test if clist->title_window exists before showing it,
test if clist->title_window exists before showing it,

Wed Mar 18 01:07:11 1998  Radek Doulik  <rodo@aquarius>

	* gtk/gtkclist.c (gtk_clist_column_titles_show): test if
	clist->title_window exists before showing it,
	gtk_clist_column_titles_hide also fixed

davidgumberg/gtk,bratsche/gtk-,simokivimaki/gtk,alexlarsson/gtk,Lyude/gtk-,alexlarsson/gtk,Distrotech/gtk,chipx86/gtk,alexlarsson/gtk,jadahl/gtk,chipx86/gtk,chergert/gtk,jigpu/gtk,Adamovskiy/gtk,davidgumberg/gtk,grubersjoe/adwaita,Adamovskiy/gtk,ahodesuka/gtk,davidgumberg/gtk,chipx86/gtk,Distrotech/gtk2,msteinert/gtk,Distrotech/gtk2,ahodesuka/gtk,alexlarsson/gtk,nacho/gtk-,jessevdk/gtk,jadahl/gtk,Distrotech/gtk2,simokivimaki/gtk,ahodesuka/gtk,grubersjoe/adwaita,simokivimaki/gtk,ebassi/gtk,Adamovskiy/gtk,Unity-Technologies/gtk,Distrotech/gtk,grubersjoe/adwaita,jadahl/gtk,davidt/gtk,jadahl/gtk,davidt/gtk,davidt/gtk,ebassi/gtk,davidt/gtk,Adamovskiy/gtk,jigpu/gtk,jessevdk/gtk,msteinert/gtk,Lyude/gtk-,jessevdk/gtk,Sidnioulz/SandboxGtk,grubersjoe/adwaita,simokivimaki/gtk,Distrotech/gtk,chipx86/gtk,jessevdk/gtk,alexlarsson/gtk,johne53/MB3Gtk-2,Distrotech/gtk,grubersjoe/adwaita,grubersjoe/adwaita,chergert/gtk,Sidnioulz/SandboxGtk,Distrotech/gtk2,msteinert/gtk,ahodesuka/gtk,nacho/gtk-,zsx/gtk,jigpu/gtk,zsx/gtk,grubersjoe/adwaita,ebassi/gtk,jadahl/gtk,Unity-Technologies/gtk,ahodesuka/gtk,Sidnioulz/SandboxGtk,davidgumberg/gtk,Sidnioulz/SandboxGtk,davidgumberg/gtk,davidgumberg/gtk,jadahl/gtk,bratsche/gtk-,Lyude/gtk-,Sidnioulz/SandboxGtk,jessevdk/gtk,msteinert/gtk,bratsche/gtk-,jessevdk/gtk,johne53/MB3Gtk-2,chipx86/gtk,Lyude/gtk-,grubersjoe/adwaita,Distrotech/gtk2,nacho/gtk-,Unity-Technologies/gtk,johne53/MB3Gtk-2,bratsche/gtk-,Distrotech/gtk2,zsx/gtk,Lyude/gtk-,ahodesuka/gtk,jadahl/gtk,jigpu/gtk,simokivimaki/gtk,Distrotech/gtk,jadahl/gtk,jigpu/gtk,davidt/gtk,Lyude/gtk-,jigpu/gtk,chergert/gtk,davidgumberg/gtk,Unity-Technologies/gtk,chergert/gtk,Lyude/gtk-,Adamovskiy/gtk,zsx/gtk,bratsche/gtk-,Lyude/gtk-,chergert/gtk,msteinert/gtk,chergert/gtk,zsx/gtk,Adamovskiy/gtk,simokivimaki/gtk,Sidnioulz/SandboxGtk,ebassi/gtk,bratsche/gtk-,jessevdk/gtk,alexlarsson/gtk,ahodesuka/gtk,alexlarsson/gtk,davidgumberg/gtk,ebassi/gtk,chergert/gtk,johne53/MB3Gtk-2,ebassi/gtk,ahodesuka/gtk,jigpu/gtk,jigpu/gtk,msteinert/gtk,Adamovskiy/gtk,johne53/MB3Gtk-2,alexlarsson/gtk,Unity-Technologies/gtk,Adamovskiy/gtk,nacho/gtk-,davidt/gtk,chergert/gtk,nacho/gtk-