AC_PREREQ(2.60) dnl please read gstreamer/docs/random/autotools before changing this file dnl initialize autoconf dnl releases only do -Wall, git and prerelease does -Werror too dnl use a three digit version number for releases, and four for git/prerelease AC_INIT(GStreamer Base Plug-ins, 0.10.35.1, http://bugzilla.gnome.org/enter_bug.cgi?product=GStreamer, gst-plugins-base) AG_GST_INIT dnl initialize automake AM_INIT_AUTOMAKE([-Wno-portability 1.10]) dnl define PACKAGE_VERSION_* variables AS_VERSION dnl check if this is a release version AS_NANO(GST_GIT="no", GST_GIT="yes") dnl can autoconf find the source ? AC_CONFIG_SRCDIR([gst/audiotestsrc/gstaudiotestsrc.c]) dnl define the output header for config AM_CONFIG_HEADER([config.h]) dnl AM_MAINTAINER_MODE only provides the option to configure to enable it AM_MAINTAINER_MODE dnl sets host_* variables AC_CANONICAL_HOST dnl use pretty build output with automake >= 1.11 m4_ifdef([AM_SILENT_RULES],[AM_SILENT_RULES([yes])], [AM_DEFAULT_VERBOSITY=1 AC_SUBST(AM_DEFAULT_VERBOSITY)]) dnl our libraries and install dirs use major.minor as a version GST_MAJORMINOR=$PACKAGE_VERSION_MAJOR.$PACKAGE_VERSION_MINOR dnl we override it here if we need to for the release candidate of new series GST_MAJORMINOR=0.10 AC_SUBST(GST_MAJORMINOR) dnl CURRENT, REVISION, AGE dnl - library source changed -> increment REVISION dnl - interfaces added/removed/changed -> increment CURRENT, REVISION = 0 dnl - interfaces added -> increment AGE dnl - interfaces removed -> AGE = 0 dnl sets GST_LT_LDFLAGS AS_LIBTOOL(GST, 24, 0, 24) dnl FIXME: this macro doesn't actually work; dnl the generated libtool script has no support for the listed tags. dnl So this needs to be fixed first if we want to use this dnl AS_LIBTOOL_TAGS AC_LIBTOOL_WIN32_DLL AM_PROG_LIBTOOL dnl *** required versions of GStreamer stuff *** GST_REQ=0.10.35.1 dnl *** autotools stuff **** dnl allow for different autotools AS_AUTOTOOLS_ALTERNATE dnl Add parameters for aclocal AC_SUBST(ACLOCAL_AMFLAGS, "-I m4 -I common/m4") dnl set up gettext dnl the version check needs to stay here because autopoint greps for it AM_GNU_GETTEXT_VERSION([0.17]) AM_GNU_GETTEXT([external]) AG_GST_GETTEXT([gst-plugins-base-$GST_MAJORMINOR]) dnl *** check for arguments to configure *** AG_GST_ARG_DEBUG AG_GST_ARG_PROFILING AG_GST_ARG_VALGRIND AG_GST_ARG_GCOV AG_GST_ARG_EXAMPLES AG_GST_ARG_WITH_PKG_CONFIG_PATH AG_GST_ARG_WITH_PACKAGE_NAME AG_GST_ARG_WITH_PACKAGE_ORIGIN AG_GST_PKG_CONFIG_PATH dnl let distro override plugin install helper path AC_ARG_WITH(install-plugins-helper, AC_HELP_STRING([--with-install-plugins-helper], [specify path of helper script to call to install plugins]), [ case "${withval}" in yes) AC_MSG_ERROR(bad value ${withval} for --with-install-plugins-helper) ;; no) AC_MSG_ERROR(bad value ${withval} for --with-install-plugins-helper) ;; *) GST_INSTALL_PLUGINS_HELPER="${withval}" ;; esac ], [ dnl Default value AS_AC_EXPAND(GST_INSTALL_PLUGINS_HELPER,${libexecdir}/gst-install-plugins-helper) ] ) AC_MSG_NOTICE(Using $GST_INSTALL_PLUGINS_HELPER as plugin install helper) AC_DEFINE_UNQUOTED(GST_INSTALL_PLUGINS_HELPER, "$GST_INSTALL_PLUGINS_HELPER", [plugin install helper script]) AC_SUBST(GST_INSTALL_PLUGINS_HELPER) AG_GST_ARG_WITH_PLUGINS AG_GST_ARG_ENABLE_EXTERNAL AG_GST_ARG_ENABLE_EXPERIMENTAL dnl *** checks for platform *** dnl * hardware/architecture * dnl common/m4/gst-arch.m4 dnl check CPU type AG_GST_ARCH dnl check for large file support dnl affected plugins must include config.h AC_SYS_LARGEFILE dnl *** checks for programs *** dnl find a compiler AC_PROG_CC AC_PROG_CC_STDC dnl check if the compiler supports '-c' and '-o' options AM_PROG_CC_C_O dnl determine if c++ is available on this system AC_PROG_CXX dnl CXX may be set to some default even if no c++ compiler is available dnl (thanks autotools!), so just try to compile some c++ code to make sure AC_LANG_PUSH([C++]) AC_TRY_COMPILE([ class Foo { int bar; };], , working_cxx=yes, working_cxx=no) AC_LANG_POP([C++]) AC_MSG_NOTICE([working c++ compiler found: $working_cxx]) AM_CONDITIONAL(HAVE_CXX, test "x$working_cxx" = "xyes") AC_PATH_PROG(VALGRIND_PATH, valgrind, no) AM_CONDITIONAL(HAVE_VALGRIND, test ! "x$VALGRIND_PATH" = "xno") dnl check for gobject-introspection GOBJECT_INTROSPECTION_CHECK([0.9.12]) dnl check for documentation tools GTK_DOC_CHECK([1.3]) AS_PATH_PYTHON([2.1]) AG_GST_PLUGIN_DOCS([1.3],[2.1]) dnl *** checks for libraries *** dnl libm, for sin() etc. AC_CHECK_LIBM AC_SUBST(LIBM) dnl *** checks for header files *** dnl check if we have ANSI C header files AC_HEADER_STDC dnl used in gst/ffmpegcolorspace/mem.c dnl FIXME: could be fixed by redefining av_malloc and av_free to GLib's AC_CHECK_HEADERS([malloc.h]) ac_cppflags_save="$CPPFLAGS" CPPFLAGS="`$PKG_CONFIG --cflags libxml-2.0`" AC_COMPILE_IFELSE( AC_LANG_PROGRAM([ #include ],[ #ifndef LIBXML_HTML_ENABLED #error libxml2 has no HTML support #endif /* LIBXML_HTML_ENABLED */ ]), HAVE_LIBXML_HTML="yes", HAVE_LIBXML_HTML="no") CPPFLAGS="$ac_cppflags_save" AM_CONDITIONAL(HAVE_LIBXML_HTML, test "x$HAVE_LIBXML_HTML" = "xyes") dnl used in gst/tcp AC_CHECK_HEADERS([sys/socket.h], HAVE_SYS_SOCKET_H="yes", HAVE_SYS_SOCKET_H="no") AM_CONDITIONAL(HAVE_SYS_SOCKET_H, test "x$HAVE_SYS_SOCKET_H" = "xyes") dnl used in gst-libs/gst/rtsp AC_CHECK_HEADERS([winsock2.h], HAVE_WINSOCK2_H=yes) if test "x$HAVE_WINSOCK2_H" = "xyes"; then WIN32_LIBS="-lws2_32" AC_SUBST(WIN32_LIBS) fi dnl check for hstrerror, for gst-libs/gst/rtsp save_libs="$LIBS" AC_CHECK_FUNC(hstrerror, , AC_CHECK_LIB(resolv, hstrerror, , [AC_DEFINE(NO_HSTRERROR, 1, [Define if you have no native hstrerror() function.])])) HSTRERROR_LIBS=$LIBS AC_SUBST(HSTRERROR_LIBS) LIBS="$save_libs" dnl used in gst-libs/gst/pbutils and associated unit test AC_CHECK_HEADERS([process.h sys/types.h sys/wait.h sys/stat.h]) AC_CHECK_HEADERS([xmmintrin.h emmintrin.h]) dnl ffmpegcolorspace includes _stdint.h dnl also, Windows does not have long long AX_CREATE_STDINT_H dnl *** checks for functions *** AC_CHECK_FUNCS([localtime_r gmtime_r]) dnl *** checks for math functions *** LIBS_SAVE=$LIBS LIBS="$LIBS $LIBM" AC_CHECK_FUNCS(log2) LIBS=$LIBS_SAVE dnl *** checks for types/defines *** dnl Check for FIONREAD ioctl declaration dnl used in gst/tcp GST_CHECK_FIONREAD dnl *** checks for structures *** dnl *** checks for compiler characteristics *** dnl *** checks for library functions *** dnl check for fseeko() AC_FUNC_FSEEKO dnl Check for fast float to int casting as defined in C99 dnl used in gst-libs/gst/floatcast/floatcast.h save_libs=$LIBS LIBS="$LIBS $LIBM" AC_C99_FUNC_LRINT AC_C99_FUNC_LRINTF LIBS=$save_libs dnl Check for a way to display the function name in debug output AG_GST_CHECK_FUNCTION dnl *** checks for socket and nsl libraries *** AC_CHECK_FUNC(socket,,[AC_CHECK_LIB(socket,socket)]) AC_CHECK_FUNC(gethostbyname,,[AC_CHECK_LIB(nsl,gethostbyname)]) dnl *** checks for dependency libraries *** dnl GLib is required AG_GST_GLIB_CHECK([2.24]) ORC_CHECK([0.4.11]) dnl checks for gstreamer dnl uninstalled is selected preferentially -- see pkg-config(1) AG_GST_CHECK_GST($GST_MAJORMINOR, [$GST_REQ], yes) AG_GST_CHECK_GST_BASE($GST_MAJORMINOR, [$GST_REQ], yes) AG_GST_CHECK_GST_GDP($GST_MAJORMINOR, [$GST_REQ], yes) AG_GST_CHECK_GST_CONTROLLER($GST_MAJORMINOR, [$GST_REQ], yes) AG_GST_CHECK_GST_CHECK($GST_MAJORMINOR, [$GST_REQ], no) AM_CONDITIONAL(HAVE_GST_CHECK, test "x$HAVE_GST_CHECK" = "xyes") dnl Check for documentation xrefs GLIB_PREFIX="`$PKG_CONFIG --variable=prefix glib-2.0`" GST_PREFIX="`$PKG_CONFIG --variable=prefix gstreamer-$GST_MAJORMINOR`" AC_SUBST(GLIB_PREFIX) AC_SUBST(GST_PREFIX) dnl GTK is optional and only used in examples HAVE_GTK=no HAVE_GTK_X11=no GTK_REQ=3.0.0 if test "x$BUILD_EXAMPLES" = "xyes"; then PKG_CHECK_MODULES(GTK, gtk+-3.0 >= $GTK_REQ, HAVE_GTK=yes, HAVE_GTK=no) dnl some examples need gtk+-x11 PKG_CHECK_MODULES(GTK_X11, gtk+-x11-3.0 >= $GTK_REQ, HAVE_GTK_X11=yes, HAVE_GTK_X11=no) AC_SUBST(GTK_LIBS) AC_SUBST(GTK_CFLAGS) fi AM_CONDITIONAL(HAVE_GTK, test "x$HAVE_GTK" = "xyes") AM_CONDITIONAL(HAVE_GTK_X11, test "x$HAVE_GTK_X11" = "xyes") dnl QT is optional and only used in examples PKG_CHECK_MODULES(QT, QtGui >= 4.6, [ HAVE_QT_GV=yes HAVE_QT=yes ], [ HAVE_QT_GV=no PKG_CHECK_MODULES(QT, QtGui >= 4.0, HAVE_QT=yes, HAVE_QT=no) ]) if test "x$HAVE_QT" = "xyes"; then AC_MSG_CHECKING([Qt