runtime/cgo: annotate unused variable with __attribute__((unused))

Fixes #28095

Change-Id: Id8668d52986c9805213e8847f49fe42dfde2e01a
Reviewed-on: https://go-review.googlesource.com/c/140797
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

diff --git a/src/runtime/cgo/gcc_libinit.c b/src/runtime/cgo/gcc_libinit.c
index 3dc5bde4ccb99369b8283ea078897adf0e70d6d3..3dafd10b7bc2965de4753393c235b7f6b94bafce 100644 (file)
--- a/src/runtime/cgo/gcc_libinit.c
+++ b/src/runtime/cgo/gcc_libinit.c
@@ -63,7 +63,7 @@ _cgo_wait_runtime_init_done() {
 }
 
 void
-x_cgo_notify_runtime_init_done(void* dummy) {
+x_cgo_notify_runtime_init_done(void* dummy __attribute__ ((unused))) {
        pthread_mutex_lock(&runtime_init_mu);
        runtime_init_done = 1;
        pthread_cond_broadcast(&runtime_init_cond);