[gcc r15-3819] libstdc++: Remove unnecessary 'static' from __is_specialization_of

[Nathaniel Shead]

https://gcc.gnu.org/g:618871ff09c07817f7ce9b2bd7338cd3299ad8f5

commit r15-3819-g618871ff09c07817f7ce9b2bd7338cd3299ad8f5
Author: Nathaniel Shead <nathanieloshead@gmail.com>
Date:   Tue Sep 10 22:05:40 2024 +1000

    libstdc++: Remove unnecessary 'static' from __is_specialization_of
    
    This makes the declarations internal linkage, which is an ODR issue, and
    causes a future modules patch to fail regtest as it now detects attempted
    uses of TU-local entities in module CMIs.
    
    libstdc++-v3/ChangeLog:
    
            * include/std/format: Remove unnecessary 'static'.
    
    Signed-off-by: Nathaniel Shead <nathanieloshead@gmail.com>

Diff:
---
 libstdc++-v3/include/std/format | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/libstdc++-v3/include/std/format b/libstdc++-v3/include/std/format
index 100a53dfd76f..1e9a8374012d 100644
--- a/libstdc++-v3/include/std/format
+++ b/libstdc++-v3/include/std/format
@@ -365,10 +365,9 @@ namespace __format
 
 /// @cond undocumented
   template<typename _Tp, template<typename...> class _Class>
-    static constexpr bool __is_specialization_of = false;
+    constexpr bool __is_specialization_of = false;
   template<template<typename...> class _Class, typename... _Args>
-    static constexpr bool __is_specialization_of<_Class<_Args...>, _Class>
-      = true;
+    constexpr bool __is_specialization_of<_Class<_Args...>, _Class> = true;
 
 namespace __format
 {