moc]) QT4_MOC=`$PKG_CONFIG --variable=moc_location QtGui` AC_MSG_RESULT($QT4_MOC) AC_SUBST(QT4_MOC) fi AM_CONDITIONAL(HAVE_QT, test "x$HAVE_QT" = "xyes") AM_CONDITIONAL(HAVE_QT_GV, test "x$HAVE_QT_GV" = "xyes") dnl chck for linux headers needed by the joystick seek example AC_COMPILE_IFELSE( [ AC_LANG_PROGRAM([ #include #include ],[ struct js_event js; js.type = JS_EVENT_AXIS; ]) ], [ HAVE_LINUX_JOYSTICK_HEADERS="yes" ], [ HAVE_LINUX_JOYSTICK_HEADERS="no" ]) AM_CONDITIONAL(HAVE_LINUX_JOYSTICK_HEADERS, test "x$HAVE_LINUX_JOYSTICK_HEADERS" = "xyes") dnl Check for -Bsymbolic-functions linker flag used to avoid dnl intra-library PLT jumps, if available. AC_ARG_ENABLE(Bsymbolic, [AC_HELP_STRING([--disable-Bsymbolic], [avoid linking with -Bsymbolic])],, [SAVED_LDFLAGS="${LDFLAGS}" AC_MSG_CHECKING([for -Bsymbolic-functions linker flag]) LDFLAGS=-Wl,-Bsymbolic-functions AC_TRY_LINK([], [int main (void) { return 0; }], AC_MSG_RESULT(yes) enable_Bsymbolic=yes, AC_MSG_RESULT(no) enable_Bsymbolic=no) LDFLAGS="${SAVED_LDFLAGS}"]) dnl *** set variables based on configure arguments *** dnl set license and copyright notice GST_LICENSE="LGPL" AC_DEFINE_UNQUOTED(GST_LICENSE, "$GST_LICENSE", [GStreamer license]) AC_SUBST(GST_LICENSE) dnl set location of plugin directory AG_GST_SET_PLUGINDIR dnl set release date/time AG_GST_SET_PACKAGE_RELEASE_DATETIME_WITH_NANO([$PACKAGE_VERSION_NANO], ["${srcdir}/gst-plugins-base.doap"], [$PACKAGE_VERSION_MAJOR.$PACKAGE_VERSION_MINOR.$PACKAGE_VERSION_MICRO]) # set by AG_GST_PARSE_SUBSYSTEM_DISABLES above dnl make sure it doesn't complain about unused variables if debugging is disabled NO_WARNINGS="" AG_GST_CHECK_GST_DEBUG_DISABLED([NO_WARNINGS="-Wno-unused"], [NO_WARNINGS=""]) dnl define an ERROR_CFLAGS Makefile variable dnl -Wformat-nonliteral - see ext/pango/gstclockoverlay.c and http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39438 AG_GST_SET_ERROR_CFLAGS($GST_GIT, [ -Wmissing-declarations -Wmissing-prototypes -Wredundant-decls -Wundef -Wwrite-strings -Wformat-nonliteral -Wformat-security -Winit-self -Wmissing-include-dirs -Waddress -Waggregate-return -Wno-multichar -Wnested-externs $NO_WARNINGS]) dnl define an ERROR_CXXFLAGS Makefile variable AG_GST_SET_ERROR_CXXFLAGS($GST_GIT, [ -Wmissing-declarations -Wredundant-decls -Wundef -Wwrite-strings -Wformat-nonliteral -Wformat-security -Winit-self -Wmissing-include-dirs -Waddress -Waggregate-return -Wno-multichar $NO_WARNINGS]) dnl define correct level for debugging messages AG_GST_SET_LEVEL_DEFAULT($GST_GIT) dnl used in examples AG_GST_DEFAULT_ELEMENTS dnl needed for encoding-target GST_DATADIR="$GST_PREFIX/share" AC_DEFINE_UNQUOTED(GST_DATADIR, "$GST_DATADIR", [system wide data directory]) AC_DEFINE_UNQUOTED(GST_MAJORMINOR, "$GST_MAJORMINOR", [major/minor version]) dnl behaviour of speex based audio resampler AC_MSG_CHECKING(which audio resample format to use for integer) AC_ARG_WITH([audioresample_format], AS_HELP_STRING([--with-audioresample-format],[Which implementation should be used for integer audio resampling, int/float/auto, (default is auto)]), [ac_cv_audioresample_format=$withval], [ac_cv_audioresample_format=auto])dnl AC_MSG_RESULT($ac_cv_audioresample_format) case $ac_cv_audioresample_format in int) AC_DEFINE(AUDIORESAMPLE_FORMAT_INT,1,[The int implementation should be used for integer audio resampling]) AC_SUBST(AUDIORESAMPLE_FORMAT_INT) ;; float) AC_DEFINE(AUDIORESAMPLE_FORMAT_FLOAT,1,[The float implementation should be used for integer audio resampling]) AC_SUBST(AUDIORESAMPLE_FORMAT_FLOAT) ;; auto) AC_DEFINE(AUDIORESAMPLE_FORMAT_AUTO,1,[The implementation that should be used for integer audio resampling witll be benchmarked at runtime]) AC_SUBST(AUDIORESAMPLE_FORMAT_AUTO) esac dnl *** plug-ins to include *** dnl these are all the gst plug-ins, compilable without additional libs AG_GST_CHECK_PLUGIN(adder) AG_GST_CHECK_PLUGIN(app) AG_GST_CHECK_PLUGIN(audioconvert) AG_GST_CHECK_PLUGIN(audiorate) AG_GST_CHECK_PLUGIN(audiotestsrc) AG_GST_CHECK_PLUGIN(encoding) AG_GST_CHECK_PLUGIN(ffmpegcolorspace) AG_GST_CHECK_PLUGIN(gdp) AG_GST_CHECK_PLUGIN(playback) AG_GST_CHECK_PLUGIN(audioresample) AG_GST_CHECK_PLUGIN(subparse) AG_GST_CHECK_PLUGIN(tcp) AG_GST_CHECK_PLUGIN(typefind) AG_GST_CHECK_PLUGIN(videotestsrc) AG_GST_CHECK_PLUGIN(videorate) AG_GST_CHECK_PLUGIN(videoscale) AG_GST_CHECK_PLUGIN(volume) dnl