Bug xboard

[Joseph Lingess]

Dear all, 

after having migrated my notebook to macOS Catalina, I obtain the message 

> xboard -fcp "..."

2021-06-09 22:42:35.517 xboard[20772:1330940] *** WARNING: Method userSpaceScaleFactor in class NSView is deprecated on 10.7 and later. It should not be used in new applications. Use convertRectToBacking: instead. 

when starting xboard from the command line - and my chess program does not react on moves anymore. 

Do you have an idea how to proceed? 

Kind regards, 

Joseph

PS. Here the output of the version: 

> xboard -v

xboard version 4.9.1

  configure options: prefix=/usr/local/Cellar/xboard/4.9.1_3; datarootdir=/usr/local/Cellar/xboard/4.9.1_3/share; datadir=/usr/local/Cellar/xboard/4.9.1_3/share; gamedatadir=/usr/local/Cellar/xboard/4.9.1_3/share/games/xboard; desktopdir=/usr/local/Cellar/xboard/4.9.1_3/share/applications; mimedir=/usr/local/Cellar/xboard/4.9.1_3/share/mime/packages; iconsdir=/usr/local/Cellar/xboard/4.9.1_3/share/icons/hicolor/48x48/apps; svgiconsdir=/usr/local/Cellar/xboard/4.9.1_3/share/icons/hicolor/scalable/apps; infodir=/usr/local/Cellar/xboard/4.9.1_3/share/info; sysconfigdir=; update_mimedb=yes; NLS=yes; GTK=yes; Xaw3d=no; Xaw=no; ptys=pipes; zippy=no; sigint=yes