alsa-lib/configure.ac
Takashi Iwai 4759865c86 pcm: dmix: make lockless operation optional
The recently reported (but a long-standing) bug about the
unconditional semaphore usage in the dmix implies that basically we've
had no problem with the locking in the practical usages over years.
Although the lockless operation has a clear merit, it's a much higher
CPU usage (especially on some uncached pages), and it might lead to a
potential deadlock in theory (which is hard to reproduce at will,
though).

This patch introduces a new configure option "--enable-lockless-dmix"
or "--disable-lockless-dmix" to let user choose the default dmix
operation mode.  The usage of the lockless mixing has been already
conditionally enabled via asoundrc and card config
"direct_memory_access", so we just need to set the default value based
on it.

In this patch, the default is set off to the lockless mixing, i.e. the
generic mixing is chosen.  It makes more sense from the performance
POV.  For any users who still require the lockless operation, it can
be enabled either via configure option or the asoundrc.

The magic number used in the shmem is also changed depending on the
operation mode.  It's just for safety, not to conflict both operation
modes with each other.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-07-07 11:56:41 +02:00

790 lines
26 KiB
Text

dnl Process this file with autoconf to produce a configure script.
AC_PREREQ(2.59)
AC_INIT(alsa-lib, 1.2.3.2)
AC_CONFIG_SRCDIR([src/control/control.c])
AC_CONFIG_MACRO_DIR([m4])
dnl *************************************************
dnl current:revision:age
dnl change (without API) = c:r+1:a
dnl change API = c+1:0:a
dnl add API = c+1:0:a+1
dnl remove API = c+1:0:0
dnl *************************************************
AC_CANONICAL_HOST
AM_INIT_AUTOMAKE
eval LIBTOOL_VERSION_INFO="2:0:0"
dnl *************************************************
AM_CONDITIONAL([INSTALL_M4], [test -n "${ACLOCAL}"])
AM_MAINTAINER_MODE([enable])
# Test for new silent rules and enable only if they are available
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
AC_PREFIX_DEFAULT(/usr)
dnl Checks for programs.
AC_PROG_CC
AC_PROG_CPP
AC_USE_SYSTEM_EXTENSIONS
AC_PROG_INSTALL
AC_PROG_LN_S
AC_DISABLE_STATIC
AC_LIBTOOL_DLOPEN
AM_PROG_LIBTOOL
CC_NOUNDEFINED
dnl Checks for header files.
AC_HEADER_STDC
AC_CONFIG_HEADERS(include/config.h)
dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_C_INLINE
AC_HEADER_TIME
dnl Checks for library functions.
AC_PROG_GCC_TRADITIONAL
AC_CHECK_FUNCS([uselocale])
SAVE_LIBRARY_VERSION
AC_SUBST(LIBTOOL_VERSION_INFO)
test "x$prefix" = xNONE && prefix=$ac_default_prefix
dnl Do not build static and shared libraries together
if test "$enable_static" = "$enable_shared" -a "$enable_static" = "yes"; then
cat <<EOF
Please, do not try to compile static and shared libraries together.
See INSTALL file for more details (do not use --enable-shared=yes with
--enable-static=yes).
EOF
exit 1
fi
dnl ALSA configuration directory
AC_ARG_WITH(configdir,
AS_HELP_STRING([--with-configdir=dir],
[path where ALSA config files are stored]),
confdir="$withval", confdir="")
if test -z "$confdir"; then
eval dir="$datadir"
case "$dir" in
/*) ;;
*) dir="$prefix/share"
esac
confdir="$dir/alsa"
fi
ALSA_CONFIG_DIR="$confdir"
AC_DEFINE_UNQUOTED(ALSA_CONFIG_DIR, "$confdir", [directory containing ALSA configuration database])
AC_SUBST(ALSA_CONFIG_DIR)
dnl ALSA plugin directory
test "x$exec_prefix" = xNONE && exec_prefix=$prefix
AC_ARG_WITH(plugindir,
AS_HELP_STRING([--with-plugindir=dir],