check for gstreamer core features (subsystems) dnl FIXME: this assumes srcdir == builddir for uninstalled setups GST_CONFIGPATH=`$PKG_CONFIG --variable=includedir gstreamer-0.10`"/gst/gstconfig.h" AG_GST_PARSE_SUBSYSTEM_DISABLES($GST_CONFIGPATH) AM_CONDITIONAL(USE_XML, test $GST_DISABLE_XML != "1") dnl disable plug-ins that require libxml2's HTML support if it is not available if test "x$HAVE_LIBXML_HTML" != "xyes"; then AG_GST_DISABLE_PLUGIN(subparse) fi dnl disable plug-ins that require sys/socket.h if it is not available if test "x$HAVE_SYS_SOCKET_H" != "xyes"; then AG_GST_DISABLE_PLUGIN(tcp) fi dnl iso-codes is optional, used by libgsttag AC_ARG_ENABLE(iso-codes, AC_HELP_STRING([--enable-iso-codes],[use iso-codes if installed]), [case "${enableval}" in yes) enable_iso_codes=yes ;; no) enable_iso_codes=no ;; *) AC_MSG_ERROR(bad value ${enableval} for --enable-iso-codes) ;; esac ], [enable_iso_codes=yes]) dnl Default value AC_MSG_CHECKING([whether to use iso-codes if they are available]) if test "x$enable_iso_codes" = "xyes"; then AC_MSG_RESULT([yes]) have_iso_codes=no AC_MSG_CHECKING([whether iso-codes are available on this system]) if $PKG_CONFIG iso-codes; then AC_MSG_RESULT([yes]) AC_MSG_CHECKING([whether iso-codes has iso-639 domain]) if $PKG_CONFIG --variable=domains iso-codes | $GREP -q 639 ; then AC_MSG_RESULT([yes]) AC_MSG_CHECKING([for iso-codes prefix]) ISO_CODES_PREFIX=`$PKG_CONFIG --variable=prefix iso-codes` if test -d "$ISO_CODES_PREFIX"; then AC_MSG_RESULT([yes]) AC_MSG_CHECKING([ISO_CODES_PREFIX]) AC_MSG_RESULT([$ISO_CODES_PREFIX]) ISO_639_DOMAIN="iso_639" AC_MSG_CHECKING([ISO_639_DOMAIN]) AC_MSG_RESULT([$ISO_639_DOMAIN]) have_iso_codes=yes AC_DEFINE([HAVE_ISO_CODES], [1], [make use of iso-codes for ISO-639]) AC_DEFINE_UNQUOTED([ISO_CODES_PREFIX], ["$ISO_CODES_PREFIX"], [prefix]) ISO_CODES_VERSION=`$PKG_CONFIG --modversion iso-codes` AC_DEFINE_UNQUOTED([ISO_CODES_VERSION], ["$ISO_CODES_VERSION"], [ ]) else AC_MSG_RESULT([no]) fi else AC_MSG_RESULT([no]) fi else AC_MSG_RESULT([no]) fi AM_CONDITIONAL(USE_ISO_CODES, test "x$have_iso_codes" = "xyes") else AC_MSG_RESULT([no (disabled via --disable-iso-codes)]) AM_CONDITIONAL(USE_ISO_CODES, false) fi dnl *** zlib is optionally used by id3 tag parsing in libgsttag *** translit(dnm, m, l) AM_CONDITIONAL(USE_ZLIB, true) AG_GST_CHECK_FEATURE(ZLIB, [zlib support for ID3 parsing in libgsttag],, [ PKG_CHECK_MODULES(ZLIB, [ zlib ], [ HAVE_ZLIB="yes" ], [ AG_GST_CHECK_LIBHEADER(ZLIB, z, uncompress,, zlib.h, [ HAVE_ZLIB="yes" ZLIB_LIBS="-lz" AC_SUBST(ZLIB_LIBS) ]) ]) ]) dnl *** sys plug-ins *** echo AC_MSG_NOTICE([Checking libraries for plugins in sys/]) echo dnl *** X11 *** translit(dnm, m, l) AM_CONDITIONAL(USE_X, true) AG_GST_CHECK_FEATURE(X, [X libraries and plugins], [ximagesink], [ AC_PATH_XTRA ac_cflags_save="$CFLAGS" ac_cppflags_save="$CPPFLAGS" CFLAGS="$CFLAGS $X_CFLAGS" CPPFLAGS="$CPPFLAGS $X_CFLAGS" dnl now try to find the HEADER AC_CHECK_HEADER(X11/Xlib.h, HAVE_X="yes", HAVE_X="no") if test "x$HAVE_X" = "xno" then AC_MSG_NOTICE([cannot find X11 development files]) else dnl this is much more than we want X_LIBS="$X_LIBS $X_PRE_LIBS $X_EXTRA_LIBS" dnl AC_PATH_XTRA only defines the path needed to find the X libs, dnl it does not add the libs; therefore we add them here X_LIBS="$X_LIBS -lX11" AC_SUBST(X_CFLAGS) AC_SUBST(X_LIBS) fi AC_SUBST(HAVE_X) CFLAGS="$ac_cflags_save" CPPFLAGS="$ac_cppflags_save" ]) dnl Check for Xv extension translit(dnm, m, l) AM_CONDITIONAL(USE_XVIDEO, true) AG_GST_CHECK_FEATURE(XVIDEO, [X11 XVideo extensions], [xvimagesink], [ AG_GST_CHECK_XV ]) dnl check for X Shm translit(dnm, m, l) AM_CONDITIONAL(USE_XSHM, true) AG_GST_CHECK_FEATURE(XSHM, [X Shared Memory extension], , [ if test x$HAVE_X = xyes; then AC_CHECK_LIB(Xext, XShmAttach, HAVE_XSHM="yes", HAVE_XSHM="no", $X_LIBS) if test "x$HAVE_XSHM" = "xyes"; then XSHM_LIBS="-lXext" else dnl On AIX, it is in XextSam instead, but we still need -lXext AC_CHECK_LIB(XextSam, XShmAttach, HAVE_XSHM="yes", HAVE_XSHM="no", $X_LIBS) if