From bfd0129b9108331379ef25ff032159bdfc253194 Mon Sep 17 00:00:00 2001
From: Victor Zverovich <viz@meta.com>
Date: Tue, 4 Nov 2025 08:53:26 -1000
Subject: [PATCH] Improve build speed

---
 include/fmt/base.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/fmt/base.h b/include/fmt/base.h
index a6a50012..774f260d 100644
--- a/include/fmt/base.h
+++ b/include/fmt/base.h
@@ -2755,7 +2755,9 @@ template <typename... T> struct fstring {
     static_assert(count<(is_view<remove_cvref_t<T>>::value &&
                          std::is_reference<T>::value)...>() == 0,
                   "passing views as lvalues is disallowed");
-    if (FMT_USE_CONSTEVAL) parse_format_string<char>(s, checker(s, arg_pack()));
+#ifdef FMT_USE_CONSTEVAL
+    parse_format_string<char>(s, checker(s, arg_pack()));
+#endif
 #ifdef FMT_ENFORCE_COMPILE_STRING
     static_assert(
         FMT_USE_CONSTEVAL && sizeof(s) != 0,