[path where ALSA plugin files are stored]),
plugindir="$withval", plugindir="")
if test -z "$plugindir"; then
eval dir="$libdir"
case "$dir" in
/*) ;;
*) dir="$dir"
esac
plugindir="$dir/$PACKAGE"
fi
AC_DEFINE_UNQUOTED(ALSA_PLUGIN_DIR, "$plugindir", [directory containing ALSA add-on modules])
ALSA_PLUGIN_DIR="$plugindir"
AC_SUBST(ALSA_PLUGIN_DIR)
AC_ARG_WITH(pkgconfdir,
AS_HELP_STRING([--with-pkgconfdir=dir],
[path where pkgconfig files are stored]),
pkgconfdir="$withval", pkgconfdir="")
if test -z "$pkgconfdir"; then
eval dir="$libdir"
case "$dir" in
/*) ;;
*) dir="$dir"
esac
pkgconfdir="$dir/pkgconfig"
fi
AC_DEFINE_UNQUOTED(ALSA_PKGCONF_DIR, "$pkgconfdir", [directory containing pkgconfig files])
ALSA_PKGCONF_DIR="$pkgconfdir"
AC_SUBST(ALSA_PKGCONF_DIR)
dnl Check for versioned symbols
AC_MSG_CHECKING(for versioned symbols)
AC_ARG_WITH(versioned,
AS_HELP_STRING([--with-versioned],
[shared library will be compiled with versioned symbols (default = yes)]),
versioned="$withval", versioned="yes")
if test "$versioned" = "yes"; then
# it seems that GNU ld versions since 2.10 are not broken
xres=`grep '^VERSION=' ${srcdir}/ltmain.sh | cut -d = -f 2 | cut -d \" -f 2`
major=`echo $xres | cut -d . -f 1`
minor=`echo $xres | cut -d . -f 2`
pass=0
if test $major -eq 1 && test $minor -gt 3; then
pass=1
else
if test $major -gt 1; then
pass=1
fi
fi
if test $pass -eq 1; then
AC_DEFINE(VERSIONED_SYMBOLS,,[compiled with versioned symbols])
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(broken libtool - use libtool v1.4+; no versions)
fi
else
AC_MSG_RESULT(no)
fi
AM_CONDITIONAL([VERSIONED_SYMBOLS], [test x$versioned = xyes])
dnl Check for symbolic-functions
AC_MSG_CHECKING(for symbolic-functions)
AC_ARG_ENABLE(symbolic-functions,
AS_HELP_STRING([--enable-symbolic-functions],
[use -Bsymbolic-functions option if available (optmization for size and speed)]),
symfuncs="$enableval", symfuncs="no")
if test "$symfuncs" = "yes"; then
if ld --help | grep -q -- '-Bsymbolic-functions'; then
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(not supported by ld)
symfuncs="no"
fi
else
AC_MSG_RESULT(no)
fi
AM_CONDITIONAL([SYMBOLIC_FUNCTIONS], [test x"$symfuncs" = xyes])
dnl See if toolchain has a custom prefix for symbols ...
AC_MSG_CHECKING(for custom symbol prefixes)
SYMBOL_PREFIX=` \
echo "PREFIX=__USER_LABEL_PREFIX__" \
| ${CPP-${CC-gcc} -E} - 2>&1 \
| ${EGREP-grep} "^PREFIX=" \
| ${SED-sed} "s:^PREFIX=::"`
AC_DEFINE_UNQUOTED([__SYMBOL_PREFIX], "$SYMBOL_PREFIX", [Toolchain Symbol Prefix])
AC_SUBST(SYMBOL_PREFIX)
AC_MSG_RESULT($SYMBOL_PREFIX)
dnl Check for debug...
AC_MSG_CHECKING(for debug)
AC_ARG_WITH(debug,
AS_HELP_STRING([--with-debug],
[library will be compiled with asserts (default = yes)]),
debug="$withval", debug="yes")
if test "$debug" = "yes"; then
AC_MSG_RESULT(yes)
else
AC_DEFINE(NDEBUG,,[No assert debug])
AC_MSG_RESULT(no)
fi
if test "$debug" = "yes"; then
AC_MSG_CHECKING(for debug assert)
AC_ARG_ENABLE(debug-assert,
AS_HELP_STRING([--enable-debug],
[enable assert call at the default error message handler]),
debug_assert="$enableval", debug_assert="no")
if test "$debug_assert" = "yes"; then
AC_MSG_RESULT(yes)
AC_DEFINE(ALSA_DEBUG_ASSERT,,[Enable assert at error message handler])
else
AC_MSG_RESULT(no)
fi
fi
dnl Temporary directory
AC_MSG_CHECKING(for tmpdir)
AC_ARG_WITH(tmpdir,
AS_HELP_STRING([--with-tmpdir=directory],
[directory to put tmp socket files (/tmp)]),
tmpdir="$withval", tmpdir="/tmp")
AC_MSG_RESULT($tmpdir)
AC_DEFINE_UNQUOTED(TMPDIR, "$tmpdir", [directory to put tmp socket files])
dnl Check for softfloat...
