alsa-utils/configure.in
Lennart Poettering de7c3eff0e alsactl: systemd and udev hookup
Add minimal systemd and udev support to alsactl so that mixer settings
are restored at boot, when sound cards are plugged in and saved on
shutdown.

This is similar to existing udev/init script solutions in various
distributions.

Note that alsactl is called both synchronously from the udev rules as
well as asynchronously at boot. This is intended, and to ensure two
things:

- At boot the asound.state file might not be readable, since it resides
  on a different file system. That means exclusively restoring sound card
  settings from udev rules will no suffice, since if the rule is
  executed at early boot (for example within udev settle) then the file
  will no be readable and cannot be restored.

- We need to ensure that applications monitoring sound cards coming and
  going (such as PA) must not get these events before the mixer settings
  have been restored. That means the mixer settings must be restored
  synchronously withing the udev rules, before the events are passed on
  to the apps.

That basically means we need to restore the settings once in udev, to
deal with sound cards becoming available during runtime. And once in
early boot to deal with coldplugged soundcards whose data files might
not have been available at time of plugging. Hence we call alsactl
twice: one from the udev rule, and once from he systemd unit file.

Signed-off-by: Lennart Poettering <mznyfn@0pointer.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2010-11-23 10:42:35 +01:00

301 lines
9.9 KiB
Text

dnl Process this file with autoconf to produce a configure script.
AC_PREREQ(2.59)
AC_INIT(aplay/aplay.c)
AC_PREFIX_DEFAULT(/usr)
AM_INIT_AUTOMAKE(alsa-utils, 1.0.23)
AM_GNU_GETTEXT([external])
AM_GNU_GETTEXT_VERSION([0.15])
dnl Checks for programs.
dnl try to gues cross-compiler if not set
if test "x$target" != "x$host" -a -z "`echo $CC | grep -e '-gcc'`";
then
AC_MSG_CHECKING(for cross-compiler)
which ${program_prefix}gcc >/dev/null 2>&1 && CC=${program_prefix}gcc
which ${target_cpu}-${target_os}-gcc >/dev/null 2>&1 \
&& CC=${target_cpu}-${target-os}-gcc
which ${target_cpu}-${target_vendor}-${target_os}-gcc >/dev/null 2>&1 \
&& CC=${target_cpu}-${target_vendor}-${target_os}-gcc
AC_MSG_RESULT($CC)
fi
AC_PROG_CC
dnl AC_PROG_CXX
AC_PROG_INSTALL
AC_PROG_MKDIR_P
AC_PROG_LN_S
AM_PATH_ALSA(1.0.16)
dnl Check components
AC_CHECK_HEADERS([alsa/pcm.h], [have_pcm="yes"], [have_pcm="no"],
[#include <alsa/asoundlib.h>])
AC_CHECK_HEADERS([alsa/mixer.h], [have_mixer="yes"], [have_mixer="no"],
[#include <alsa/asoundlib.h>])
AC_CHECK_HEADERS([alsa/rawmidi.h], [have_rawmidi="yes"], [have_rawmidi="no"],
[#include <alsa/asoundlib.h>])
AC_CHECK_HEADERS([alsa/seq.h], [have_seq="yes"], [have_seq="no"],
[#include <alsa/asoundlib.h>])
AC_CHECK_HEADERS([samplerate.h], [have_samplerate="yes"], [have_samplerate="no"],
[#include <samplerate.h>])
AM_CONDITIONAL(HAVE_PCM, test "$have_pcm" = "yes")
AM_CONDITIONAL(HAVE_MIXER, test "$have_mixer" = "yes")
AM_CONDITIONAL(HAVE_RAWMIDI, test "$have_rawmidi" = "yes")
AM_CONDITIONAL(HAVE_SEQ, test "$have_seq" = "yes")
AM_CONDITIONAL(HAVE_SAMPLERATE, test "$have_samplerate" = "yes")
dnl Check for librt
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 "$HAVE_LIBRT" = "yes" ; then
LIBRT="-lrt"
AC_DEFINE([HAVE_LIBRT], 1, [Have librt])
AC_DEFINE([HAVE_CLOCK_GETTIME], 1, [Have clock gettime])
fi
else
AC_MSG_RESULT(no)
fi
dnl Disable alsamixer
CURSESINC=""
CURSESLIB=""
CURSES_CFLAGS=""
