File: configure.ac

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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(GNonLin, 0.10.15,
    http://gnonlin.sourceforge.net/,
    gnonlin)

AG_GST_INIT

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([gnl/gnl.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)

AC_LIBTOOL_WIN32_DLL
AM_PROG_LIBTOOL

dnl *** required versions of GStreamer stuff ***
GST_REQ=0.10.9
GSTPB_REQ=0.10.13

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 *** check for arguments to configure ***

AG_GST_ARG_DEBUG
AG_GST_ARG_VALGRIND
AG_GST_ARG_GCOV

AG_GST_ARG_WITH_PKG_CONFIG_PATH
AG_GST_ARG_WITH_PACKAGE_NAME
AG_GST_ARG_WITH_PACKAGE_ORIGIN

dnl *** checks for platform ***

dnl * hardware/architecture *

dnl *** checks for programs ***

dnl find a compiler
AC_PROG_CC

dnl check if the compiler supports '-c' and '-o' options
AM_PROG_CC_C_O

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

dnl check for documentation tools
AG_GST_DOCBOOK_CHECK
GTK_DOC_CHECK([1.3])
AS_PATH_PYTHON([2.1])

dnl *** checks for libraries ***

dnl *** checks for header files ***

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

dnl *** checks for structures ***

dnl *** checks for compiler characteristics ***

dnl *** checks for library functions ***

dnl *** checks for dependancy libraries ***

dnl GLib is required
AG_GST_GLIB_CHECK([2.6])

dnl checks for gstreamer
dnl uninstalled is selected preferentially -- see pkg-config(1)
AG_GST_CHECK_GST($GST_MAJORMINOR, [$GST_REQ])

GST_TOOLS_DIR=`$PKG_CONFIG --variable=toolsdir gstreamer-$GST_MAJORMINOR`
if test -z $GST_TOOLS_DIR; then
  AC_MSG_ERROR([no tools dir defined in GStreamer pkg-config file; core upgrade needed.])
fi
AC_SUBST(GST_TOOLS_DIR)

GST_PLUGINS_DIR=`$PKG_CONFIG gstreamer-$GST_MAJORMINOR --variable pluginsdir`
AC_SUBST(GST_PLUGINS_DIR)
AC_MSG_NOTICE(Using GStreamer Core Plugins in $GST_PLUGINS_DIR)

AG_GST_CHECK_GST_BASE($GST_MAJORMINOR, [$GST_REQ])

AG_GST_CHECK_GST_PLUGINS_BASE($GST_MAJORMINOR, [$GSTPB_REQ])
GSTPB_PLUGINS_DIR=`$PKG_CONFIG gstreamer-plugins-base-$GST_MAJORMINOR --variable pluginsdir`
AC_SUBST(GSTPB_PLUGINS_DIR)
AC_MSG_NOTICE(Using GStreamer Base Plugins in $GSTPB_PLUGINS_DIR)

dnl There are paths for documentation xrefs
GLIB_PREFIX="`$PKG_CONFIG --variable=prefix glib-2.0`"
GST_PREFIX="`$PKG_CONFIG --variable=prefix gstreamer-$GST_MAJORMINOR`"
GSTPB_PREFIX="`$PKG_CONFIG --variable=prefix gstreamer-plugins-base-$GST_MAJORMINOR`"
AC_SUBST(GLIB_PREFIX)
AC_SUBST(GST_PREFIX)
AC_SUBST(GSTPB_PREFIX)

AG_GST_CHECK_GST_CHECK($GST_MAJORMINOR, [$GST_REQ], no)
AM_CONDITIONAL(HAVE_CHECK, test "x$HAVE_GST_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 set location of plugin directory
AG_GST_SET_PLUGINDIR

dnl define an ERROR_CFLAGS Makefile variable
AG_GST_SET_ERROR_CFLAGS($GST_CVS)

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

dnl used in examples
AG_GST_DEFAULT_ELEMENTS

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_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$GST_CVS" = "xyes"; then
  DEPRECATED_CFLAGS="-DGST_DISABLE_DEPRECATED"
else
  DEPRECATED_CFLAGS=""
fi
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 FIXME: do we want to rename to GST_ALL_* ?
dnl prefer internal headers to already installed ones
dnl add GST_OPTION_CFLAGS, but overridable
GST_CFLAGS="$GST_CFLAGS \$(GST_OPTION_CFLAGS)"
AC_SUBST(GST_CFLAGS)
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"
AC_SUBST(GST_ALL_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 ***

dnl keep this alphabetic per directory, please
AC_CONFIG_FILES(
Makefile
common/Makefile
common/m4/Makefile
docs/Makefile
docs/libs/Makefile
docs/version.entities
m4/Makefile
tests/Makefile
tests/check/Makefile
gnl/Makefile
gnonlin.spec
)
AC_OUTPUT

echo "GNonLin configured. Type 'make' to build."