AC_MSG_CHECKING(for softfloat)
AC_ARG_WITH(softfloat,
AS_HELP_STRING([--with-softfloat],
[do you have floating point unit on this machine? (optional)]),
[case "$withval" in
y|yes) softfloat=yes ;;
*) softfloat=no ;;
esac],)
if test "$softfloat" = "yes" ; then
AC_DEFINE(HAVE_SOFT_FLOAT, "1", [Avoid calculation in float])
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
ALSA_DEPLIBS=""
if test "$softfloat" != "yes"; then
ALSA_DEPLIBS="-lm"
fi
dnl Check for libdl
AC_MSG_CHECKING(for libdl)
AC_ARG_WITH(libdl,
AS_HELP_STRING([--with-libdl], [Use libdl for plugins (default = yes)]),
[ have_libdl="$withval" ], [ have_libdl="yes" ])
HAVE_LIBDL=
if test "$have_libdl" = "yes"; then
AC_CHECK_LIB([dl], [dlsym], [HAVE_LIBDL="yes"])
if test "$HAVE_LIBDL" = "yes" ; then
ALSA_DEPLIBS="$ALSA_DEPLIBS -ldl"
AC_DEFINE([HAVE_LIBDL], 1, [Have libdl])
fi
else
AC_MSG_RESULT(no)
fi
AM_CONDITIONAL([BUILD_MODULES], [test "$HAVE_LIBDL" = "yes"])
dnl Check for pthread
AC_MSG_CHECKING(for pthread)
AC_ARG_WITH(pthread,
AS_HELP_STRING([--with-pthread], [Use pthread (default = yes)]),
[ have_pthread="$withval" ], [ have_pthread="yes" ])
if test "$have_pthread" = "yes"; then
AC_CHECK_LIB([pthread], [pthread_join], [HAVE_LIBPTHREAD="yes"])
if test "$HAVE_LIBPTHREAD" = "yes"; then
ALSA_DEPLIBS="$ALSA_DEPLIBS -lpthread"
AC_DEFINE([HAVE_LIBPTHREAD], 1, [Have libpthread])
fi
else
AC_MSG_RESULT(no)
fi
dnl Check for pthread
if test "$HAVE_LIBPTHREAD" = "yes"; then
AC_CHECK_DECL(PTHREAD_MUTEX_RECURSIVE,
AC_DEFINE(HAVE_PTHREAD_MUTEX_RECURSIVE, [],
[Define if your pthreads implementation have PTHREAD_MUTEX_RECURSIVE]),
,
[#include <pthread.h>])
fi
dnl Check for __thread
AC_MSG_CHECKING([for __thread])
AC_LINK_IFELSE([AC_LANG_PROGRAM([#if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__)) && ((__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 1) || (__GNUC__ == 4 && __GNUC_MINOR__ == 1 && __GNUC_PATCHLEVEL__ < 2))
#error gcc has this bug: http://gcc.gnu.org/ml/gcc-bugs/2006-09/msg02275.html
#endif], [static __thread int p = 0])],
[AC_DEFINE(HAVE___THREAD, 1,
Define to 1 if compiler supports __thread)
AC_MSG_RESULT([yes])],
[AC_MSG_RESULT([no])])
dnl Check for librt
AC_MSG_CHECKING(for librt)
AC_ARG_WITH(librt,
AS_HELP_STRING([--with-librt], [Use librt for monotonic clock (default = yes)]),
[ have_librt="$withval" ], [ have_librt="yes" ])
if test "$have_librt" = "yes"; then
AC_CHECK_LIB([rt], [clock_gettime], [HAVE_LIBRT="yes"])
if test "$HAVE_LIBRT" = "yes" ; then
ALSA_DEPLIBS="$ALSA_DEPLIBS -lrt"
AC_DEFINE([HAVE_LIBRT], 1, [Have librt])
AC_DEFINE([HAVE_CLOCK_GETTIME], 1, [Have clock gettime])
fi
else
AC_MSG_RESULT(no)
fi
AC_SUBST(ALSA_DEPLIBS)
dnl Check for use of wordexp...
AC_MSG_CHECKING(for use of wordexp)
AC_ARG_WITH(wordexp,
AS_HELP_STRING([--with-wordexp],
[Use wordexp when expanding configs (default = no)]),
[case "$withval" in
y|yes) wordexp=yes ;;
*) wordexp=no ;;
esac],)
if test "$wordexp" = "yes" ; then
AC_DEFINE(HAVE_WORDEXP, "1", [Enable use of wordexp])
AC_MSG_RESULT(yes)
AC_CHECK_HEADER([wordexp.h],[], [AC_MSG_ERROR([Couldn't find wordexp.h])])
else
AC_MSG_RESULT(no)
fi
dnl Check for headers
AC_CHECK_HEADERS([endian.h sys/endian.h sys/shm.h])
dnl Check for resmgr support...
