define a font-size for the "unicode" message box font so the text isn't unreadable on linux systems
diff --git a/src/video/x11/SDL_x11messagebox.c b/src/video/x11/SDL_x11messagebox.c
index 1fb936a..a3dcc65 100644
--- a/src/video/x11/SDL_x11messagebox.c
+++ b/src/video/x11/SDL_x11messagebox.c
@@ -48,7 +48,7 @@
#define MIN_DIALOG_HEIGHT 100 /* Minimum dialog height */
static const char g_MessageBoxFontLatin1[] = "-*-*-medium-r-normal--0-120-*-*-p-0-iso8859-1";
-static const char g_MessageBoxFont[] = "-*-*-*-*-*-*-*-*-*-*-*-*-*-*";
+static const char g_MessageBoxFont[] = "-*-*-*-*-*-*-*-120-*-*-*-*-*-*";
static const SDL_MessageBoxColor g_default_colors[ SDL_MESSAGEBOX_COLOR_MAX ] = {
{ 56, 54, 53 }, /* SDL_MESSAGEBOX_COLOR_BACKGROUND, */