[PATCH v2 10/20] include/glib-compat.h: Poison g_list_sort and g_slist_sort

[Kohei Tokunaga]

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>
---
 include/glib-compat.h | 6 ++++++
 1 file changed, 6 insertions(+)

V2:
- Fixed typo in the comment: s/insted/instead/
- Updated the commit message to explicitly explain that function pointer
  casts are performed internally by GLib.

diff --git a/include/glib-compat.h b/include/glib-compat.h
index 86be439ba0..53f8ea38d3 100644
--- a/include/glib-compat.h
+++ b/include/glib-compat.h
@@ -36,6 +36,12 @@
 #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
-- 
2.25.1