AC_MSG_CHECKING(for resmgr support)
AC_ARG_ENABLE(resmgr,
AS_HELP_STRING([--enable-resmgr], [support resmgr (optional)]),
resmgr="$enableval", resmgr="no")
AC_MSG_RESULT($resmgr)
if test "$resmgr" = "yes"; then
AC_CHECK_LIB(resmgr, rsm_open_device,,
AC_ERROR([Cannot find libresmgr]))
AC_DEFINE(SUPPORT_RESMGR, "1", [Support resmgr with alsa-lib])
fi
dnl Check for aload* support...
AC_MSG_CHECKING(for aload* support)
AC_ARG_ENABLE(aload,
AS_HELP_STRING([--disable-aload], [disable reading /dev/aload*]),
aload="$enableval", aload="yes")
AC_MSG_RESULT($aload)
if test "$aload" = "yes"; then
AC_DEFINE(SUPPORT_ALOAD, "1", [Support /dev/aload* access for auto-loading])
fi
dnl Check for non-standard /dev directory
AC_MSG_CHECKING([for ALSA device file directory])
AC_ARG_WITH(alsa-devdir,
AS_HELP_STRING([--with-alsa-devdir=dir],
[directory with ALSA device files (default /dev/snd)]),
[alsa_dev_dir="$withval"],
[alsa_dev_dir="/dev/snd"])
dnl make sure it has a trailing slash
if echo "$alsa_dev_dir" | grep -v '/$' > /dev/null; then
alsa_dev_dir="$alsa_dev_dir/"
fi
AC_DEFINE_UNQUOTED(ALSA_DEVICE_DIRECTORY, "$alsa_dev_dir", [Directory with ALSA device files])
AC_MSG_RESULT([$alsa_dev_dir])
AC_MSG_CHECKING([for aload* device file directory])
AC_ARG_WITH(aload-devdir,
AS_HELP_STRING([--with-aload-devdir=dir],
[directory with aload* device files (default /dev)]),
[aload_dev_dir="$withval"],
[aload_dev_dir="/dev"])
if echo "$aload_dev_dir" | grep -v '/$' > /dev/null; then
aload_dev_dir="$aload_dev_dir/"
fi
AC_DEFINE_UNQUOTED(ALOAD_DEVICE_DIRECTORY, "$aload_dev_dir", [Directory with aload* device files])
AC_MSG_RESULT([$aload_dev_dir])
dnl Build conditions
AC_ARG_ENABLE(mixer,
AS_HELP_STRING([--disable-mixer], [disable the mixer component]),
[build_mixer="$enableval"], [build_mixer="yes"])
AC_ARG_ENABLE(pcm,
AS_HELP_STRING([--disable-pcm], [disable the PCM component]),
[build_pcm="$enableval"], [build_pcm="yes"])
AC_ARG_ENABLE(rawmidi,
AS_HELP_STRING([--disable-rawmidi], [disable the raw MIDI component]),
[build_rawmidi="$enableval"], [build_rawmidi="yes"])
AC_ARG_ENABLE(hwdep,
AS_HELP_STRING([--disable-hwdep], [disable the hwdep component]),
[build_hwdep="$enableval"], [build_hwdep="yes"])
AC_ARG_ENABLE(seq,
AS_HELP_STRING([--disable-seq], [disable the sequencer component]),
[build_seq="$enableval"], [build_seq="yes"])
AC_ARG_ENABLE(ucm,
AS_HELP_STRING([--disable-ucm], [disable the use-case-manager component]),
[build_ucm="$enableval"], [build_ucm="yes"])
AC_ARG_ENABLE(topology,
AS_HELP_STRING([--disable-topology], [disable the DSP topology component]),
[build_topology="$enableval"], [build_topology="yes"])
AC_ARG_ENABLE(alisp,
AS_HELP_STRING([--enable-alisp], [enable the alisp component]),
[build_alisp="$enableval"], [build_alisp="no"])
test "$softfloat" = "yes" && build_alisp="no"
AC_ARG_ENABLE(old-symbols,
AS_HELP_STRING([--disable-old-symbols], [disable old obsoleted symbols]),
[keep_old_symbols="$enableval"], [keep_old_symbols="yes"])
AM_CONDITIONAL([KEEP_OLD_SYMBOLS], [test x$keep_old_symbols = xyes])
AC_ARG_ENABLE(mixer-modules,
AS_HELP_STRING([--enable-mixer-modules], [enable the additional mixer modules (experimental)]),
[build_mixer_modules="$enableval"], [build_mixer_modules="no"])
AC_ARG_ENABLE(mixer-pymods,
