From 1ade2b8e517f7f0e404afd5dd90962e34d92b4aa Mon Sep 17 00:00:00 2001
From: DeeJayLSP <djlsp@proton.me>
Date: Wed, 13 May 2026 19:39:37 -0300
Subject: [PATCH] Suppress GCC 16's `sfinae-incomplete` warning

---
 SConstruct | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/SConstruct b/SConstruct
index 921a5736f9a..d8d930106ba 100644
--- a/SConstruct
+++ b/SConstruct
@@ -986,6 +986,9 @@ else:  # GCC, Clang
             common_warnings += ["-Wno-return-type"]
         if cc_version_major >= 11:
             common_warnings += ["-Wenum-conversion"]
+        if cc_version_major >= 16:
+            # GCC 16 flags type-incompleteness assertions on their intended behavior, see GH-119269.
+            env.AppendUnique(CXXFLAGS=["-Wno-sfinae-incomplete"])
     elif methods.using_clang(env) or methods.using_emcc(env):
         common_warnings += ["-Wshadow-field-in-constructor", "-Wshadow-uncaptured-local"]
         # We often implement `operator<` for structs of pointers as a requirement