mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-06-27 18:30:51 +00:00
46ed0f0489
For each lib we build export its own API in headers when we're building it, otherwise import the API from the headers. This fixes linker warnings on Windows when building with MSVC. The problem was that we had defined all GST_*_API decorators unconditionally to GST_EXPORT. This was intentional and only supposed to be temporary, but caused linker warnings because we tell the linker that we want to export all symbols even those from externall DLLs, and when the linker notices that they were in external DLLS and not present locally it warns. What we need to do when building each library is: export the library's own symbols and import all other symbols. To this end we define e.g. BUILDING_GST_FOO and then we define the GST_FOO_API decorator either to export or to import symbols depending on whether BUILDING_GST_FOO is set or not. That way external users of each library API automatically get the import. https://bugzilla.gnome.org/show_bug.cgi?id=797185
280 lines
6.7 KiB
Meson
280 lines
6.7 KiB
Meson
gst_sources = [
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'gst.c',
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'gstobject.c',
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'gstallocator.c',
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'gstbin.c',
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'gstbuffer.c',
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'gstbufferlist.c',
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'gstbufferpool.c',
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'gstbus.c',
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'gstcaps.c',
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'gstcapsfeatures.c',
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'gstchildproxy.c',
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'gstclock.c',
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'gstcontext.c',
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'gstcontrolbinding.c',
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'gstcontrolsource.c',
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'gstdatetime.c',
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'gstdebugutils.c',
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'gstdevice.c',
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'gstdeviceprovider.c',
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'gstdeviceproviderfactory.c',
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'gstdynamictypefactory.c',
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'gstelement.c',
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'gstelementfactory.c',
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'gsterror.c',
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'gstevent.c',
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'gstformat.c',
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'gstghostpad.c',
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'gstdevicemonitor.c',
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'gstinfo.c',
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'gstiterator.c',
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'gstatomicqueue.c',
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'gstmessage.c',
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'gstmeta.c',
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'gstmemory.c',
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'gstminiobject.c',
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'gstpad.c',
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'gstpadtemplate.c',
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'gstparamspecs.c',
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'gstpipeline.c',
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'gstplugin.c',
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'gstpluginfeature.c',
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'gstpluginloader.c',
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'gstpoll.c',
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'gstpreset.c',
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'gstprotection.c',
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'gstquark.c',
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'gstquery.c',
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'gstregistry.c',
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'gstregistrychunks.c',
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'gstpromise.c',
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'gstsample.c',
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'gstsegment.c',
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'gststreamcollection.c',
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'gststreams.c',
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'gststructure.c',
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'gstsystemclock.c',
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'gsttaglist.c',
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'gsttagsetter.c',
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'gsttask.c',
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'gsttaskpool.c',
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'gsttoc.c',
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'gsttocsetter.c',
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'gsttracer.c',
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'gsttracerfactory.c',
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'gsttracerrecord.c',
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'gsttracerutils.c',
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'gsttypefind.c',
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'gsttypefindfactory.c',
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'gsturi.c',
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'gstutils.c',
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'gstvalue.c',
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'gstparse.c',
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]
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gst_headers = [
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'gst.h',
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'glib-compat.h',
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'gstobject.h',
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'gstallocator.h',
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'gstbin.h',
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'gstbuffer.h',
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'gstbufferlist.h',
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'gstbufferpool.h',
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'gstbus.h',
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'gstcaps.h',
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'gstcapsfeatures.h',
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'gstchildproxy.h',
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'gstclock.h',
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'gstcompat.h',
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'gstcontext.h',
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'gstcontrolbinding.h',
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'gstcontrolsource.h',
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'gstdatetime.h',
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'gstdebugutils.h',
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'gstelement.h',
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'gstelementmetadata.h',
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'gstdevice.h',
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'gstdeviceprovider.h',
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'gstdeviceproviderfactory.h',
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'gstdynamictypefactory.h',
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'gstelementfactory.h',
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'gsterror.h',
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'gstevent.h',
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'gstformat.h',
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'gstghostpad.h',
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'gstdevicemonitor.h',
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'gstinfo.h',
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'gstiterator.h',
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'gstatomicqueue.h',
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'gstmacros.h',
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'gstmessage.h',
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'gstmeta.h',
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'gstmemory.h',
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'gstminiobject.h',
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'gstpad.h',
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'gstpadtemplate.h',
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'gstparamspecs.h',
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'gstpipeline.h',
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'gstplugin.h',
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'gstpluginfeature.h',
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'gstpoll.h',
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'gstpreset.h',
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'gstprotection.h',
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'gstquery.h',
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'gstpromise.h',
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'gstsample.h',
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'gstsegment.h',
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'gststreamcollection.h',
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'gststreams.h',
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'gststructure.h',
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'gstsystemclock.h',
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'gsttaglist.h',
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'gsttagsetter.h',
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'gsttask.h',
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'gsttaskpool.h',
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'gsttoc.h',
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'gsttocsetter.h',
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'gsttracer.h',
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'gsttracerfactory.h',
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'gsttracerrecord.h',
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'gsttypefind.h',
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'gsttypefindfactory.h',
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'gsturi.h',
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'gstutils.h',
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'gstvalue.h',
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'gstregistry.h',
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'gstparse.h',
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'math-compat.h',
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]
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install_headers(gst_headers, subdir : 'gstreamer-1.0/gst')
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gst_registry = get_option('registry')
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if gst_registry
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gst_registry_sources = ['gstregistrybinary.c']
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else
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gst_registry_sources = []
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endif
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# Make copy so configure_file consumes the copy and we can
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# still add to the original cdata later.