AS_HELP_STRING([--enable-mixer-pymods], [enable the mixer python modules (experimental)]),
[build_mixer_pymodules="$enableval"], [build_mixer_pymodules="no"])
AC_ARG_ENABLE(python,
AS_HELP_STRING([--disable-python], [disable the python components]),
[build_python="$enableval"], [build_python="yes"])
AC_ARG_ENABLE(python2,
AS_HELP_STRING([--enable-python2], [prefer python2]),
[build_python2="$enableval"], [build_python2="no"])
PYTHON_LIBS=""
PYTHON_INCLUDES=""
if test "$build_python" = "yes" -a "$build_mixer_pymodules" = "yes"; then
pythonlibs0=
pythoninc0=
if test "$build_python2" != "yes"; then
pythonlibs0=$(python3-config --libs --embed 2> /dev/null)
if test -z "$pythonlibs0"; then
pythonlibs0=$(python3-config --libs)
fi
pythoninc0=$(python3-config --includes)
fi
if test -z "$pythonlibs0"; then
pythonlibs0=$(python-config --libs)
pythoninc0=$(python-config --includes)
fi
AC_ARG_WITH(pythonlibs,
AS_HELP_STRING([--with-pythonlibs=ldflags],
[specify python libraries (-lpthread -lm -ldl -lpython2.4)]),
pythonlibs="$withval", pythonlibs=$pythonlibs0)
AC_ARG_WITH(pythonincludes,
AS_HELP_STRING([--with-pythonincludes=Cflags],
[specify python C header files (-I/usr/include/python)]),
pythonincludes="$withval", pythonincludes=$pythoninc0)
if test -z "$pythonlibs"; then
echo "Unable to determine python libraries! Probably python-config is not"
echo "available on this system. Please, use --with-pythonlibs and"
echo "--with-pythonincludes options. Python components are disabled in this build."
build_python="no"
else
PYTHON_LIBS="$pythonlibs"
PYTHON_INCLUDES="$pythonincludes"
fi
fi
if test "$build_python" != "yes"; then
build_mixer_pymodules=
fi
AC_SUBST(PYTHON_LIBS)
AC_SUBST(PYTHON_INCLUDES)
AM_CONDITIONAL([BUILD_MIXER], [test x$build_mixer = xyes])
AM_CONDITIONAL([BUILD_PCM], [test x$build_pcm = xyes])
AM_CONDITIONAL([BUILD_RAWMIDI], [test x$build_rawmidi = xyes])
AM_CONDITIONAL([BUILD_HWDEP], [test x$build_hwdep = xyes])
AM_CONDITIONAL([BUILD_SEQ], [test x$build_seq = xyes])
AM_CONDITIONAL([BUILD_UCM], [test x$build_ucm = xyes])
AM_CONDITIONAL([BUILD_TOPOLOGY], [test x$build_topology = xyes])
AM_CONDITIONAL([BUILD_ALISP], [test x$build_alisp = xyes])
AM_CONDITIONAL([BUILD_MIXER_MODULES], [test x$build_mixer_modules = xyes])
AM_CONDITIONAL([BUILD_MIXER_PYMODULES], [test x$build_mixer_pymodules = xyes])
if test "$build_mixer" = "yes"; then
AC_DEFINE([BUILD_MIXER], "1", [Build mixer component])
fi
if test "$build_pcm" = "yes"; then
AC_DEFINE([BUILD_PCM], "1", [Build PCM component])
fi
if test "$build_rawmidi" = "yes"; then
AC_DEFINE([BUILD_RAWMIDI], "1", [Build raw MIDI component])
fi
if test "$build_hwdep" = "yes"; then
AC_DEFINE([BUILD_HWDEP], "1", [Build hwdep component])
fi
if test "$build_seq" = "yes"; then
AC_DEFINE([BUILD_SEQ], "1", [Build sequencer component])
fi
if test "$build_ucm" = "yes"; then
AC_DEFINE([BUILD_UCM], "1", [Build UCM component])
fi
if test "$build_topology" = "yes"; then
AC_DEFINE([BUILD_TOPOLOGY], "1", [Build DSP Topology component])
fi
dnl PCM Plugins
if test "$build_pcm" = "yes"; then
AC_ARG_WITH(pcm-plugins,
AS_HELP_STRING([--with-pcm-plugins=<list>],
[build PCM plugins (default = all)]),
[pcm_plugins="$withval"], [pcm_plugins="all"])
else
pcm_plugins=""
fi
