From 0e2e1bf8d0fb1662f51678ac1e9346ff21f33a21 Mon Sep 17 00:00:00 2001
From: sha512sum <linuxnyasha@tutanota.com>
Date: Sun, 7 Jul 2024 22:59:15 +0000
Subject: [PATCH] Use custom IsConstant instead __builtin_constant_p

---
 include/cserver/engine/components.hpp | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/include/cserver/engine/components.hpp b/include/cserver/engine/components.hpp
index 3592ac7..ae6ff39 100644
--- a/include/cserver/engine/components.hpp
+++ b/include/cserver/engine/components.hpp
@@ -334,9 +334,26 @@ namespace impl {
 template <typename Current, std::size_t I>
 struct DependencyInfoKey {};
 
+template <auto F>
+consteval auto IsConstantImpl(...) {
+  return false;
+};
+
+template <auto F, auto = (F(), 1)>
+consteval auto IsConstantImpl(bool) {
+  return true;
+};
+
+template <auto F>
+consteval auto IsConstant() -> bool {
+  return IsConstantImpl<F>(true);  // NOLINT
+};
+
 template <typename T, auto... Args>
 inline constexpr auto Use() {
-  std::ignore = __builtin_constant_p(T{Args...});
+  std::ignore = IsConstant<[] {
+    T{Args...};
+  }>();
 };
 
 template <typename...>