Fix potential crash when attempting to free default font

Before setting a new font we try to free the existing font. Sadly if no
config value is set for the default font, we assign a string literal.
Which of course means that subsurface dumps core when trying to free it.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/linux.c b/linux.c
index 4e7e61c7c..f60f9179c 100644
--- a/linux.c
+++ b/linux.c
@@ -88,7 +88,7 @@ void subsurface_ui_setup(GtkSettings *settings, GtkWidget *menubar,
 		GtkWidget *vbox, GtkUIManager *ui_manager)
 {
 	if (!divelist_font)
-		divelist_font = DIVELIST_DEFAULT_FONT;
+		divelist_font = strdup(DIVELIST_DEFAULT_FONT);
 	gtk_box_pack_start(GTK_BOX(vbox), menubar, FALSE, FALSE, 0);
 }