test "x$HAVE_XSHM" = "xyes"; then XSHM_LIBS="-lXext -lXextSam" fi fi fi ], , [ AC_SUBST(HAVE_XSHM) AC_SUBST(XSHM_LIBS) ]) dnl v4l/v4l2 checks have been moved down because they require X dnl *** Video 4 Linux *** dnl for information about the header/define, see sys/v4l/gstv4lelement.h dnl renamed to GST_V4L in accordance with V4L2 below translit(dnm, m, l) AM_CONDITIONAL(USE_GST_V4L, true) AG_GST_CHECK_FEATURE(GST_V4L, [Video 4 Linux], video4linux, [ AC_CHECK_DECL(VID_TYPE_MPEG_ENCODER, HAVE_GST_V4L="yes", HAVE_GST_V4L="no", [ #include #define _LINUX_TIME_H #define __user #include ]) dnl we can build v4l without Xv, but then we won't have XOverlay support if test "x$HAVE_GST_V4L" = "xyes" -a "x$HAVE_XVIDEO" != "xyes" then AC_MSG_NOTICE([NO XVIDEO FOUND, VIDEO4LINUX WILL BE BUILT]) AC_MSG_NOTICE([WITHOUT XOVERLAY SUPPORT]) fi ]) # Optional gudev for device probing AC_ARG_WITH([gudev], AC_HELP_STRING([--with-gudev], [device detection with gudev]), [], [with_gudev=check]) if test x$HAVE_GST_V4L = xyes; then if test x$with_gudev != xno; then PKG_CHECK_MODULES(GUDEV, [ gudev-1.0 >= 143 ], [ have_gudev=yes AC_DEFINE(HAVE_GUDEV, 1, [Whether gudev is available for device detection]) AC_DEFINE([G_UDEV_API_IS_SUBJECT_TO_CHANGE], 1, [I know the API is subject to change.]) ], [ have_gudev=no ]) else have_gudev=no fi fi AC_SUBST(GUDEV_CFLAGS) AC_SUBST(GUDEV_LIBS) dnl *** ext plug-ins *** dnl keep this list sorted alphabetically ! if test "x$BUILD_EXTERNAL" = "xyes"; then echo AC_MSG_NOTICE([Checking libraries for plugins in ext/]) echo dnl *** alsa *** translit(dnm, m, l) AM_CONDITIONAL(USE_ALSA, true) AG_GST_CHECK_FEATURE(ALSA, [ALSA], alsa, [ PKG_CHECK_MODULES(ALSA, alsa >= 0.9.1, [ HAVE_ALSA="yes" AC_SUBST(ALSA_CFLAGS) AC_SUBST(ALSA_LIBS) ], [ AM_PATH_ALSA(0.9.1, HAVE_ALSA="yes", HAVE_ALSA="no") ]) ]) dnl *** CDParanoia *** dnl Note: upstream has a pkg-config file only in post-10.2 SVN so far translit(dnm, m, l) AM_CONDITIONAL(USE_CDPARANOIA, true) AG_GST_CHECK_FEATURE(CDPARANOIA, [CDParanoia], cdparanoia, [ PKG_CHECK_MODULES(CDPARANOIA, cdparanoia-3 >= 10.2, [ HAVE_CDPARANOIA="yes" ], [ AG_GST_CHECK_LIBHEADER(CDPARANOIA, cdda_interface, cdda_open, -lm, cdda_interface.h, CDPARANOIA_LIBS="-lcdda_interface -lcdda_paranoia" HEADER_DIR="no" FOUND_CDPARANOIA="yes") if test "x$FOUND_CDPARANOIA" != "xyes"; then AG_GST_CHECK_LIBHEADER(CDPARANOIA, cdda_interface, cdda_open, -lm, cdda/cdda_interface.h, CDPARANOIA_LIBS="-lcdda_interface -lcdda_paranoia" HEADER_DIR="yes" FOUND_CDPARANOIA="yes") fi if test "x$HEADER_DIR" = "xyes"; then AC_DEFINE_UNQUOTED(CDPARANOIA_HEADERS_IN_DIR, , defined if cdda headers are in a cdda/ directory) fi if test "x$FOUND_CDPARANOIA" = "xyes"; then AC_CHECK_LIB(cdda_paranoia, paranoia_cachemodel_size, : , HAVE_CDPARANOIA=no, [-lcdda_interface]) fi AC_SUBST(CDPARANOIA_LIBS) ]) ]) dnl FIXME : add second check somehow if that is necessary dnl AC_CHECK_LIB(cdda_paranoia, paranoia_init, : , HAVE_CDPARANOIA=no, -lcdda_interface ) dnl AC_CHECK_HEADER(cdda_paranoia.h, :, HAVE_CDPARANOIA=no) dnl *** GNOME VFS *** translit(dnm, m, l) AM_CONDITIONAL(USE_GNOME_VFS, true) AG_GST_CHECK_FEATURE(GNOME_VFS, [GNOME VFS], gnomevfs, [ PKG_CHECK_MODULES(GNOME_VFS, gnome-vfs-2.0, [ HAVE_GNOME_VFS="yes" AC_SUBST(GNOME_VFS_CFLAGS) AC_SUBST(GNOME_VFS_LIBS) GNOME_VFS_MODULES_DIR="`$PKG_CONFIG --variable=modulesdir gnome-vfs-2.0`" AC_DEFINE_UNQUOTED(GNOME_VFS_MODULES_DIR, "$GNOME_VFS_MODULES_DIR", [The GnomeVFS modules directory.]) ],[ HAVE_GNOME_VFS="no" ] ) ]) dnl *** ivorbis *** dnl AM_PATH_IVORBIS only takes two options translit(dnm, m, l) AM_CONDITIONAL(USE_IVORBIS, true) AG_GST_CHECK_FEATURE(IVORBIS, [integer vorbis plug-in], ivorbisdec, [ AG_GST_PKG_CHECK_MODULES(IVORBIS, vorbisidec) if test $HAVE_IVORBIS = no then IVORBIS_LIBS= IVORBIS_CFLAGS= AC_CHECK_LIB(vorbisidec, vorbis_block_init, [IVORBIS_LIBS=-lvorbisidec HAVE_IVORBIS=yes case $host in arm-*-*) IVORBIS_CFLAGS="-D_ARM_ASSEM_ $IVORBIS_CFLAGS" esac ], HAVE_IVORBIS=no) AC_SUBST(IVORBIS_LIBS) AC_SUBST(IVORBIS_CFLAGS) else AC_CHECK_LIB(vorbisidec, vorbis_dsp_pcmout, AC_DEFINE([USE_TREMOLO],1, "Define if building for android"), USE_TREMOLO=no) fi ]) dnl *** libgio *** translit(dnm, m, l) AM_CONDITIONAL(USE_GIO, true) AG_GST_CHECK_FEATURE(GIO, [GIO library], gio, [ PKG_CHECK_MODULES(GIO, gio-2.0 >= 2.16, [ HAVE_GIO="yes" GIO_MODULE_DIR="`$PKG_CONFIG --variable=giomoduledir gio-2.0`" AC_DEFINE_UNQUOTED(GIO_MODULE_DIR, "$GIO_MODULE_DIR", [The GIO modules directory.]) GIO_LIBDIR="`$PKG_CONFIG --variable=libdir gio-2.0`" AC_DEFINE_UNQUOTED(GIO_LIBDIR, "$GIO_LIBDIR", [The GIO library directory.]) ], [ HAVE_GIO="no" ]) AC_SUBST(GIO_CFLAGS) AC_SUBST(GIO_LIBS) AC_SUBST(GIO_LDFLAGS) ]) dnl *** libvisual *** translit(dnm, m, l) AM_CONDITIONAL(USE_LIBVISUAL, true) AG_GST_CHECK_FEATURE(LIBVISUAL, [libvisual visualization library], libvisual, [ AG_GST_PKG_CHECK_MODULES(LIBVISUAL, libvisual-0.4 >= 0.4.0) if test $HAVE_LIBVISUAL = no then AG_GST_PKG_CHECK_MODULES(LIBVISUAL, libvisual = 0.2.0) if test x$HAVE_LIBVISUAL = xyes; then LIBVIS_PLUGINSDIR="`$PKG_CONFIG --variable=pluginsbasedir libvisual-0.2`" fi else if test x$HAVE_LIBVISUAL = xyes; then LIBVIS_PLUGINSDIR="`$PKG_CONFIG --variable=pluginsbasedir libvisual-0.4`" fi fi AC_MSG_NOTICE([libvisual pluginsdir: $LIBVIS_PLUGINSDIR]) if test x$LIBVIS_PLUGINSDIR != x; then AC_DEFINE_UNQUOTED(LIBVISUAL_PLUGINSBASEDIR, "$LIBVIS_PLUGINSDIR", [directory in which the detected libvisual's plugins are located]) fi ]) dnl *** ogg *** translit(dnm, m, l) AM_CONDITIONAL(USE_OGG, true) AG_GST_CHECK_FEATURE(OGG, [Xiph Ogg library], ogg, [ AG_GST_PKG_CHECK_MODULES(OGG, ogg >= 1.0) if test $HAVE_OGG = no then XIPH_PATH_OGG(HAVE_OGG="yes", HAVE_OGG="no") AS_SCRUB_INCLUDE(OGG_CFLAGS) fi ]) dnl *** pango *** translit(dnm, m, l) AM_CONDITIONAL(USE_PANGO, true) AG_GST_CHECK_FEATURE(PANGO, [Pango font rendering], pango, [ AG_GST_PKG_CHECK_MODULES(PANGO, pango >= 1.16.0 pangocairo >= 1.16.0) ]) dnl *** theora *** translit(dnm, m, l) AM_CONDITIONAL(USE_THEORA, true) AG_GST_CHECK_FEATURE(THEORA, [Xiph Theora video codec], theora, [ AG_GST_PKG_CHECK_MODULES(THEORA, theoradec >= 1.1 theoraenc >= 1.1) ]) dnl *** vorbis *** dnl AM_PATH_VORBIS only takes two options translit(dnm, m, l) AM_CONDITIONAL(USE_VORBIS, true) AG_GST_CHECK_FEATURE(VORBIS, [Xiph Vorbis audio codec], vorbis, [ AG_GST_PKG_CHECK_MODULES(VORBIS, vorbis >= 1.0 vorbisenc >= 1.0) if test $HAVE_VORBIS = no then XIPH_PATH_VORBIS(HAVE_VORBIS="yes", HAVE_VORBIS="no") AS_SCRUB_INCLUDE(VORBIS_CFLAGS) fi ]) if test "x$HAVE_VORBIS" = "xyes"; then ac_cflags_save="$CFLAGS" AC_COMPILE_IFELSE( AC_LANG_PROGRAM([ #include ],[ vorbis_dsp_state *v; vorbis_synthesis_restart (v); ]), HAVE_VSR=yes, HAVE_VSR=no) if test "x$HAVE_VSR" = "xyes"; then AC_DEFINE_UNQUOTED(HAVE_VORBIS_SYNTHESIS_RESTART, 1, [defined if vorbis_synthesis_restart is present]) fi CFLAGS="$ac_cflags_save" fi else dnl not building plugins with external dependencies, dnl but we still need to set the conditionals AM_CONDITIONAL(USE_ALSA, false) AM_CONDITIONAL(USE_CDPARANOIA, false) AM_CONDITIONAL(USE_GIO, false) AM_CONDITIONAL(USE_GNOME_VFS, false) AM_CONDITIONAL(USE_IVORBIS, false) AM_CONDITIONAL(USE_LIBVISUAL, false) AM_CONDITIONAL(USE_OGG, false) AM_CONDITIONAL(USE_PANGO, false) AM_CONDITIONAL(USE_THEORA, false) AM_CONDITIONAL(USE_VORBIS, false) fi dnl of EXT plugins dnl seeking needs freetype, so check for it here PKG_CHECK_MODULES(FT2, freetype2 >= 2.0.9, HAVE_FT2="yes", [ AC_CHECK_FT2(2.0.9, HAVE_FT2="yes", HAVE_FT2="no") ]) dnl make the HAVE_FT2 variable available to automake and Makefile.am AM_CONDITIONAL(HAVE_FT2, test "x$HAVE_FT2" = "xyes") AC_SUBST(FT2_CFLAGS) AC_SUBST(FT2_LIBS) dnl *** finalize CFLAGS, LDFLAGS, LIBS dnl Overview: dnl GST_OPTION_CFLAGS: common flags for profiling, debugging, errors, ... dnl GST_*: flags shared by built objects to link against GStreamer dnl GST_PLUGINS_BASE_CFLAGS: to link internally against the plugins base libs dnl (compare to other modules) or for i18n dnl GST_ALL_LDFLAGS: linker flags shared by all dnl GST_LIB_LDFLAGS: additional linker flags for all libaries dnl GST_LT_LDFLAGS: library versioning of our libraries dnl GST_PLUGIN_LDFLAGS: flags to be used for all plugins dnl GST_OPTION_CFLAGS if test "x$USE_DEBUG" = xyes; then PROFILE_CFLAGS="-g" fi AC_SUBST(PROFILE_CFLAGS) if test "x$PACKAGE_VERSION_NANO" = "x1"; then dnl Define _only_ when compiling a git version (not pre-releases or releases) DEPRECATED_CFLAGS="-DGST_DISABLE_DEPRECATED" else DEPRECATED_CFLAGS="" fi AC_SUBST(DEPRECATED_CFLAGS) dnl every flag in GST_OPTION_CFLAGS and GST_OPTION_CXXFLAGS can be overridden dnl at make time with e.g. make ERROR_CFLAGS="" GST_OPTION_CFLAGS="\$(WARNING_CFLAGS) \$(ERROR_CFLAGS) \$(DEBUG_CFLAGS) \$(PROFILE_CFLAGS) \$(GCOV_CFLAGS) \$(OPT_CFLAGS) \$(DEPRECATED_CFLAGS)" GST_OPTION_CXXFLAGS="\$(WARNING_CXXFLAGS) \$(ERROR_CXXFLAGS) \$(DEBUG_CFLAGS) \$(PROFILE_CFLAGS) \$(GCOV_CFLAGS) \$(OPT_CFLAGS) \$(DEPRECATED_CFLAGS)" AC_SUBST(GST_OPTION_CFLAGS) AC_SUBST(GST_OPTION_CXXFLAGS) dnl our libraries need to be versioned correctly AC_SUBST(GST_LT_LDFLAGS) dnl GST_PLUGINS_BASE_CFLAGS dnl prefer internal headers to already installed ones dnl also add builddir include for enumtypes and marshal GST_PLUGINS_BASE_CFLAGS="-I\$(top_srcdir)/gst-libs -I\$(top_builddir)/gst-libs" AC_SUBST(GST_PLUGINS_BASE_CFLAGS) dnl FIXME: do we want to rename to GST_ALL_* ? dnl add GST_OPTION_CFLAGS, but overridable GST_CXXFLAGS="$GLIB_CFLAGS $GST_CFLAGS \$(GLIB_EXTRA_CFLAGS) \$(GST_OPTION_CXXFLAGS)" GST_CFLAGS="$GLIB_CFLAGS $GST_CFLAGS \$(GLIB_EXTRA_CFLAGS) \$(GST_OPTION_CFLAGS)" AC_SUBST(GST_CFLAGS) AC_SUBST(GST_CXXFLAGS) dnl add GCOV libs because libtool strips -fprofile-arcs -ftest-coverage GST_LIBS="$GST_LIBS \$(GCOV_LIBS)" AC_SUBST(GST_LIBS) dnl LDFLAGS really should only contain flags, not libs - they get added before dnl whatevertarget_LIBS and -L flags here affect the rest of the linking GST_ALL_LDFLAGS="-no-undefined" if test "x${enable_Bsymbolic}" = "xyes"; then GST_ALL_LDFLAGS="$GST_ALL_LDFLAGS -Wl,-Bsymbolic-functions" fi AC_SUBST(GST_ALL_LDFLAGS) dnl GST_LIB_LDFLAGS dnl linker flags shared by all libraries dnl LDFLAGS modifier defining exported symbols from built libraries dnl (export _gst_foo but not __gst_foo) GST_LIB_LDFLAGS="-export-symbols-regex ^_?\(gst_\|Gst\|GST_\).*" AC_SUBST(GST_LIB_LDFLAGS) dnl this really should only contain flags, not libs - they get added before dnl whatevertarget_LIBS and -L flags here affect the rest of the linking GST_PLUGIN_LDFLAGS="-module -avoid-version -export-symbols-regex '^[_]*gst_plugin_desc.*' $GST_ALL_LDFLAGS" AC_SUBST(GST_PLUGIN_LDFLAGS) dnl *** output files *** AC_CONFIG_FILES( Makefile gst-plugins-base.spec gst/Makefile gst/adder/Makefile gst/app/Makefile gst/audioconvert/Makefile gst/audiorate/Makefile gst/audiotestsrc/Makefile gst/encoding/Makefile gst/ffmpegcolorspace/Makefile gst/gdp/Makefile gst/playback/Makefile gst/audioresample/Makefile gst/subparse/Makefile gst/tcp/Makefile gst/typefind/Makefile gst/videotestsrc/Makefile gst/videorate/Makefile gst/videoscale/Makefile gst/volume/Makefile sys/Makefile sys/ximage/Makefile sys/xvimage/Makefile sys/v4l/Makefile ext/Makefile ext/alsa/Makefile ext/cdparanoia/Makefile ext/gnomevfs/Makefile ext/gio/Makefile ext/libvisual/Makefile ext/ogg/Makefile ext/pango/Makefile ext/theora/Makefile ext/vorbis/Makefile gst-libs/Makefile gst-libs/gst/Makefile gst-libs/gst/audio/Makefile gst-libs/gst/app/Makefile gst-libs/gst/cdda/Makefile gst-libs/gst/fft/Makefile gst-libs/gst/floatcast/Makefile gst-libs/gst/interfaces/Makefile gst-libs/gst/netbuffer/Makefile gst-libs/gst/riff/Makefile gst-libs/gst/rtp/Makefile gst-libs/gst/rtsp/Makefile gst-libs/gst/sdp/Makefile gst-libs/gst/tag/Makefile gst-libs/gst/pbutils/Makefile gst-libs/gst/pbutils/gstpluginsbaseversion.h gst-libs/gst/video/Makefile tools/Makefile pkgconfig/Makefile pkgconfig/gstreamer-audio.pc pkgconfig/gstreamer-audio-uninstalled.pc pkgconfig/gstreamer-app.pc pkgconfig/gstreamer-app-uninstalled.pc pkgconfig/gstreamer-cdda.pc pkgconfig/gstreamer-cdda-uninstalled.pc pkgconfig/gstreamer-fft.pc pkgconfig/gstreamer-fft-uninstalled.pc pkgconfig/gstreamer-floatcast.pc pkgconfig/gstreamer-floatcast-uninstalled.pc pkgconfig/gstreamer-interfaces.pc pkgconfig/gstreamer-interfaces-uninstalled.pc pkgconfig/gstreamer-netbuffer.pc pkgconfig/gstreamer-netbuffer-uninstalled.pc pkgconfig/gstreamer-pbutils.pc pkgconfig/gstreamer-pbutils-uninstalled.pc pkgconfig/gstreamer-riff.pc pkgconfig/gstreamer-riff-uninstalled.pc