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gstreamer/configure.ac
Tim-Philipp Müller 62d4c0b179 libs: fix API export/import and 'inconsistent linkage' on MSVC 
Export rtsp-server library API in headers when we're building the
library itself, otherwise import the API from the headers.

This fixes linker warnings on Windows when building with MSVC.

Fix up some missing config.h includes when building the lib which
is needed to get the export api define from config.h

https://bugzilla.gnome.org/show_bug.cgi?id=797185
2018-09-24 09:36:21 +01:00

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AC_PREREQ(2.69)
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 RTSP Server Library], [1.15.0.1],
[http://bugzilla.gnome.org/enter_bug.cgi?product=GStreamer],
[gst-rtsp-server])
AG_GST_INIT
dnl initialize automake
AM_INIT_AUTOMAKE([-Wno-portability 1.14 no-dist-gzip dist-xz tar-ustar subdir-objects])
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/rtsp-server/rtsp-server.c])
dnl define the output header for config
AC_CONFIG_HEADERS([config.h])
dnl AM_MAINTAINER_MODE only provides the option to configure to enable it
AM_MAINTAINER_MODE([enable])
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
dnl GST_API_VERSION=$PACKAGE_VERSION_MAJOR.$PACKAGE_VERSION_MINOR
dnl we override it here if we need to for the release candidate of new series
GST_API_VERSION=1.0
AC_SUBST(GST_API_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
dnl Keep CURRENT as MINOR * 100 + MICRO
dnl Ex : 1.0.0 => 0
dnl 1.0.3 => 3
dnl 1.1.0 => 100
dnl 1.2.5 => 205
dnl 1.10.9 (who knows) => 1009
dnl
dnl sets GST_LT_LDFLAGS
AS_LIBTOOL(GST, 1500, 0, 1500)
dnl *** required versions of GStreamer stuff ***
GST_REQ=1.15.0.1
GSTPB_REQ=1.15.0.1
GSTPG_REQ=1.15.0.1
GSTPD_REQ=1.15.0.1
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")
AC_CONFIG_MACRO_DIR([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-rtsp-server-$GST_API_VERSION])
dnl *** check for arguments to configure ***
AG_GST_ARG_DISABLE_FATAL_WARNINGS
AG_GST_ARG_ENABLE_EXTRA_CHECKS
AG_GST_ARG_DEBUG
AG_GST_ARG_VALGRIND
AG_GST_ARG_GCOV
AG_GST_ARG_WITH_PKG_CONFIG_PATH
AG_GST_ARG_WITH_PACKAGE_NAME
AG_GST_ARG_WITH_PACKAGE_ORIGIN
AG_GST_ARG_EXAMPLES
AG_GST_PKG_CONFIG_PATH
AG_GST_SET_PACKAGE_RELEASE_DATETIME_WITH_NANO([$PACKAGE_VERSION_NANO],
["${srcdir}/gst-rtsp-server.doap"],
[$PACKAGE_VERSION_MAJOR.$PACKAGE_VERSION_MINOR.$PACKAGE_VERSION_MICRO])
dnl building of tests
AC_ARG_ENABLE(tests,
AS_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 *** checks for platform ***
dnl * hardware/architecture *
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 find an assembler
AM_PROG_AS
AC_PATH_PROG(VALGRIND_PATH, valgrind, no)
AM_CONDITIONAL(HAVE_VALGRIND, test ! "x$VALGRIND_PATH" = "xno")
dnl check for gobject-introspection
GOBJECT_INTROSPECTION_CHECK([1.31.1])
dnl check for documentation tools
AG_GST_DOCBOOK_CHECK
GTK_DOC_CHECK([1.12])
dnl *** checks for libraries ***
dnl check for pthreads
AX_PTHREAD
dnl *** checks for header files ***
dnl *** checks for types/defines ***
dnl *** checks for structures ***
dnl *** checks for compiler characteristics ***
dnl *** checks for library functions ***
dnl *** checks for dependancy libraries ***
dnl GLib is required
GLIB_REQ=2.40.0
AC_SUBST([GLIB_REQ])
AG_GST_GLIB_CHECK([$GLIB_REQ])
dnl checks for gstreamer
dnl uninstalled is selected preferentially -- see pkg-config(1)
AG_GST_CHECK_GST($GST_API_VERSION, [$GST_REQ], [yes])
GST_TOOLS_DIR=`$PKG_CONFIG --variable=toolsdir gstreamer-$GST_API_VERSION`
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_API_VERSION --variable pluginsdir`
AC_SUBST(GST_PLUGINS_DIR)
AC_MSG_NOTICE(Using GStreamer Core Plugins in $GST_PLUGINS_DIR)
AG_GST_CHECK_GST_BASE($GST_API_VERSION, [$GST_REQ], [yes])
AG_GST_CHECK_GST_NET($GST_API_VERSION, [$GST_REQ], yes)
AG_GST_CHECK_GST_PLUGINS_BASE($GST_API_VERSION, [$GSTPB_REQ], [yes])
dnl check for uninstalled plugin directories for unit tests
AG_GST_CHECK_UNINSTALLED_SETUP([
AG_GST_CHECK_GST_PLUGINS_GOOD($GST_API_VERSION, [$GSTPB_REQ])
AG_GST_CHECK_GST_PLUGINS_BAD($GST_API_VERSION, [$GSTPB_REQ])
])
AG_GST_CHECK_GST_CHECK($GST_API_VERSION, [$GST_REQ], no)
AM_CONDITIONAL(HAVE_CHECK, test "x$HAVE_GST_CHECK" = "xyes")
dnl Check for -Bsymbolic-functions linker flag used to avoid
dnl intra-library PLT jumps, if available.