alsamixer=
if test "$have_mixer" = "yes"; then
AC_ARG_ENABLE(alsamixer,
[ --disable-alsamixer Disable alsamixer compilation],
[case "${enableval}" in
yes) alsamixer=true ;;
no) alsamixer=false ;;
*) AC_MSG_ERROR(bad value ${enableval} for --enable-alsamixer) ;;
esac],[alsamixer=true])
fi
AM_CONDITIONAL(ALSAMIXER, test x$alsamixer = xtrue)
dnl Disable alsaconf
AC_ARG_ENABLE(alsaconf,
[ --disable-alsaconf Disable alsaconf packaging],
[case "${enableval}" in
yes) alsaconf=true ;;
no) alsaconf=false ;;
*) AC_MSG_ERROR(bad value ${enableval} for --enable-alsaconf) ;;
esac],[alsaconf=true])
AM_CONDITIONAL(ALSACONF, test x$alsaconf = xtrue)
dnl Disable alsaloop
AC_ARG_ENABLE(alsaloop,
[ --disable-alsaloop Disable alsaloop packaging],
[case "${enableval}" in
yes) alsaloop=true ;;
no) alsaloop=false ;;
*) AC_MSG_ERROR(bad value ${enableval} for --enable-alsaloop) ;;
esac],[alsaloop=true])
AM_CONDITIONAL(ALSALOOP, test x$alsaloop = xtrue)
xmlto=""
if test x"$alsaconf" = xtrue; then
AC_ARG_ENABLE(xmlto,
AS_HELP_STRING([--disable-xmlto], [Disable man page creation via xmlto]),
xmlto="$enableval", xmlto="yes")
if test "$xmlto" = "yes"; then
AC_CHECK_PROG([xmlto], [xmlto], [yes])
fi
fi
AM_CONDITIONAL(USE_XMLTO, test x"$xmlto" = xyes)
dnl Checks for header files.
AC_HEADER_STDC
if test x$alsamixer = xtrue; then
AC_ARG_WITH(curses,
[ --with-curses libname Specify the curses library to use (default=auto)],
curseslib="$withval",
curseslib="auto")
CURSESLIBDIR=""
NCURSESLIBSUFFIX=""
CURSES_NLS="no"
if test "$curseslib" = "ncursesw" -o \( "$curseslib" = "auto" -a "$USE_NLS" = "yes" \); then
AC_CHECK_PROG([ncursesw5_config], [ncursesw5-config], [yes])
if test "$ncursesw5_config" = "yes"; then
CURSESINC="<ncurses.h>"
CURSESLIB=`ncursesw5-config --libs`
CURSESLIBDIR=`ncursesw5-config --libdir`
CURSES_CFLAGS=`ncursesw5-config --cflags`
curseslib="ncursesw"
else
AC_CHECK_LIB(ncursesw, initscr,
[ CURSESINC='<ncurses.h>'; CURSESLIB='-lncursesw'; curseslib="ncursesw"])
fi
if test -n "$CURSESINC"; then
NCURSESLIBSUFFIX="w"
CURSES_NLS="yes"
fi
fi
if test "$curseslib" = "ncurses" -o "$curseslib" = "auto"; then
AC_CHECK_PROG([ncurses5_config], [ncurses5-config], [yes])
if test "$ncurses5_config" = "yes"; then
CURSESINC="<ncurses.h>"
CURSESLIB=`ncurses5-config --libs`
CURSESLIBDIR=`ncurses5-config --libdir`
CURSES_CFLAGS=`ncurses5-config --cflags`
curseslib="ncurses"
else
AC_CHECK_LIB(ncurses, initscr,
[ CURSESINC='<ncurses.h>'; CURSESLIB='-lncurses'; curseslib="ncurses"])
fi
fi
if test "$curseslib" = "curses" -o "$curseslib" = "auto"; then
AC_CHECK_LIB(curses, initscr,
[ CURSESINC='<curses.h>'; CURSESLIB='-lcurses'; curseslib="curses"])
fi
if test -z "$CURSESINC"; then
AC_MSG_ERROR(this packages requires a curses library)
fi
AC_MSG_CHECKING([for curses library])
AC_MSG_RESULT([$curseslib])
AC_MSG_CHECKING([for curses header name])
AC_MSG_RESULT([$CURSESINC])
AC_MSG_CHECKING([for curses compiler flags])
AC_MSG_RESULT([$CURSES_CFLAGS])
dnl CURSESLIBS might have the library path at the beginning. If so, we cut it
dnl off so that we can insert the other curses libraries before the ncurses
dnl library but after the library path (which is later again prepended below).
if test -n "$CURSESLIBDIR"; then
if test "-L$CURSESLIBDIR " = "$(echo $CURSESLIB | cut -c-$((${#CURSESLIBDIR}+3)) )"; then
CURSESLIB="$(echo $CURSESLIB | cut -c$((${#CURSESLIBDIR}+4))-)"
fi
fi
saved_CFLAGS="$CFLAGS"
saved_LDFLAGS="$LDFLAGS"
saved_LIBS="$LIBS"
CFLAGS="$CFLAGS $CURSES_CFLAGS"
if test -n "$CURSESLIBDIR"; then
