound/asound.h
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AC_MSG_CHECKING(for directory with ALSA kernel headers)
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AC_ARG_WITH(soundbase,
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[ --with-soundbase=dir specify base directory with kernel sound headers (optional)],
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[soundbasedir="$withval"], [soundbasedir="$kerneldir"])
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if test "$soundbasedir" != "" -a -r "$soundbasedir/sound" ; then
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ALSA_CFLAGS="$ALSA_CFLAGS -I$soundbasedir"
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CFLAGS="$CFLAGS -I$soundbasedir"
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AC_MSG_RESULT($ALSA_CFLAGS)
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else
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if test "x$prefix" != xNONE; then
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aprefix=$prefix
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else
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aprefix=$ac_default_prefix
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fi
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if test -z "$soundbasedir" -a x"$aprefix" != x/usr -a -r "$aprefix/include/sound"; then
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ALSA_CFLAGS="$ALSA_CFLAGS -I$aprefix/include"
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CFLAGS="$CFLAGS -I$aprefix/include"
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AC_MSG_RESULT($ALSA_CFLAGS)
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else
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AC_MSG_RESULT("not specified - using C compilator defaults")
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fi
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fi
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dnl Checks for header files.
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AC_HEADER_STDC
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AM_CONFIG_HEADER(include/config.h)
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AC_CHECK_HEADERS(sound/asound.h)
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dnl Checks for typedefs, structures, and compiler characteristics.
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@ -96,7 +54,6 @@ AC_PROG_GCC_TRADITIONAL
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AC_CHECK_FUNC([hsearch_r], [HAVE_HSEARCH_R=yes])
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AM_CONDITIONAL(ALSA_HSEARCH_R, [test "x$HAVE_HSEARCH_R" != xyes])
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ALSA_CHECK_DRIVER
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SAVE_LIBRARY_VERSION
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AC_SUBST(LIBTOOL_VERSION_INFO)
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