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gst_cdata = cdata
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if gst_debug
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gst_cdata.set('GST_DISABLE_GST_DEBUG_DEFINE', '#undef GST_DISABLE_GST_DEBUG')
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else
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gst_cdata.set('GST_DISABLE_GST_DEBUG_DEFINE', '#define GST_DISABLE_GST_DEBUG 1')
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endif
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if gst_registry
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gst_cdata.set('GST_DISABLE_REGISTRY_DEFINE', '#undef GST_DISABLE_REGISTRY')
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else
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gst_cdata.set('GST_DISABLE_REGISTRY_DEFINE', '#define GST_DISABLE_REGISTRY 1')
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endif
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gst_parse = get_option('gst_parse')
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if gst_parse
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gst_cdata.set('GST_DISABLE_PARSE_DEFINE', '#undef GST_DISABLE_PARSE')
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else
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gst_cdata.set('GST_DISABLE_PARSE_DEFINE', '#define GST_DISABLE_PARSE 1')
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endif
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# FIXME: add --disable-plugin option?
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gst_cdata.set('GST_DISABLE_PLUGIN_DEFINE', '#undef GST_DISABLE_PLUGIN')
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configure_file(input : 'gstconfig.h.in',
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output : 'gstconfig.h',
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install_dir : join_paths(get_option('includedir'), 'gstreamer-1.0/gst'),
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configuration : gst_cdata)
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version_cdata = configuration_data()
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version_cdata.set('GST_VERSION_MAJOR', gst_version_major)
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version_cdata.set('GST_VERSION_MINOR', gst_version_minor)
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version_cdata.set('GST_VERSION_MICRO', gst_version_micro)
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version_cdata.set('GST_VERSION_NANO', gst_version_nano)
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gst_version_h = configure_file(input : 'gstversion.h.in',
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output : 'gstversion.h',
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install_dir : join_paths(get_option('includedir'), 'gstreamer-1.0/gst'),
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configuration : version_cdata)
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gst_enums = gnome.mkenums_simple('gstenumtypes',
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sources : gst_headers,
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header_prefix : '#include <gst/gstconfig.h>',
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body_prefix : '#include "gst/gst_private.h"\n#include <gst/gst.h>',
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decorator : 'GST_API',
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install_header : true,
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install_dir : join_paths(get_option('includedir'), 'gstreamer-1.0/gst'))
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gstenum_h = gst_enums[1]
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gstenum_c = gst_enums[0]
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gst_parse_sources = []
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if gst_parse
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subdir('parse')
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endif
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subdir('printf')
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libgst_c_args = gst_c_args + [
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'-D_GNU_SOURCE',
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'-DG_LOG_DOMAIN=g_log_domain_gstreamer',
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'-DGST_DISABLE_DEPRECATED',
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]
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tracer_hooks = get_option('tracer_hooks')
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if not tracer_hooks
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libgst_c_args += ['-DGST_DISABLE_GST_TRACER_HOOKS']
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endif
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# Make sure that subproject building gir files work
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gst_incdirs = [configinc]
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gst_gen_sources = [gstenum_h]
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libgst = library('gstreamer-1.0', gst_sources,
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gstenum_h, gstenum_c, gst_parse_sources, gst_registry_sources,
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version : libversion,
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soversion : soversion,
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darwin_versions : osxversion,
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c_args : libgst_c_args + ['-DBUILDING_GST'],
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include_directories : [configinc,
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# HACK, change include paths in .y and .l in final version.
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include_directories('parse')],
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link_with : printf_lib,
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install : true,
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dependencies : [gobject_dep, gmodule_dep, glib_dep, mathlib, dl_dep] + backtrace_deps
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+ platform_deps,
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)
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if build_gir
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gst_gir_extra_args = gir_init_section + [ '--c-include=gst/gst.h' ]
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if meson.is_subproject()
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# FIXME: There must be a better way to do this
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# Need to pass the include path to find gst/gst.h and gst/gstenumtypes.h (built)
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gst_gir_extra_args += ['--cflags-begin',
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'-I' + meson.current_source_dir() + '/..',
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'-I' + meson.current_build_dir() + '/..',
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'--cflags-end']
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endif
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gst_incdirs += [configinc]
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gst_gen_sources += [gnome.generate_gir(libgst,
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sources : gst_sources + gst_headers + gst_enums + [gst_version_h],
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namespace : 'Gst',
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nsversion : apiversion,
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identifier_prefix : 'Gst',
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symbol_prefix : 'gst',
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export_packages : 'gstreamer-1.0',
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includes : ['GLib-2.0', 'GObject-2.0', 'GModule-2.0' ],
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install : true,
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extra_args : gst_gir_extra_args,
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)]
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endif
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gst_dep = declare_dependency(link_with : libgst,
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include_directories : gst_incdirs,
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dependencies : [glib_dep, gobject_dep, gmodule_dep],
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# Everything that uses libgst needs this built to compile
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sources : gst_gen_sources,
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)
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