https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116729
Bug ID: 116729
Summary: [[maybe_unused]] doesn't prevent warning for unused
function declarations
Product: gcc
Version: 14.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: himehaieto at gmail dot com
Target Milestone: ---
Created attachment 59118
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=59118&action=edit
unused.i
In the attached code are two unused functions annotated with [[maybe_unused]] -
one that is fully defined, and the other that is simply a forward declaration.
The warning is properly suppressed for the defined function, but not the
declared one. Both warnings are successfully suppressed when compiling with
clang. Additional reproducibility information is included below.
`uname -a`:
Linux votocon 4.19.0-21-amd64 #1 SMP Debian 4.19.249-2 (2022-06-30) x86_64
GNU/Linux
`lsb_release -a`:
Distributor ID: Devuan
Description: Devuan GNU/Linux 5 (daedalus)
Release: 5
Codename: daedalus
gcc configure options:
../../configure --prefix=/opt/gcc/14.2.0 --enable-lto
compiler command/options:
gcc --std=c23 -Wall unused.c
