gstreamer/configure.ac

AC_PREREQ(2.52)

dnl initialize autoconf
dnl when going to/from release please set the nano (fourth number) right !
dnl releases only do Wall, cvs and prerelease does Werror too
AC_INIT(GStreamer, 0.10.8.1,
    http://bugzilla.gnome.org/enter_bug.cgi?product=GStreamer,
    gstreamer)

dnl initialize automake
AM_INIT_AUTOMAKE

dnl define PACKAGE_VERSION_* variables
AS_VERSION

dnl check if this is a release version
AS_NANO(GST_CVS="no", GST_CVS="yes")

dnl can autoconf find the source ?
AC_CONFIG_SRCDIR([gst/gst.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 our libraries and install dirs use major.minor as a version
GST_MAJORMINOR=$PACKAGE_VERSION_MAJOR.$PACKAGE_VERSION_MINOR
dnl we override it here for release candidates for a new series
GST_MAJORMINOR=0.10
AC_SUBST(GST_MAJORMINOR)
AC_DEFINE_UNQUOTED(GST_MAJORMINOR, "$GST_MAJORMINOR",
  [library major.minor version])

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, 8, 0, 8)

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

AM_PROG_LIBTOOL

dnl *** autotools stuff ****

dnl allow for different autotools
AS_AUTOTOOLS_ALTERNATE

dnl Add parameters for aclocal
AC_SUBST(ACLOCAL_AMFLAGS, "-I common/m4")

dnl set up gettext
dnl the version check needs to stay here because autopoint greps for it
AM_GNU_GETTEXT_VERSION([0.11.5])
AM_GNU_GETTEXT([external])
GST_GETTEXT([gstreamer-$GST_MAJORMINOR])

dnl *** check for arguments to configure ***

dnl subsystems - can influence other decisions so needs to be high up
dnl we need to AM_CONDITIONAL them here for automake 1.6.x compatibility
GST_CHECK_SUBSYSTEM_DISABLE(GST_DEBUG,[debugging subsystem])
AM_CONDITIONAL(GST_DISABLE_GST_DEBUG, test "x$GST_GST_DISABLE_DEBUG" = "xyes")
GST_CHECK_SUBSYSTEM_DISABLE(LOADSAVE,[pipeline XML load/save])
AM_CONDITIONAL(GST_DISABLE_LOADSAVE, test "x$GST_DISABLE_LOADSAVE" = "xyes")
dnl define a substitution to use in docs/gst/gstreamer.types
if test "x$GST_DISABLE_LOADSAVE" = "xyes"
then
  GST_LOADSAVE_DOC_TYPES="%"
else
  GST_LOADSAVE_DOC_TYPES=
fi
AC_SUBST(GST_LOADSAVE_DOC_TYPES)
GST_CHECK_SUBSYSTEM_DISABLE(PARSE,[command-line parser])
AM_CONDITIONAL(GST_DISABLE_PARSE, test "x$GST_DISABLE_PARSE" = "xyes")
if test "x$GST_DISABLE_PARSE" = xyes; then
  AC_DEFINE(GST_DISABLE_PARSE, 1,
    [Define if pipeline parsing code is disabled])
fi
GST_CHECK_SUBSYSTEM_DISABLE(TRACE,[tracing subsystem])
AM_CONDITIONAL(GST_DISABLE_TRACE, test "x$GST_DISABLE_TRACE" = "xyes")
GST_CHECK_SUBSYSTEM_DISABLE(ALLOC_TRACE,[allocation tracing])
AM_CONDITIONAL(GST_DISABLE_ALLOC_TRACE, test "x$GST_DISABLE_ALLOC_TRACE" = "xyes")
GST_CHECK_SUBSYSTEM_DISABLE(REGISTRY,[plugin registry])
AM_CONDITIONAL(GST_DISABLE_REGISTRY, test "x$GST_DISABLE_REGISTRY" = "xyes")
dnl define a substitution to use in docs/gst/gstreamer.types
if test "x$GST_DISABLE_REGISTRY" = "xyes"
then
  GST_REGISTRY_DOC_TYPES="%"
else
  GST_REGISTRY_DOC_TYPES=
fi
AC_SUBST(GST_REGISTRY_DOC_TYPES)
GST_CHECK_SUBSYSTEM_DISABLE(ENUMTYPES,[enum types])
AM_CONDITIONAL(GST_DISABLE_ENUMTYPES, test "x$GST_DISABLE_ENUMTYPES" = "xyes")
GST_CHECK_SUBSYSTEM_DISABLE(INDEX,[index])
AM_CONDITIONAL(GST_DISABLE_INDEX, test "x$GST_DISABLE_INDEX" = "xyes")
GST_CHECK_SUBSYSTEM_DISABLE(NET,[network distribution])
AM_CONDITIONAL(GST_DISABLE_NET, test "x$GST_DISABLE_NET" = "xyes")
GST_CHECK_SUBSYSTEM_DISABLE(PLUGIN,[plugin])
AM_CONDITIONAL(GST_DISABLE_PLUGIN, test "x$GST_DISABLE_PLUGIN" = "xyes")
GST_CHECK_SUBSYSTEM_DISABLE(URI,[uri handlers])
AM_CONDITIONAL(GST_DISABLE_URI, test "x$GST_DISABLE_URI" = "xyes")