dnl check atomics for pcm_meter
AC_MSG_CHECKING([whether GCC supports builtin atomic intrinsics])
if test -z "$gcc_have_atomics"; then
gcc_have_atomics=no
AC_TRY_LINK([],
[int i;
__atomic_load_n(&i, __ATOMIC_SEQ_CST);
__atomic_add_fetch(&i, 0, __ATOMIC_SEQ_CST);
],
[gcc_have_atomics=yes],
[gcc_have_atomics=no])
fi
AC_MSG_RESULT($gcc_have_atomics)
dnl check mmx register for pcm_dmix_i386
AC_TRY_LINK([],
[__asm__ volatile ("" : : : "mm0");],
[AC_DEFINE([HAVE_MMX], "1", [MMX technology is enabled])],
[])
PCM_PLUGIN_LIST="copy linear route mulaw alaw adpcm rate plug multi shm file null empty share meter hooks lfloat ladspa dmix dshare dsnoop asym iec958 softvol extplug ioplug mmap_emul"
build_pcm_plugin="no"
for t in $PCM_PLUGIN_LIST; do
eval build_pcm_$t="no"
done
pcm_plugins=`echo $pcm_plugins | sed 's/,/ /g'`
for p in $pcm_plugins; do
for t in $PCM_PLUGIN_LIST; do
if test "$p" = "$t" -o "$p" = "all"; then
eval build_pcm_$t="yes"
build_pcm_plugin="yes"
fi
done
done
dnl special dependencies
if test "$build_pcm_plug" = "yes"; then
build_pcm_linear="yes"
build_pcm_copy="yes"
fi
if test "$build_pcm_ioplug" = "yes"; then
build_pcm_extplug="yes"
fi
if test "$HAVE_LIBDL" != "yes"; then
build_pcm_meter="no"
build_pcm_ladspa="no"
build_pcm_pcm_ioplug="no"
build_pcm_pcm_extplug="no"
fi
if test "$HAVE_LIBPTHREAD" != "yes"; then
build_pcm_share="no"
fi
if test "$softfloat" = "yes"; then
build_pcm_lfloat="no"
build_pcm_ladspa="no"
fi
if test "$gcc_have_atomics" != "yes"; then
build_pcm_meter="no"
fi
if test "$ac_cv_header_sys_shm_h" != "yes"; then
build_pcm_dmix="no"
build_pcm_dshare="no"
build_pcm_dsnoop="no"
build_pcm_shm="no"
fi
AM_CONDITIONAL([BUILD_PCM_PLUGIN], [test x$build_pcm_plugin = xyes])
AM_CONDITIONAL([BUILD_PCM_PLUGIN_COPY], [test x$build_pcm_copy = xyes])
AM_CONDITIONAL([BUILD_PCM_PLUGIN_LINEAR], [test x$build_pcm_linear = xyes])
AM_CONDITIONAL([BUILD_PCM_PLUGIN_ROUTE], [test x$build_pcm_route = xyes])
AM_CONDITIONAL([BUILD_PCM_PLUGIN_MULAW], [test x$build_pcm_mulaw = xyes])
AM_CONDITIONAL([BUILD_PCM_PLUGIN_ALAW], [test x$build_pcm_alaw = xyes])
AM_CONDITIONAL([BUILD_PCM_PLUGIN_ADPCM], [test x$build_pcm_adpcm = xyes])
AM_CONDITIONAL([BUILD_PCM_PLUGIN_RATE], [test x$build_pcm_rate = xyes])
AM_CONDITIONAL([BUILD_PCM_PLUGIN_PLUG], [test x$build_pcm_plug = xyes])
AM_CONDITIONAL([BUILD_PCM_PLUGIN_MULTI], [test x$build_pcm_multi = xyes])
AM_CONDITIONAL([BUILD_PCM_PLUGIN_SHM], [test x$build_pcm_shm = xyes])
AM_CONDITIONAL([BUILD_PCM_PLUGIN_FILE], [test x$build_pcm_file = xyes])
AM_CONDITIONAL([BUILD_PCM_PLUGIN_NULL], [test x$build_pcm_null = xyes])
AM_CONDITIONAL([BUILD_PCM_PLUGIN_EMPTY], [test x$build_pcm_empty = xyes])
AM_CONDITIONAL([BUILD_PCM_PLUGIN_SHARE], [test x$build_pcm_share = xyes])
AM_CONDITIONAL([BUILD_PCM_PLUGIN_METER], [test x$build_pcm_meter = xyes])
AM_CONDITIONAL([BUILD_PCM_PLUGIN_HOOKS], [test x$build_pcm_hooks = xyes])
AM_CONDITIONAL([BUILD_PCM_PLUGIN_LFLOAT], [test x$build_pcm_lfloat = xyes])
AM_CONDITIONAL([BUILD_PCM_PLUGIN_LADSPA], [test x$build_pcm_ladspa = xyes])
AM_CONDITIONAL([BUILD_PCM_PLUGIN_DMIX], [test x$build_pcm_dmix = xyes])
AM_CONDITIONAL([BUILD_PCM_PLUGIN_DSHARE], [test x$build_pcm_dshare = xyes])
AM_CONDITIONAL([BUILD_PCM_PLUGIN_DSNOOP], [test x$build_pcm_dsnoop = xyes])
