demos: Mark non-static signal handler symbols for export
authorChun-wei Fan <fanchunwei@src.gnome.org>
Thu, 6 May 2021 09:21:46 +0000 (17:21 +0800)
committerChun-wei Fan <fanchunwei@src.gnome.org>
Fri, 7 May 2021 02:38:02 +0000 (10:38 +0800)
commitefb875daef4bba06c211a92c5ef4aa31d0f6b313
treeb9c7e9e55929369c9193fa0d9252107f6d12d81c
parent59cc3a9f86eeeb91feb997af298dda79dd01eb37
demos: Mark non-static signal handler symbols for export

The symbols in the .ui files for the signal handlers and functions must be
exported so that the system can pick them up during execution.

Fixes #3918.
demos/gtk-demo/font_features.c
demos/gtk-demo/listview_filebrowser.c
demos/gtk-demo/shortcuts.c
demos/gtk-demo/spinbutton.c