GST_ARG_DEBUG
GST_ARG_PROFILING
GST_ARG_VALGRIND
GST_ARG_GCOV

GST_ARG_EXAMPLES

GST_ARG_WITH_PKG_CONFIG_PATH
GST_ARG_WITH_PACKAGE_NAME
GST_ARG_WITH_PACKAGE_ORIGIN

dnl use a cache dir for storing element registry info.
GST_CACHE_DIR=${localstatedir}/cache/gstreamer-$GST_MAJORMINOR

AC_ARG_WITH(cachedir,
  AC_HELP_STRING([--with-cachedir],
    [specify path to use for plugin and command completion registries]),
  [
    case "${withval}" in
      yes) AC_MSG_ERROR(bad value ${withval} for --with-cachedir) ;;
      no)  AC_MSG_ERROR(bad value ${withval} for --with-cachedir) ;;
      *)   GST_CACHE_DIR="${withval}" ;;
    esac
  ], 
  [:]) dnl Default value

AS_AC_EXPAND(GST_CACHE_DIR, $GST_CACHE_DIR)
AC_DEFINE_UNQUOTED(GST_CACHE_DIR, "$GST_CACHE_DIR", [Location of registry])
AC_MSG_NOTICE(Using $GST_CACHE_DIR as registry cache dir)

dnl building of tests
AC_ARG_ENABLE(tests,
  AC_HELP_STRING([--disable-tests], [disable building test apps]),
  [
    case "${enableval}" in
      yes) BUILD_TESTS=yes ;;
      no)  BUILD_TESTS=no ;;
      *)   AC_MSG_ERROR(bad value ${enableval} for --disable-tests) ;;
    esac
  ], 
[BUILD_TESTS=yes]) dnl Default value
AM_CONDITIONAL(BUILD_TESTS,         test "x$BUILD_TESTS" = "xyes")

dnl tests known to fail
AC_ARG_ENABLE(failing-tests,
  AC_HELP_STRING([--disable-failing-tests],
    [disable building tests known to fail]),
  [
    case "${enableval}" in
      yes) BUILD_FAILING_TESTS=yes ;;
      no)  BUILD_FAILING_TESTS=no ;;
      *)   AC_MSG_ERROR(bad value ${enableval} for --disable-failing-tests) ;;
    esac
  ], 
  [BUILD_FAILING_TESTS=no]) dnl Default value
AM_CONDITIONAL(BUILD_FAILING_TESTS, test "x$BUILD_FAILING_TESTS" = "xyes")
if test x$BUILD_FAILING_TESTS = xyes; then
  AC_MSG_WARN([building tests known to fail, use --disable-failing-tests to disable])
else
  AC_MSG_WARN([Sissy ! By asking to not build the tests known to fail, you hereby waive your right to customer support.  If you do not agree with this EULA, please press Ctrl-C before the next line is printed.  By allowing the next line to be printed, you expressly acknowledge your acceptance of this EULA.])
fi

dnl poison destroyed objects
AC_ARG_ENABLE(poisoning,
  AC_HELP_STRING([--enable-poisoning],
    [enable poisoning of deallocated objects]),
  [
    case "${enableval}" in
      yes) USE_POISONING=yes ;;
      no)  USE_POISONING=no ;;
      *)   AC_MSG_ERROR(bad value ${enableval} for --enable-poisoning) ;;
    esac
  ], 
  [USE_POISONING=no]) dnl Default value
if test "x$USE_POISONING" = xyes; then
  AC_DEFINE(USE_POISONING, 1,
    [Define if we should poison deallocated memory])
fi