AM_CONDITIONAL([BUILD_PCM_PLUGIN_ASYM], [test x$build_pcm_asym = xyes])
AM_CONDITIONAL([BUILD_PCM_PLUGIN_IEC958], [test x$build_pcm_iec958 = xyes])
AM_CONDITIONAL([BUILD_PCM_PLUGIN_SOFTVOL], [test x$build_pcm_softvol = xyes])
AM_CONDITIONAL([BUILD_PCM_PLUGIN_EXTPLUG], [test x$build_pcm_extplug = xyes])
AM_CONDITIONAL([BUILD_PCM_PLUGIN_IOPLUG], [test x$build_pcm_ioplug = xyes])
AM_CONDITIONAL([BUILD_PCM_PLUGIN_MMAP_EMUL], [test x$build_pcm_mmap_emul = xyes])
dnl Defines for plug plugin
if test "$build_pcm_rate" = "yes"; then
AC_DEFINE([BUILD_PCM_PLUGIN_RATE], "1", [Build PCM rate plugin])
fi
if test "$build_pcm_route" = "yes"; then
AC_DEFINE([BUILD_PCM_PLUGIN_ROUTE], "1", [Build PCM route plugin])
fi
if test "$build_pcm_lfloat" = "yes"; then
AC_DEFINE([BUILD_PCM_PLUGIN_LFLOAT], "1", [Build PCM lfloat plugin])
fi
if test "$build_pcm_adpcm" = "yes"; then
AC_DEFINE([BUILD_PCM_PLUGIN_ADPCM], "1", [Build PCM adpcm plugin])
fi
if test "$build_pcm_mulaw" = "yes"; then
AC_DEFINE([BUILD_PCM_PLUGIN_MULAW], "1", [Build PCM mulaw plugin])
fi
if test "$build_pcm_alaw" = "yes"; then
AC_DEFINE([BUILD_PCM_PLUGIN_ALAW], "1", [Build PCM alaw plugin])
fi
if test "$build_pcm_mmap_emul" = "yes"; then
AC_DEFINE([BUILD_PCM_PLUGIN_MMAP_EMUL], "1", [Build PCM mmap-emul plugin])
fi
if test "$build_pcm_dmix" = "yes"; then
AC_MSG_CHECKING(for default lockless dmix)
AC_ARG_ENABLE(lockless-dmix,
AS_HELP_STRING([--enable-lockless-dmix],
[use lockless dmix as default on x86]),
lockless_dmix="$enableval", lockless_dmix="no")
if test "$lockless_dmix" = "yes"; then
AC_MSG_RESULT(yes)
AC_DEFINE([LOCKLESS_DMIX_DEFAULT], "1", [Lockless dmix as default])
else
AC_MSG_RESULT(no)
fi
fi
dnl Create PCM plugin symbol list for static library
rm -f "$srcdir"/src/pcm/pcm_symbols_list.c
touch "$srcdir"/src/pcm/pcm_symbols_list.c
for t in $PCM_PLUGIN_LIST; do
if eval test \$build_pcm_$t = yes; then
echo \&_snd_module_pcm_$t, >> "$srcdir"/src/pcm/pcm_symbols_list.c
fi
done
dnl Control Plugins
AC_ARG_WITH(ctl-plugins,
AS_HELP_STRING([--with-ctl-plugins=<list>],
[build control plugins (default = all)]),
[ctl_plugins="$withval"], [ctl_plugins="all"])
CTL_PLUGIN_LIST="shm ext"
build_ctl_plugin="no"
for t in $CTL_PLUGIN_LIST; do
eval build_ctl_$t="no"
done
ctl_plugins=`echo $ctl_plugins | sed 's/,/ /g'`
for p in $ctl_plugins; do
for t in $CTL_PLUGIN_LIST; do
if test "$p" = "$t" -o "$p" = "all"; then
eval build_ctl_$t="yes"
build_ctl_plugin="yes"
fi
done
done
if test "$ac_cv_header_sys_shm_h" != "yes"; then
build_ctl_shm="no"
fi
AM_CONDITIONAL([BUILD_CTL_PLUGIN], [test x$build_ctl_plugin = xyes])
AM_CONDITIONAL([BUILD_CTL_PLUGIN_SHM], [test x$build_ctl_shm = xyes])
AM_CONDITIONAL([BUILD_CTL_PLUGIN_EXT], [test x$build_ctl_ext = xyes])
dnl Create ctl plugin symbol list for static library
rm -f "$srcdir"/src/control/ctl_symbols_list.c
touch "$srcdir"/src/control/ctl_symbols_list.c
for t in $CTL_PLUGIN_LIST; do
if eval test \$build_ctl_$t = yes; then
echo \&_snd_module_control_$t, >> "$srcdir"/src/control/ctl_symbols_list.c
fi
done
dnl Max number of cards
AC_MSG_CHECKING(for max number of cards)
AC_ARG_WITH(max-cards,
AS_HELP_STRING([--with-max-cards], [Specify the max number of cards (default = 32)]),
[ max_cards="$withval" ], [ max_cards="32" ])