LDFLAGS="$LDFLAGS -L$CURSESLIBDIR"
fi
LIBS="$CURSESLIB $LIBS"
AC_TRY_LINK([#include <panel.h>], [set_escdelay(100);],[HAVE_CURSES_ESCDELAY="yes"])
if test "$HAVE_CURSES_ESCDELAY" = "yes"; then
AC_DEFINE([HAVE_CURSES_ESCDELAY], 1, [Have curses set_escdelay])
fi
if test "$USE_NLS" = "yes"; then
AC_MSG_CHECKING([for curses NLS support])
dnl In theory, a single-byte curses works just fine in ISO 8859-* locales.
dnl In practice, however, everybody uses UTF-8 nowadays, so we'd better
dnl check for wide-character support.
dnl For ncurses/ncursesw, CURSES_NLS was already set above.
if test "$curseslib" = "curses"; then
AC_TRY_LINK([
#define _XOPEN_SOURCE 1
#define _XOPEN_SOURCE_EXTENDED 1
#include <curses.h>
], [
cchar_t wc;
setcchar(&wc, L"x", A_NORMAL, 0, 0);
],
[CURSES_NLS="yes"])
fi
AC_MSG_RESULT([$CURSES_NLS])
if test "$CURSES_NLS" = "yes"; then
AC_DEFINE([ENABLE_NLS_IN_CURSES], [1],
[Define if curses-based programs can show translated messages.])
fi
fi
AC_CHECK_HEADERS([panel.h menu.h form.h], [],
[AC_MSG_ERROR([required curses helper header not found])])
AC_CHECK_LIB([panel$NCURSESLIBSUFFIX], [new_panel],
[CURSESLIB="-lpanel$NCURSESLIBSUFFIX $CURSESLIB"],
[AC_MSG_ERROR([panel$NCURSESLIBSUFFIX library not found])])
AC_CHECK_LIB([menu$NCURSESLIBSUFFIX], [new_menu],
[CURSESLIB="-lmenu$NCURSESLIBSUFFIX $CURSESLIB"],
[AC_MSG_ERROR([menu$NCURSESLIBSUFFIX library not found])])
AC_CHECK_LIB([form$NCURSESLIBSUFFIX], [new_form],
[CURSESLIB="-lform$NCURSESLIBSUFFIX $CURSESLIB"],
[AC_MSG_ERROR([form$NCURSESLIBSUFFIX library not found])])
CFLAGS="$saved_CFLAGS"
LDFLAGS="$saved_LDFLAGS"
LIBS="$saved_LIBS"
if test -n "$CURSESLIBDIR"; then
CURSESLIB="-L$CURSESLIBDIR $CURSESLIB"
fi
AC_MSG_CHECKING([for curses linker flags])
AC_MSG_RESULT([$CURSESLIB])
fi
AC_SUBST(CURSESINC)
AC_SUBST(CURSESLIB)
AC_SUBST(CURSES_CFLAGS)
test "x$prefix" = xNONE && prefix=$ac_default_prefix
eval dir="$datadir"
case "$dir" in
/*) ;;
*) dir="$prefix/share"
esac
soundsdir="$dir/sounds/alsa"
AC_DEFINE_UNQUOTED(SOUNDSDIR, "$soundsdir", [directory containing sample data])
mydatadir="$dir/alsa"
AC_DEFINE_UNQUOTED(DATADIR, "$mydatadir", [directory containing alsa configuration])
AC_ARG_WITH(testsound,
[ --with-testsound=file give the path of test sound file for alsaconf],
TESTSOUND="$withval",
TESTSOUND="$dir/test.wav")
AC_SUBST(TESTSOUND)
AM_CONFIG_HEADER(include/aconfig.h)
dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_C_INLINE
AC_HEADER_TIME
dnl Checks for library functions.
AC_PROG_GCC_TRADITIONAL
dnl Enable largefile support
AC_SYS_LARGEFILE
SAVE_UTIL_VERSION
AC_SUBST(LIBRT)
dnl Check for systemd
PKG_PROG_PKG_CONFIG
AC_ARG_WITH([systemdsystemunitdir],
AS_HELP_STRING([--with-systemdsystemunitdir=DIR], [Directory for systemd service files]),
[], [with_systemdsystemunitdir=$($PKG_CONFIG --variable=systemdsystemunitdir systemd)])
if test "x$with_systemdsystemunitdir" != xno; then
AC_SUBST([systemdsystemunitdir], [$with_systemdsystemunitdir])
fi
AM_CONDITIONAL(HAVE_SYSTEMD, [test -n "$with_systemdsystemunitdir" -a "x$with_systemdsystemunitdir" != xno ])
AC_OUTPUT(Makefile alsactl/Makefile alsactl/init/Makefile \
alsamixer/Makefile amidi/Makefile amixer/Makefile \
m4/Makefile po/Makefile.in \
alsaconf/alsaconf alsaconf/Makefile \
alsaconf/po/Makefile \
aplay/Makefile include/Makefile iecset/Makefile utils/Makefile \
utils/alsa-utils.spec seq/Makefile seq/aconnect/Makefile \
seq/aplaymidi/Makefile seq/aseqdump/Makefile seq/aseqnet/Makefile \
speaker-test/Makefile speaker-test/samples/Makefile \
alsaloop/Makefile)