include/glib-compat.h: Poison g_list_sort and g_slist_sort

On Emscripten, function pointer casts can result in runtime failures due to
strict function signature checks. This affects the use of g_list_sort and
g_slist_sort, which internally perform function pointer casts that are not
supported by Emscripten. To avoid these issues, g_list_sort_with_data and
g_slist_sort_with_data should be used instead, as they do not rely on
function pointer casting.

Signed-off-by: Kohei Tokunaga <ktokunaga.mail@gmail.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Link: https://lore.kernel.org/r/fa57c8069d6c723f5b947560677f4ca596334330.1745820062.git.ktokunaga.mail@gmail.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/include/glib-compat.h b/include/glib-compat.h
index 86be439ba0efaced4c1c8251e5b336f46a04b516..2e32b90f05151bceec736191dfb88f75cb3a66a9 100644 (file)
--- a/include/glib-compat.h
+++ b/include/glib-compat.h
@@ -36,6 +36,13 @@
 #include <pwd.h>
 #endif
 
+/*
+ * These functions perform function pointer casts which can cause function call
+ * failure on Emscripten. Use g_slist_sort_with_data and g_list_sort_with_data
+ * instead of these functions.
+ */
+#pragma GCC poison g_slist_sort g_list_sort
+
 /*
  * Note that because of the GLIB_VERSION_MAX_ALLOWED constant above, allowing
  * use of functions from newer GLib via this compat header needs a little