pkgconfig/gstreamer-rtp.pc pkgconfig/gstreamer-rtp-uninstalled.pc pkgconfig/gstreamer-rtsp.pc pkgconfig/gstreamer-rtsp-uninstalled.pc pkgconfig/gstreamer-sdp.pc pkgconfig/gstreamer-sdp-uninstalled.pc pkgconfig/gstreamer-tag.pc pkgconfig/gstreamer-tag-uninstalled.pc pkgconfig/gstreamer-video.pc pkgconfig/gstreamer-video-uninstalled.pc pkgconfig/gstreamer-plugins-base.pc pkgconfig/gstreamer-plugins-base-uninstalled.pc tests/Makefile tests/check/Makefile tests/examples/Makefile tests/examples/app/Makefile tests/examples/audio/Makefile tests/examples/dynamic/Makefile tests/examples/encoding/Makefile tests/examples/fft/Makefile tests/examples/gio/Makefile tests/examples/overlay/Makefile tests/examples/seek/Makefile tests/examples/snapshot/Makefile tests/examples/playrec/Makefile tests/examples/v4l/Makefile tests/files/Makefile tests/icles/Makefile tests/icles/playback/Makefile docs/Makefile docs/design/Makefile docs/libs/Makefile docs/plugins/Makefile docs/version.entities po/Makefile.in common/Makefile common/m4/Makefile m4/Makefile ) dnl Create the config.h file for Visual Studio builds dnl Beware of spaces and /'s in some of the shell variable contents. sed \ -e 's/.*config.h.in.*autoheader.*/\/* Autogenerated config.h created for win32 Visual Studio builds *\/\n\n\/* PREFIX -- specifically added for Windows for easier moving *\/\n#define PREFIX "C:\\\\gstreamer"/' \ -e 's/.* GST_INSTALL_PLUGINS_HELPER/#define GST_INSTALL_PLUGINS_HELPER PREFIX "\\\\libexec\\\\gst-install-plugins-helper.exe"/' \ -e 's/.* GETTEXT_PACKAGE$/#define GETTEXT_PACKAGE "'$GETTEXT_PACKAGE'"/' \ -e 's/.* GST_DATADIR$/#define GST_DATADIR PREFIX "\\\\share"/' \ -e 's/.* GST_LEVEL_DEFAULT$/#define GST_LEVEL_DEFAULT GST_LEVEL_ERROR/' \ -e 's/.* GST_LICENSE$/#define GST_LICENSE "'$GST_LICENSE'"/' \ -e 's/.* GST_MAJORMINOR$/#define GST_MAJORMINOR "'$GST_MAJORMINOR'"/' \ -e "s,.* GST_PACKAGE_NAME$,#define GST_PACKAGE_NAME \"${GST_PACKAGE_NAME}\"," \ -e 's/.* GST_PACKAGE_ORIGIN$/#define GST_PACKAGE_ORIGIN "Unknown package origin"/' \ -e "s,.* GST_PACKAGE_RELEASE_DATETIME$,#define GST_PACKAGE_RELEASE_DATETIME \"${GST_PACKAGE_RELEASE_DATETIME}\"," \ -e 's/.* HAVE_CPU_I386$/#define HAVE_CPU_I386 1/' \ -e 's/.* HAVE_FGETPOS$/#define HAVE_FGETPOS 1/' \ -e 's/.* HAVE_FSETPOS$/#define HAVE_FSETPOS 1/' \ -e 's/.* HAVE_ISO_CODES$/#undef HAVE_ISO_CODES/' \ -e 's/.* HAVE_LIBXML2$/#define HAVE_LIBXML2 1/' \ -e 's/.* HAVE_PROCESS_H$/#define HAVE_PROCESS_H 1/' \ -e 's/.* HAVE_STDLIB_H$/#define HAVE_STDLIB_H 1/' \ -e 's/.* HAVE_STRING_H$/#define HAVE_STRING_H 1/' \ -e 's/.* HAVE_SYS_STAT_H$/#define HAVE_SYS_STAT_H 1/' \ -e 's/.* HAVE_SYS_TYPES_H$/#define HAVE_SYS_TYPES_H 1/' \ -e 's/.* HAVE_WIN32$/#define HAVE_WIN32 1/' \ -e 's/.* HAVE_WINSOCK2_H$/#define HAVE_WINSOCK2_H 1/' \ -e 's/.* HOST_CPU$/#define HOST_CPU "i686"/' \ -e 's/.* ISO_CODES_PREFIX$/#undef ISO_CODES_PREFIX/' \ -e 's/.* ISO_CODES_VERSION$/#undef ISO_CODES_VERSION/' \ -e 's/.* LIBDIR$/#ifdef _DEBUG\n# define LIBDIR PREFIX "\\\\debug\\\\lib"\n#else\n# define LIBDIR PREFIX "\\\\lib"\n#endif/' \ -e 's/.* LOCALEDIR$/#define LOCALEDIR PREFIX "\\\\share\\\\locale"/' \ -e "s/.* PACKAGE$/#define PACKAGE \"$PACKAGE\"/" \ -e 's/.* PACKAGE_BUGREPORT$/#define PACKAGE_BUGREPORT "http:\/\/bugzilla.gnome.org\/enter_bug.cgi?product=GStreamer"/' \ -e "s/.* PACKAGE_NAME$/#define PACKAGE_NAME \"$PACKAGE_NAME\"/" \ -e "s/.* PACKAGE_STRING$/#define PACKAGE_STRING \"$PACKAGE_STRING\"/" \ -e 's/.* PACKAGE_TARNAME$/#define PACKAGE_TARNAME "'$PACKAGE_TARNAME'"/' \ -e 's/.* PACKAGE_VERSION$/#define PACKAGE_VERSION "'$PACKAGE_VERSION'"/' \ -e 's/.* PLUGINDIR$/#ifdef _DEBUG\n# define PLUGINDIR PREFIX "\\\\debug\\\\lib\\\\gstreamer-0.10"\n#else\n# define PLUGINDIR PREFIX "\\\\lib\\\\gstreamer-0.10"\n#endif/' \ -e 's/.* USE_BINARY_REGISTRY$/#define USE_BINARY_REGISTRY/' \ -e 's/.* VERSION$/#define VERSION "'$VERSION'"/' \ -e "s/.* DEFAULT_AUDIOSINK$/#define DEFAULT_AUDIOSINK \"directsoundsink\"/" \ -e "s/.* DEFAULT_VIDEOSINK$/#define DEFAULT_VIDEOSINK \"directdrawsink\"/" \ -e "s/.* DEFAULT_VISUALIZER$/#define DEFAULT_VISUALIZER \"goom\"/" \ config.h.in >win32/common/config.h-new AC_OUTPUT AG_GST_OUTPUT_PLUGINS ORC_OUTPUT