With this we are g++ -Wunused-* clean.

1 files changed, 6 insertions, 0 deletions

diff --git a/mg.c b/mg.c
index bd09ff6382..3a0f18b3b0 100644
--- a/mg.c
+++ b/mg.c
@@ -1363,6 +1363,12 @@ Perl_csighandler(int sig)
 #else
     dTHX;
 #endif
+#if defined(__cplusplus) && defined(__GNUC__)
+    /* g++ doesn't support PERL_UNUSED_DECL, so the sip and uap
+     * parameters would be warned about. */
+    PERL_UNUSED_ARG(sip);
+    PERL_UNUSED_ARG(uap);
+#endif
 #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS
     (void) rsignal(sig, PL_csighandlerp);
     if (PL_sig_ignoring[sig]) return;