dnl *** checks for platform ***

dnl * hardware/architecture *

dnl common/m4/gst-arch.m4
dnl check CPU type
GST_ARCH
dnl substitution for win32/common/config.h
HOST_CPU=$host_cpu
AC_SUBST(HOST_CPU)

dnl common/m4/gst-arch.m4
dnl check for unaligned access
GST_UNALIGNED_ACCESS
dnl create a configure variable for gst/gstconfig.h
if test x${as_cv_unaligned_access} = xyes ; then
  GST_HAVE_UNALIGNED_ACCESS_DEFINE="#define GST_HAVE_UNALIGNED_ACCESS 1"
else
  GST_HAVE_UNALIGNED_ACCESS_DEFINE="#define GST_HAVE_UNALIGNED_ACCESS 0"
fi
AC_SUBST(GST_HAVE_UNALIGNED_ACCESS_DEFINE)

dnl * software *

dnl check for large file support
dnl affected plugins must include config.h
AC_SYS_LARGEFILE

dnl HAVE_WIN32 currently means "disable POSIXisms".
case "$host" in
  *-*-mingw*)
    AC_DEFINE_UNQUOTED(HAVE_WIN32, 1, [Defined if compiling for Windows])
    ;;
  *)
    ;;
esac

dnl *** checks for programs ***

dnl find a compiler
AC_PROG_CC

dnl find an assembler
AM_PROG_AS

dnl we use awk in the bison version check
AC_PROG_AWK

dnl we require bison for building the parser
dnl FIXME: check if AC_PROG_YACC is suitable here
dnl FIXME: make precious
AC_PATH_PROG(BISON_PATH, bison, no)
if test x$BISON_PATH = xno; then
  AC_MSG_ERROR(Could not find bison)
fi

dnl check bison version
AC_MSG_CHECKING([bison version])

if $BISON_PATH --version | head -n 1 | $AWK '{ if ($4 < 1.35) exit 1; else exit 0;}'; 
then 
  AC_MSG_RESULT([ok])
else 
  AC_MSG_RESULT([too old.])
  AC_MSG_ERROR([Your bison version is too old, v1.35 or later is required.])
fi

dnl we require flex for building the parser
dnl FIXME: check if AC_PROG_LEX is suitable here
AC_PATH_PROG(FLEX_PATH, flex, no)
if test x$FLEX_PATH = xno; then
  AC_MSG_ERROR(Could not find flex)
fi

dnl Perl is used in building documentation
AC_PATH_PROG(PERL_PATH, perl, no)
if test x$PERL_PATH = xno; then
  AC_MSG_ERROR(Could not find perl)
fi

AC_PATH_PROG(VALGRIND_PATH, valgrind, no)
AM_CONDITIONAL(HAVE_VALGRIND, test ! "x$VALGRIND_PATH" = "xno")

dnl check for documentation tools
GST_DOCBOOK_CHECK
GTK_DOC_CHECK([1.3])
AS_PATH_PYTHON([2.1])
GST_PLUGIN_DOCS([1.3],[2.1])

dnl *** checks for libraries ***

dnl For interactive UNIX (a Sun thing)
dnl FIXME: this adds -lcposix to LIBS, but I doubt we use LIBS
AC_ISC_POSIX

dnl *** checks for header files ***

dnl check if we have ANSI C header files
AC_HEADER_STDC

dnl Check for ucontext.h
AC_CHECK_HEADERS([ucontext.h])
AC_CHECK_HEADERS([sys/socket.h], HAVE_SYS_SOCKET_H=yes)
AM_CONDITIONAL(HAVE_SYS_SOCKET_H, test "x$HAVE_SYS_SOCKET_H" = "xyes")
AC_CHECK_HEADERS([process.h])

dnl *** checks for types/defines ***

dnl *** checks for structures ***

dnl *** checks for compiler characteristics ***

dnl make sure we can use "inline" from C code
AC_C_INLINE

OPT_CFLAGS=
dnl Check for some compiler flags that optimize our code.
if test "x$GCC" = xyes; then
  AS_COMPILER_FLAG(-fno-common, OPT_CFLAGS="$OPT_CFLAGS -fno-common")
fi

dnl FIXME: decide what kind of flag this is, maybe it's not an optimization
dnl flag
dnl check if we should use -Wa,-mregnames on PowerPC, so we can use
dnl symbolic register names in inline asm
if test x$HAVE_CPU_PPC = xyes ; then
  AS_COMPILER_FLAG(["-Wa,-mregnames"],
    [OPT_CFLAGS="$OPT_CFLAGS -Wa,-mregnames"])
fi

dnl *** checks for library functions ***

AC_CHECK_FUNCS([sigaction])

dnl we use fork in the registry code
AC_CHECK_FUNCS([fork])

dnl check for fseeko()
AC_FUNC_FSEEKO
dnl check for ftello()
AC_CHECK_FUNCS([ftello])