AC_ARG_ENABLE(Bsymbolic,
[AS_HELP_STRING([--disable-Bsymbolic],[avoid linking with -Bsymbolic])],,
[SAVED_LDFLAGS="${LDFLAGS}" SAVED_LIBS="${LIBS}"
AC_MSG_CHECKING([for -Bsymbolic-functions linker flag])
LDFLAGS=-Wl,-Bsymbolic-functions
LIBS=
AC_TRY_LINK([], [return 0],
AC_MSG_RESULT(yes)
enable_Bsymbolic=yes,
AC_MSG_RESULT(no)
enable_Bsymbolic=no)
LDFLAGS="${SAVED_LDFLAGS}" LIBS="${SAVED_LIBS}"])
dnl *** set variables based on configure arguments ***
dnl set license and copyright notice
GST_LICENSE="LGPL"
AC_DEFINE_UNQUOTED(GST_LICENSE, "$GST_LICENSE", [GStreamer license])
AC_SUBST(GST_LICENSE)
dnl set location of plugin directory
AG_GST_SET_PLUGINDIR
dnl set release date/time (and check that release version is in doap file)
AG_GST_SET_PACKAGE_RELEASE_DATETIME_WITH_NANO([$PACKAGE_VERSION_NANO],
["${srcdir}/gst-rtsp-server.doap"],
[$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
AG_GST_SET_ERROR_CFLAGS($FATAL_WARNINGS, [-Wmissing-declarations -Wmissing-prototypes -Wredundant-decls -Wundef -Wwrite-strings -Wformat-nonliteral -Wformat-security -Wold-style-definition -Winit-self -Wmissing-include-dirs -Waddress -Waggregate-return -Wno-multichar -Wnested-externs $NO_WARNINGS])
dnl define correct level for debugging messages
AG_GST_SET_LEVEL_DEFAULT($GST_GIT)
dnl used in examples
AG_GST_DEFAULT_ELEMENTS
dnl *** 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$USE_DEBUG" = xyes; then
PROFILE_CFLAGS="-g"
fi
AC_SUBST(PROFILE_CFLAGS)
# GST_DISABLE_DEPRECATED: hide the visibility of deprecated
# functionality from the API that gstreamer uses
# GST_REMOVE_DEPRECATED: don't compile deprecated functionality (breaks ABI)
if test "x$PACKAGE_VERSION_NANO" = "x1"; then
dnl Define _only_ when compiling from git (not for pre-releases or releases)
DEPRECATED_CFLAGS="-DGST_DISABLE_DEPRECATED"
else
DEPRECATED_CFLAGS=""
fi
AC_SUBST(DEPRECATED_CFLAGS)
VISIBILITY_CFLAGS=""
AS_COMPILER_FLAG([-fvisibility=hidden], [
VISIBILITY_CFLAGS="-fvisibility=hidden"
AC_DEFINE(GST_API_EXPORT, [extern __attribute__ ((visibility ("default")))], [public symbol export define])
], [
VISIBILITY_CFLAGS=""
AC_DEFINE(GST_API_EXPORT, [extern], [public symbol export define])
])
AC_SUBST(VISIBILITY_CFLAGS)
dnl disable strict aliasing
AS_COMPILER_FLAG([-fno-strict-aliasing], [EXTRA_CFLAGS="-fno-strict-aliasing"])
AC_SUBST(EXTRA_CFLAGS)
dnl every flag in GST_OPTION_CFLAGS can be overridden at make time
GST_OPTION_CFLAGS="\$(WARNING_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 $EXTRA_CFLAGS \$(GST_STATIC_CFLAGS) \$(GST_OPTION_CFLAGS) \$(VISIBILITY_CFLAGS)"
AC_SUBST(GST_CFLAGS)
AC_SUBST(GST_LIBS)
dnl GST_ALL_*