AC_MSG_RESULT([$max_cards])
if test "$max_cards" -lt 1; then
AC_ERROR([Invalid max cards $max_cards])
elif test "$max_cards" -gt 256; then
AC_ERROR([Invalid max cards $max_cards])
fi
AC_DEFINE_UNQUOTED(SND_MAX_CARDS, $max_cards, [Max number of cards])
dnl Check for thread-safe API functions
if test "$HAVE_LIBPTHREAD" = "yes"; then
AC_MSG_CHECKING(for thread-safe API functions)
AC_ARG_ENABLE(thread-safety,
AS_HELP_STRING([--disable-thread-safety],
[disable thread-safe API functions]),
threadsafe="$enableval", threadsafe="yes")
if test "$threadsafe" = "yes"; then
AC_MSG_RESULT(yes)
AC_DEFINE([THREAD_SAFE_API], "1", [Disable thread-safe API functions])
else
AC_MSG_RESULT(no)
fi
fi
dnl Make a symlink for inclusion of alsa/xxx.h
if test ! -L "$srcdir"/include/alsa ; then
echo "Making a symlink include/alsa"
rm -f "$srcdir"/include/alsa
ln -sf . "$srcdir"/include/alsa
fi
AC_OUTPUT(Makefile doc/Makefile doc/pictures/Makefile doc/doxygen.cfg \
include/Makefile include/sound/Makefile include/sound/uapi/Makefile \
src/Versions src/Makefile \
src/control/Makefile src/mixer/Makefile \
src/pcm/Makefile src/pcm/scopes/Makefile \
src/rawmidi/Makefile src/timer/Makefile \
src/hwdep/Makefile src/seq/Makefile src/ucm/Makefile \
src/alisp/Makefile src/topology/Makefile \
src/conf/Makefile \
src/conf/cards/Makefile \
src/conf/pcm/Makefile \
modules/Makefile modules/mixer/Makefile modules/mixer/simple/Makefile \
alsalisp/Makefile aserver/Makefile \
test/Makefile test/lsb/Makefile \
utils/Makefile utils/alsa-lib.spec utils/alsa.pc utils/alsa-topology.pc)
dnl Create asoundlib.h dynamically according to configure options
echo "Creating asoundlib.h..."
cp "$srcdir"/include/asoundlib-head.h include/asoundlib.h
test "$ac_cv_header_endian_h" = "yes" && echo "#include <endian.h>" >> include/asoundlib.h
if test "$ac_cv_header_sys_endian_h" = "yes"; then
cat >> include/asoundlib.h <<EOF
#include <sys/endian.h>
#ifndef __BYTE_ORDER
#define __BYTE_ORDER BYTE_ORDER
#endif
#ifndef __LITTLE_ENDIAN
#define __LITTLE_ENDIAN LITTLE_ENDIAN
#endif
#ifndef __BIG_ENDIAN
#define __BIG_ENDIAN BIG_ENDIAN
#endif
EOF
fi
cat >> include/asoundlib.h <<EOF
#ifndef __GNUC__
#define __inline__ inline
#endif
#include <alsa/asoundef.h>
#include <alsa/version.h>
#include <alsa/global.h>
#include <alsa/input.h>
#include <alsa/output.h>
#include <alsa/error.h>
#include <alsa/conf.h>
EOF
test "$build_pcm" = "yes" && echo "#include <alsa/pcm.h>" >> include/asoundlib.h
test "$build_rawmidi" = "yes" && echo "#include <alsa/rawmidi.h>" >> include/asoundlib.h
test "$build_pcm" = "yes" && echo "#include <alsa/timer.h>" >> include/asoundlib.h
test "$build_hwdep" = "yes" && echo "#include <alsa/hwdep.h>" >> include/asoundlib.h
echo "#include <alsa/control.h>" >> include/asoundlib.h
test "$build_mixer" = "yes" && echo "#include <alsa/mixer.h>" >> include/asoundlib.h
test "$build_seq" = "yes" && echo "#include <alsa/seq_event.h>" >> include/asoundlib.h
test "$build_seq" = "yes" && echo "#include <alsa/seq.h>" >> include/asoundlib.h
test "$build_seq" = "yes" && echo "#include <alsa/seqmid.h>" >> include/asoundlib.h
test "$build_seq" = "yes" && echo "#include <alsa/seq_midi_event.h>" >> include/asoundlib.h
cat "$srcdir"/include/asoundlib-tail.h >> include/asoundlib.h