AC_CHECK_FUNCS([fgetpos])
AC_CHECK_FUNCS([fsetpos])

dnl check for mmap()
AC_FUNC_MMAP
AM_CONDITIONAL(HAVE_MMAP, test "x$ac_cv_func_mmap_fixed_mapped" = "xyes")

dnl Check for a way to display the function name in debug output
GST_CHECK_FUNCTION

dnl test for register_printf_function
AC_CHECK_FUNC(register_printf_function,
  [
    GST_PRINTF_EXTENSION_FORMAT_DEFINE="#define GST_PTR_FORMAT \"P\""
    AC_DEFINE(HAVE_PRINTF_EXTENSION, 1,
      [Defined if we have register_printf_function ()])
  ],
  GST_PRINTF_EXTENSION_FORMAT_DEFINE="#define GST_PTR_FORMAT \"p\""
)
AC_SUBST(GST_PRINTF_EXTENSION_FORMAT_DEFINE)

dnl test if we have dladdr(); we use it for debugging; see gst/gstinfo.c
save_cflags="$CFLAGS"
CFLAGS="$CFLAGS -D_GNU_SOURCE"
AC_CHECK_LIB(dl, dladdr,
   AC_DEFINE(HAVE_DLADDR, 1,
             [Defined if we have dladdr ()]))
CFLAGS="$save_cflags"

dnl *** checks for dependancy libraries ***

dnl GLib

GST_GLIB_CHECK([2.8])

dnl Guess we need to keep this around until 0.11
GST_HAVE_GLIB_2_8_DEFINE="#define GST_HAVE_GLIB_2_8 1"
AC_SUBST(GST_HAVE_GLIB_2_8_DEFINE)

dnl Check for glib2 without extra fat, useful for the unversioned tool frontends
PKG_CHECK_MODULES(GLIB_ONLY, glib-2.0 >= $GLIB_REQ)
  
dnl libxml 2, which is/should be optional (FIXME)
if test "x$GST_DISABLE_LOADSAVE" = "xyes" && \
   test "x$GST_DISABLE_REGISTRY" = "xyes"
then
  AC_MSG_NOTICE([Registry and load/save are disabled, not checking for libxml2])
else
  dnl check for libxml2 with minimum req version
  GST_LIBXML2_CHECK(2.4.9)
fi

dnl check for "check", unit testing library/header
AM_PATH_CHECK(0.9.2,
    [
        HAVE_CHECK=yes
        AC_MSG_NOTICE(CHECK_CFLAGS: $CHECK_CFLAGS)
        AC_MSG_NOTICE(CHECK_LIBS: $CHECK_LIBS)
    ],
    HAVE_CHECK=no)
AM_CONDITIONAL(HAVE_CHECK, test "x$HAVE_CHECK" = "xyes")

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 define LIBDIR so we can inform people where we live
AS_AC_EXPAND(LIBDIR, $libdir)
AC_DEFINE_UNQUOTED(LIBDIR, "$LIBDIR", [library dir])

dnl set location of plugin directory
GST_SET_PLUGINDIR

dnl FIXME: add LIBXML_PKG here
GST_PKG_DEPS="glib-2.0, gobject-2.0, gmodule-2.0, gthread-2.0"
AC_SUBST(GST_PKG_DEPS)

dnl define an ERROR_CFLAGS Makefile variable
GST_SET_ERROR_CFLAGS($GST_CVS)

dnl define correct level for debugging messages
GST_SET_LEVEL_DEFAULT($GST_CVS)

dnl *** finalize CFLAGS, LDFLAGS, LIBS

dnl Overview:
dnl GST_OPTION_CFLAGS:  common cflags for profiling, debugging, errors, ...
dnl GST_ALL_*:          vars shared by all built objects
dnl GST_LIB_LDFLAGS:    additional linker flags for all libaries
dnl GST_OBJ_*:          additional vars to link to the core library
dnl			include GST_ALL_*
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)

