From 5fc9e0f4acbb0647b6564d091257340b4ce800f1 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 13 Apr 2024 10:56:12 +0200 Subject: Merging upstream version 1.24.5. Signed-off-by: Daniel Baumann --- lib/warn-on-use.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'lib/warn-on-use.h') diff --git a/lib/warn-on-use.h b/lib/warn-on-use.h index 3075603..701013a 100644 --- a/lib/warn-on-use.h +++ b/lib/warn-on-use.h @@ -1,5 +1,5 @@ /* A C macro for emitting warnings if a function is used. - Copyright (C) 2010-2023 Free Software Foundation, Inc. + Copyright (C) 2010-2024 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published @@ -32,6 +32,10 @@ _GL_WARN_ON_USE_ATTRIBUTE is for functions with 'static' or 'inline' linkage. + _GL_WARN_ON_USE should not be used more than once for a given function + in a given compilation unit (because this may generate a warning even + if the function is never called). + However, one of the reasons that a function is a portability trap is if it has the wrong signature. Declaring FUNCTION with a different signature in C is a compilation error, so this macro must use the -- cgit v1.2.3