[committed] libstdc++: Use [[maybe_unused]] attribute in src/c++23/print.cc

[Jonathan Wakely]

Tested x86_64-linux, built on avr.

Pushed to trunk.

-- >8 --

This avoids some warnings when the preprocessor conditions are not met.

libstdc++-v3/ChangeLog:

        * src/c++23/print.cc (__open_terminal): Use [[maybe_unused]] on
        parameter.
---
 libstdc++-v3/src/c++23/print.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libstdc++-v3/src/c++23/print.cc b/libstdc++-v3/src/c++23/print.cc
index 558dc149d12..8ba71405967 100644
--- a/libstdc++-v3/src/c++23/print.cc
+++ b/libstdc++-v3/src/c++23/print.cc
@@ -67,7 +67,7 @@ namespace
   // This returns intptr_t that is either a Windows HANDLE
   // or 1 + a POSIX file descriptor. A zero return indicates failure.
   void*
-  __open_terminal(FILE* f)
+  __open_terminal([[maybe_unused]] FILE* f)
   {
 #ifndef _GLIBCXX_USE_STDIO_PURE
     if (f)
@@ -85,7 +85,7 @@ namespace
   }
 
   void*
-  __open_terminal(std::streambuf* sb)
+  __open_terminal([[maybe_unused]] std::streambuf* sb)
   {
 #if ! defined _GLIBCXX_USE_STDIO_PURE && defined __cpp_rtti
     using namespace __gnu_cxx;
-- 
2.45.2