dnl vars common to for all internal objects (core libs, elements, applications)
dnl CFLAGS:
dnl - src and build dirs need to be added because every piece that gets built
dnl will need the GStreamer source and generated headers
GST_ALL_CFLAGS="-I\$(top_srcdir) -I\$(top_builddir) $GST_PLUGINS_BASE_CFLAGS $GST_CFLAGS \$(GST_OPTION_CFLAGS)"
AC_SUBST([GST_ALL_CFLAGS])
dnl FIXME: check if LTLIBINTL is needed everywhere
dnl I presume it is given that it contains the symbols that _() stuff maps to
GST_ALL_LIBS="$GST_LIBS $LTLIBINTL \$(GCOV_LIBS)"
AC_SUBST([GST_ALL_LIBS])
dnl LDFLAGS really should only contain flags, not libs - they get added before
dnl whatevertarget_LIBS and -L flags here affect the rest of the linking
GST_ALL_LDFLAGS="-no-undefined"
if test "x${enable_Bsymbolic}" = "xyes"; then
GST_ALL_LDFLAGS="$GST_ALL_LDFLAGS -Wl,-Bsymbolic-functions"
fi
AC_SUBST(GST_ALL_LDFLAGS)
dnl GST_LIB_LDFLAGS
dnl linker flags shared by all libraries
dnl LDFLAGS modifier defining exported symbols from built libraries
GST_LIB_LDFLAGS=""
AC_SUBST(GST_LIB_LDFLAGS)
dnl GST_OBJ_*
dnl default vars for all internal objects built on libgstrtspserver
dnl includes GST_ALL_*
GST_OBJ_CFLAGS="\$(GST_ALL_CFLAGS)"
AC_SUBST([GST_OBJ_CFLAGS])
GST_OBJ_LIBS="\$(top_builddir)/gst/rtsp-server/libgstrtspserver-$GST_API_VERSION.la \$(GST_ALL_LIBS)"
AC_SUBST([GST_OBJ_LIBS])
dnl If only building static libraries, define GST_STATIC_COMPILATION. This is
dnl needed only on Windows, but it doesn't hurt to have it everywhere.
if test x$enable_static = xyes -a x$enable_shared = xno; then
GST_STATIC_CFLAGS="-DGST_STATIC_COMPILATION"
fi
AC_SUBST(GST_STATIC_CFLAGS)
GST_PLUGIN_LDFLAGS="-module -avoid-version $GST_ALL_LDFLAGS"
AC_SUBST(GST_PLUGIN_LDFLAGS)
PKG_CHECK_MODULES(LIBCGROUP, libcgroup >= 0.26, HAVE_LIBCGROUP="yes", HAVE_LIBCGROUP="no")
AC_SUBST(LIBCGROUP_CFLAGS)
AC_SUBST(LIBCGROUP_LIBS)
AM_CONDITIONAL(HAVE_LIBCGROUP, test "x$HAVE_LIBCGROUP" = "xyes")
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
dnl *** output files ***
dnl keep this alphabetic per directory, please
AC_CONFIG_FILES([
Makefile
common/Makefile
common/m4/Makefile
gst/Makefile
gst/rtsp-server/Makefile
gst/rtsp-sink/Makefile
examples/Makefile
tests/Makefile
tests/check/Makefile
pkgconfig/Makefile
pkgconfig/gstreamer-rtsp-server.pc
pkgconfig/gstreamer-rtsp-server-uninstalled.pc
docs/Makefile
docs/version.entities
docs/libs/Makefile
])
AC_OUTPUT
echo "
Configuration
Version : ${VERSION}
Source code location : ${srcdir}
Prefix : ${prefix}
Compiler : ${CC}
CGroups example : ${HAVE_LIBCGROUP}
gst-rtsp-server configured. Type 'make' to build.
"
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