Compilation fails at Arch Linux
I am trying to compile version 0.30.7 at Arch Linux and it fails:
valac -C --target-glib=2.40 --vapidir=/build/shotwell/src/shotwell-0.30.7/vapi --enable-checking --fatal-warnings --enable-experimental --enable-deprecated --define=NEW_GEXIV2_API --define=HAVE_FLICKR --define=HAVE_GOOGLEPHOTOS --define=HAVE_PIWIGO --define=HAVE_YOUTUBE --define=HAVE_GALLERY3 --define=HAVE_TUMBLR --define=TRACE_ --define=MEASURE_ --define=HAVE_UDEV --pkg posix --pkg libexif --pkg libraw --pkg gmodule-2.0 --pkg gexiv2 --pkg gudev-1.0 --pkg gio-unix-2.0 --pkg gstreamer-pbutils-1.0 --pkg libgphoto2 --pkg posix --pkg gtk+-3.0 --pkg sqlite3 --pkg gee-0.8 --pkg gio-2.0 --color=always --directory src/25a6634@@shotwell@exe --basedir ../shotwell-0.30.7/src --gresources=../shotwell-0.30.7/org.gnome.Shotwell.gresource.xml --pkg libgphoto2 --pkg libraw --pkg libexif --gresources /build/shotwell/src/shotwell-0.30.7/org.gnome.Shotwell.gresource.xml ../shotwell-0.30.7/src/unit/Unit.vala ../shotwell-0.30.7/src/util/Util.vala ../shotwell-0.30.7/src/util/file.vala ../shotwell-0.30.7/src/util/image.vala ../shotwell-0.30.7/src/util/misc.vala ../shotwell-0.30.7/src/util/string.vala ../shotwell-0.30.7/src/util/system.vala ../shotwell-0.30.7/src/util/ui.vala ../shotwell-0.30.7/src/threads/Threads.vala ../shotwell-0.30.7/src/threads/Workers.vala ../shotwell-0.30.7/src/threads/BackgroundJob.vala ../shotwell-0.30.7/src/threads/Semaphore.vala ../shotwell-0.30.7/src/db/Db.vala ../shotwell-0.30.7/src/db/DatabaseTable.vala ../shotwell-0.30.7/src/db/PhotoTable.vala ../shotwell-0.30.7/src/db/EventTable.vala ../shotwell-0.30.7/src/db/TagTable.vala ../shotwell-0.30.7/src/db/TombstoneTable.vala ../shotwell-0.30.7/src/db/VideoTable.vala ../shotwell-0.30.7/src/db/VersionTable.vala ../shotwell-0.30.7/src/db/SavedSearchDBTable.vala ../shotwell-0.30.7/src/editing_tools/EditingTools.vala ../shotwell-0.30.7/src/editing_tools/RGBHistogramManipulator.vala ../shotwell-0.30.7/src/editing_tools/StraightenTool.vala ../shotwell-0.30.7/src/slideshow/Slideshow.vala ../shotwell-0.30.7/src/slideshow/TransitionEffects.vala ../shotwell-0.30.7/src/photos/Photos.vala ../shotwell-0.30.7/src/photos/PhotoFileAdapter.vala ../shotwell-0.30.7/src/photos/PhotoFileFormat.vala ../shotwell-0.30.7/src/photos/PhotoFileSniffer.vala ../shotwell-0.30.7/src/photos/PhotoMetadata.vala ../shotwell-0.30.7/src/photos/GRaw.vala ../shotwell-0.30.7/src/photos/GdkSupport.vala ../shotwell-0.30.7/src/photos/GifSupport.vala ../shotwell-0.30.7/src/photos/JfifSupport.vala ../shotwell-0.30.7/src/photos/BmpSupport.vala ../shotwell-0.30.7/src/photos/RawSupport.vala ../shotwell-0.30.7/src/photos/PngSupport.vala ../shotwell-0.30.7/src/photos/TiffSupport.vala ../shotwell-0.30.7/src/plugins/Plugins.vala ../shotwell-0.30.7/src/plugins/StandardHostInterface.vala ../shotwell-0.30.7/src/plugins/ManifestWidget.vala ../shotwell-0.30.7/src/publishing/Publishing.vala ../shotwell-0.30.7/src/publishing/PublishingUI.vala ../shotwell-0.30.7/src/publishing/PublishingPluginHost.vala ../shotwell-0.30.7/src/publishing/APIGlue.vala ../shotwell-0.30.7/src/library/Library.vala ../shotwell-0.30.7/src/library/LibraryWindow.vala ../shotwell-0.30.7/src/library/LibraryBranch.vala ../shotwell-0.30.7/src/library/TrashSidebarEntry.vala ../shotwell-0.30.7/src/library/OfflineSidebarEntry.vala ../shotwell-0.30.7/src/library/FlaggedSidebarEntry.vala ../shotwell-0.30.7/src/library/LastImportSidebarEntry.vala ../shotwell-0.30.7/src/library/ImportQueueSidebarEntry.vala ../shotwell-0.30.7/src/library/FlaggedPage.vala ../shotwell-0.30.7/src/library/ImportQueuePage.vala ../shotwell-0.30.7/src/library/LastImportPage.vala ../shotwell-0.30.7/src/library/OfflinePage.vala ../shotwell-0.30.7/src/library/TrashPage.vala ../shotwell-0.30.7/src/direct/Direct.vala ../shotwell-0.30.7/src/direct/DirectWindow.vala ../shotwell-0.30.7/src/direct/DirectPhoto.vala ../shotwell-0.30.7/src/direct/DirectPhotoPage.vala ../shotwell-0.30.7/src/direct/DirectView.vala ../shotwell-0.30.7/src/core/Core.vala ../shotwell-0.30.7/src/core/DataCollection.vala ../shotwell-0.30.7/src/core/DataSet.vala ../shotwell-0.30.7/src/core/util.vala ../shotwell-0.30.7/src/core/SourceCollection.vala ../shotwell-0.30.7/src/core/SourceHoldingTank.vala ../shotwell-0.30.7/src/core/DatabaseSourceCollection.vala ../shotwell-0.30.7/src/core/ContainerSourceCollection.vala ../shotwell-0.30.7/src/core/ViewCollection.vala ../shotwell-0.30.7/src/core/DataObject.vala ../shotwell-0.30.7/src/core/Alteration.vala ../shotwell-0.30.7/src/core/DataSource.vala ../shotwell-0.30.7/src/core/DataSourceTypes.vala ../shotwell-0.30.7/src/core/DataView.vala ../shotwell-0.30.7/src/core/DataViewTypes.vala ../shotwell-0.30.7/src/core/Tracker.vala ../shotwell-0.30.7/src/core/SourceInterfaces.vala ../shotwell-0.30.7/src/sidebar/Sidebar.vala ../shotwell-0.30.7/src/sidebar/Branch.vala ../shotwell-0.30.7/src/sidebar/Entry.vala ../shotwell-0.30.7/src/sidebar/Tree.vala ../shotwell-0.30.7/src/sidebar/common.vala ../shotwell-0.30.7/src/events/Events.vala ../shotwell-0.30.7/src/events/EventsBranch.vala ../shotwell-0.30.7/src/events/EventsDirectoryPage.vala ../shotwell-0.30.7/src/events/EventPage.vala ../shotwell-0.30.7/src/events/EventDirectoryItem.vala ../shotwell-0.30.7/src/tags/Tags.vala ../shotwell-0.30.7/src/tags/TagsBranch.vala ../shotwell-0.30.7/src/tags/TagPage.vala ../shotwell-0.30.7/src/tags/HierarchicalTagIndex.vala ../shotwell-0.30.7/src/tags/HierarchicalTagUtilities.vala ../shotwell-0.30.7/src/camera/Camera.vala ../shotwell-0.30.7/src/camera/CameraBranch.vala ../shotwell-0.30.7/src/camera/CameraTable.vala ../shotwell-0.30.7/src/camera/GPhoto.vala ../shotwell-0.30.7/src/camera/ImportPage.vala ../shotwell-0.30.7/src/searches/Searches.vala ../shotwell-0.30.7/src/searches/SearchesBranch.vala ../shotwell-0.30.7/src/searches/SearchBoolean.vala ../shotwell-0.30.7/src/searches/SavedSearchPage.vala ../shotwell-0.30.7/src/searches/SavedSearchDialog.vala ../shotwell-0.30.7/src/config/Config.vala ../shotwell-0.30.7/src/config/ConfigurationInterfaces.vala ../shotwell-0.30.7/src/config/GSettingsEngine.vala ../shotwell-0.30.7/src/data_imports/DataImports.vala ../shotwell-0.30.7/src/data_imports/DataImportsPluginHost.vala ../shotwell-0.30.7/src/data_imports/DataImportsUI.vala ../shotwell-0.30.7/src/data_imports/DataImportJob.vala ../shotwell-0.30.7/src/data_imports/DataImportSource.vala ../shotwell-0.30.7/src/folders/Folders.vala ../shotwell-0.30.7/src/folders/FoldersBranch.vala ../shotwell-0.30.7/src/folders/FoldersPage.vala ../shotwell-0.30.7/src/import-roll/ImportRollBranch.vala ../shotwell-0.30.7/src/import-roll/ImportRollEntry.vala ../shotwell-0.30.7/src/main.vala ../shotwell-0.30.7/src/AppWindow.vala ../shotwell-0.30.7/src/CollectionPage.vala ../shotwell-0.30.7/src/NaturalCollate.vala ../shotwell-0.30.7/src/Thumbnail.vala ../shotwell-0.30.7/src/ThumbnailCache.vala ../shotwell-0.30.7/src/CheckerboardLayout.vala ../shotwell-0.30.7/src/PhotoPage.vala ../shotwell-0.30.7/src/Page.vala ../shotwell-0.30.7/src/SortedList.vala ../shotwell-0.30.7/src/Dimensions.vala ../shotwell-0.30.7/src/Box.vala ../shotwell-0.30.7/src/Photo.vala ../shotwell-0.30.7/src/Orientation.vala ../shotwell-0.30.7/src/BatchImport.vala ../shotwell-0.30.7/src/Dialogs.vala ../shotwell-0.30.7/src/Resources.vala ../shotwell-0.30.7/src/Debug.vala ../shotwell-0.30.7/src/Properties.vala ../shotwell-0.30.7/src/Event.vala ../shotwell-0.30.7/src/International.vala ../shotwell-0.30.7/src/AppDirs.vala ../shotwell-0.30.7/src/PixbufCache.vala ../shotwell-0.30.7/src/CommandManager.vala ../shotwell-0.30.7/src/Commands.vala ../shotwell-0.30.7/src/SlideshowPage.vala ../shotwell-0.30.7/src/LibraryFiles.vala ../shotwell-0.30.7/src/Printing.vala ../shotwell-0.30.7/src/Tag.vala ../shotwell-0.30.7/src/Screensaver.vala ../shotwell-0.30.7/src/Exporter.vala ../shotwell-0.30.7/src/DirectoryMonitor.vala ../shotwell-0.30.7/src/LibraryMonitor.vala ../shotwell-0.30.7/src/VideoSupport.vala ../shotwell-0.30.7/src/Tombstone.vala ../shotwell-0.30.7/src/MetadataWriter.vala ../shotwell-0.30.7/src/Application.vala ../shotwell-0.30.7/src/TimedQueue.vala ../shotwell-0.30.7/src/MediaPage.vala ../shotwell-0.30.7/src/MediaDataRepresentation.vala ../shotwell-0.30.7/src/DesktopIntegration.vala ../shotwell-0.30.7/src/MediaInterfaces.vala ../shotwell-0.30.7/src/MediaMetadata.vala ../shotwell-0.30.7/src/VideoMetadata.vala ../shotwell-0.30.7/src/MediaMonitor.vala ../shotwell-0.30.7/src/PhotoMonitor.vala ../shotwell-0.30.7/src/VideoMonitor.vala ../shotwell-0.30.7/src/SearchFilter.vala ../shotwell-0.30.7/src/MediaViewTracker.vala ../shotwell-0.30.7/src/UnityProgressBar.vala ../shotwell-0.30.7/src/Upgrades.vala ../shotwell-0.30.7/src/dialogs/AdjustDateTimeDialog.vala ../shotwell-0.30.7/src/dialogs/EntryMultiCompletion.vala ../shotwell-0.30.7/src/dialogs/ExportDialog.vala ../shotwell-0.30.7/src/dialogs/MultiTextEntryDialog.vala ../shotwell-0.30.7/src/dialogs/Preferences.vala ../shotwell-0.30.7/src/dialogs/ProgressDialog.vala ../shotwell-0.30.7/src/dialogs/SetBackgroundSlideshow.vala ../shotwell-0.30.7/src/dialogs/SetBackground.vala ../shotwell-0.30.7/src/dialogs/TextEntry.vala ../shotwell-0.30.7/src/dialogs/WelcomeDialog.vala ../shotwell-0.30.7/src/.unitize/_UnitInternals.vala ../shotwell-0.30.7/src/.unitize/_UtilInternals.vala ../shotwell-0.30.7/src/.unitize/_ThreadsInternals.vala ../shotwell-0.30.7/src/.unitize/_DbInternals.vala ../shotwell-0.30.7/src/.unitize/_EditingToolsInternals.vala ../shotwell-0.30.7/src/.unitize/_PluginsInternals.vala ../shotwell-0.30.7/src/.unitize/_SlideshowInternals.vala ../shotwell-0.30.7/src/.unitize/_PhotosInternals.vala ../shotwell-0.30.7/src/.unitize/_PublishingInternals.vala ../shotwell-0.30.7/src/.unitize/_LibraryInternals.vala ../shotwell-0.30.7/src/.unitize/_DirectInternals.vala ../shotwell-0.30.7/src/.unitize/_CoreInternals.vala ../shotwell-0.30.7/src/.unitize/_SidebarInternals.vala ../shotwell-0.30.7/src/.unitize/_EventsInternals.vala ../shotwell-0.30.7/src/.unitize/_TagsInternals.vala ../shotwell-0.30.7/src/.unitize/_CameraInternals.vala ../shotwell-0.30.7/src/.unitize/_SearchesInternals.vala ../shotwell-0.30.7/src/.unitize/_ConfigInternals.vala ../shotwell-0.30.7/src/.unitize/_DataImportsInternals.vala ../shotwell-0.30.7/src/.unitize/_FoldersInternals.vala ../shotwell-0.30.7/src/.unitize/_Library_unitize_entry.vala ../shotwell-0.30.7/src/.unitize/_Direct_unitize_entry.vala src/shotwell-graphics-processor.vapi src/plugins/shotwell-plugin-dev-1.0.vapi
sqlite3.vapi:34.59-34.76: warning: use of possibly unassigned parameter `errmsg'
public int exec (string sql, Callback? callback = null, out string? errmsg = null) {
^^^^^^^^^^^^^^^^^^
sqlite3.vapi:54.90-54.107: warning: use of possibly unassigned parameter `errmsg'
public int get_table (string sql, out string[] resultp, out int nrow, out int ncolumn, out string? errmsg = null) {
^^^^^^^^^^^^^^^^^^
Compilation failed: 0 error(s), 2 warning(s)
[49/292] Compiling C object 'plugins/authenticator/shotwell/9edcd89@@shotwell-authenticator@sha/meson-generated_FacebookPublishingAuthenticator.c.o'.
[50/292] Compiling C object 'plugins/authenticator/shotwell/9edcd89@@shotwell-authenticator@sha/meson-generated_FlickrPublishingAuthenticator.c.o'.
[51/292] Compiling C object 'plugins/shotwell-publishing-extras/a5ad6a9@@shotwell-publishing-extras@sha/meson-generated_GalleryConnector.c.o'.
[52/292] Compiling C object 'plugins/authenticator/shotwell/9edcd89@@shotwell-authenticator@sha/meson-generated_GoogleAuthenticator.c.o'.
[53/292] Linking target plugins/libshotwell-plugin-common.so.0.30.7.
ninja: build stopped: subcommand failed.It comes from vapi error, I am not sure whether the problem with Vala or Shotwell sources. Looking for a help here as I am not the Vala expert.