DEPRECATED_CFLAGS="-DGST_DISABLE_DEPRECATED"
AC_SUBST(DEPRECATED_CFLAGS)

dnl every flag in GST_OPTION_CFLAGS can be overridden at make time
GST_OPTION_CFLAGS="\$(ERROR_CFLAGS) \$(DEBUG_CFLAGS) \$(PROFILE_CFLAGS) \$(GCOV_CFLAGS) \$(OPT_CFLAGS) \$(DEPRECATED_CFLAGS)"
AC_SUBST(GST_OPTION_CFLAGS)

dnl GST_ALL_*
dnl vars common to for all internal objects (core libs, elements, applications)
dnl CFLAGS:
dnl - XML needs to be added because xmlPtr is used in core
dnl - src and build dirs need to be added because every piece that gets built
dnl   will need the GStreamer source and generated headers
dnl LIBS: XML doesn't need to be added because we don't explicitly use symbols
dnl       from LibXML except for in the core library
GST_ALL_CFLAGS="-I\$(top_srcdir)/libs -I\$(top_srcdir) -I\$(top_builddir) $GLIB_CFLAGS $XML_CFLAGS \$(GST_OPTION_CFLAGS)"
dnl FIXME: check if LTLIBINTL is needed everywhere
dnl I presume it is given that it contains the symbols that _() stuff maps to
GST_ALL_LIBS="$GLIB_LIBS $LTLIBINTL \$(GCOV_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"

AC_SUBST(GST_ALL_CFLAGS)
AC_SUBST(GST_ALL_LIBS)
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
GST_LIB_LDFLAGS="-export-symbols-regex [_]*\(gst_\|Gst\|GST_\).*"
AC_SUBST(GST_LIB_LDFLAGS)

dnl GST_OBJ_*
dnl default vars for all internal objects built on libgstreamer
dnl includes GST_ALL_*
GST_OBJ_CFLAGS="\$(GST_ALL_CFLAGS)"
GST_OBJ_LIBS="\$(top_builddir)/gst/libgstreamer-$GST_MAJORMINOR.la \$(GST_ALL_LIBS)"
AC_SUBST(GST_OBJ_CFLAGS)
AC_SUBST(GST_OBJ_LIBS)

dnl GST_PLUGIN_LDFLAGS
dnl LDFLAGS for plugins; includes GST_ALL_LDFLAGS
GST_PLUGIN_LDFLAGS="-module -avoid-version -export-symbols-regex '^[_]*gst_plugin_desc\$\$' $GST_ALL_LDFLAGS"
AC_SUBST(GST_PLUGIN_LDFLAGS, "$GST_PLUGIN_LDFLAGS")

AC_CONFIG_FILES(
Makefile
gst/Makefile
gst/gstconfig.h
gst/gstversion.h
gst/parse/Makefile
libs/Makefile
libs/gst/Makefile
libs/gst/base/Makefile
libs/gst/check/Makefile
libs/gst/controller/Makefile
libs/gst/dataprotocol/Makefile
libs/gst/net/Makefile
plugins/Makefile
plugins/indexers/Makefile
plugins/elements/Makefile
po/Makefile.in
tests/Makefile
tests/benchmarks/Makefile
tests/check/Makefile
tests/misc/Makefile
tests/examples/Makefile
tests/examples/controller/Makefile
tests/examples/helloworld/Makefile
tests/examples/launch/Makefile
tests/examples/metadata/Makefile
tests/examples/queue/Makefile
tests/examples/typefind/Makefile
tests/examples/xml/Makefile
tools/Makefile
common/Makefile
common/m4/Makefile
docs/Makefile
docs/design/Makefile
docs/faq/Makefile
docs/gst/Makefile
docs/gst/gstreamer.types
docs/libs/Makefile
docs/plugins/Makefile
docs/manual/Makefile
docs/pwg/Makefile
docs/slides/Makefile
docs/xsl/Makefile
docs/version.entities
win32/common/config.h
pkgconfig/Makefile
stamp.h
pkgconfig/gstreamer.pc
pkgconfig/gstreamer-uninstalled.pc
pkgconfig/gstreamer-base.pc
pkgconfig/gstreamer-base-uninstalled.pc
pkgconfig/gstreamer-check.pc
pkgconfig/gstreamer-check-uninstalled.pc
pkgconfig/gstreamer-controller.pc
pkgconfig/gstreamer-controller-uninstalled.pc
pkgconfig/gstreamer-dataprotocol.pc
pkgconfig/gstreamer-dataprotocol-uninstalled.pc
pkgconfig/gstreamer-net.pc
pkgconfig/gstreamer-net-uninstalled.pc
gst-element-check.m4
gstreamer.spec
)

AC_OUTPUT