--- libcaca-0.99.beta20/caca/caca_internals.h.orig	2021-10-19 15:47:32.000000000 +0200
+++ libcaca-0.99.beta20/caca/caca_internals.h	2021-12-06 17:15:52.742419166 +0100
@@ -252,7 +252,11 @@ extern int _caca_getticks(caca_timer_t *
 /* Internal event functions */
 extern void _caca_handle_resize(caca_display_t *);
 #if defined(USE_SLANG) || defined(USE_NCURSES) || defined(USE_CONIO) || defined(USE_GL)
-extern void _push_event(caca_display_t *, caca_privevent_t *);
+extern
+#if defined(CACA_ENABLE_VISIBILITY)
+__attribute__((visibility("default")))
+#endif
+void _push_event(caca_display_t *, caca_privevent_t *);
 extern int _pop_event(caca_display_t *, caca_privevent_t *);
 #endif
 
--- libcaca-0.99.beta20/caca/driver/gl.c.orig	2015-01-17 12:51:01.000000000 +0100
+++ libcaca-0.99.beta20/caca/driver/gl.c	2021-12-06 17:16:26.072238603 +0100
@@ -604,6 +604,9 @@ static void gl_compute_font(caca_display
  * Driver initialisation
  */
 
+#if defined(CACA_ENABLE_VISIBILITY)
+__attribute__((visibility("default")))
+#endif
 int gl_install(caca_display_t *dp)
 {
 #if defined(HAVE_GETENV) && defined(GLUT_XLIB_IMPLEMENTATION)
--- libcaca-0.99.beta20/caca/driver/x11.c.orig	2017-04-21 15:33:16.000000000 +0200
+++ libcaca-0.99.beta20/caca/driver/x11.c	2021-12-06 17:17:57.918407696 +0100
@@ -966,6 +966,9 @@ static void x11_put_glyph(caca_display_t
  * Driver initialisation
  */
 
+#if defined(CACA_ENABLE_VISIBILITY)
+__attribute__((visibility("default")))
+#endif
 int x11_install(caca_display_t *dp)
 {
 #if defined HAVE_GETENV