From f5ca0fcf6ad3e0702c77002436a93f3213c394dd Mon Sep 17 00:00:00 2001
From: Kitzunu <24550914+Kitzunu@users.noreply.github.com>
Date: Thu, 3 Feb 2022 23:04:51 +0100
Subject: [PATCH] Update Duration.h

---
 src/common/Utilities/Duration.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/common/Utilities/Duration.h b/src/common/Utilities/Duration.h
index 6fcfbf6644..1486372bcd 100644
--- a/src/common/Utilities/Duration.h
+++ b/src/common/Utilities/Duration.h
@@ -49,7 +49,7 @@ using Years = std::chrono::years;
 using Months = std::chrono::months;
 
 // Fix GCC for C++20
-#if GCC_VERSION
+#if AC_COMPILER == AC_COMPILER_GNU
 /// days
 using Days = std::chrono::duration<_GLIBCXX_CHRONO_INT64_T, ratio<86400>>;
 
@@ -62,7 +62,7 @@ using Years = std::chrono::duration<_GLIBCXX_CHRONO_INT64_T, ratio<31556952>>;
 /// months
 using Months = std::chrono::duration<_GLIBCXX_CHRONO_INT64_T, ratio<2629746>>;
 
-#endif // GCC_VERSION
+#endif // AC_COMPILER_GNU
 
 #else
 /// Days shorthand typedef. (delete after start support c++20)