silence some compiler warnings

Actually, most of this commit is adding (void) to various function returns
where we know its ok to ignore the return value. This doesn't actually
silence the -Wunused-result warning (thanks a bundle gcc), but at least
it marks our intentions.

1 files changed, 2 insertions, 2 deletions

diff --git a/perlio.c b/perlio.c
index 279b52986c..60b6a596f0 100644
--- a/perlio.c
+++ b/perlio.c
@@ -463,7 +463,7 @@ PerlIO_debug(const char *fmt, ...)
 	char buffer[1024];
 	const STRLEN len1 = my_snprintf(buffer, sizeof(buffer), "%.40s:%" IVdf " ", s ? s : "(none)", (IV) CopLINE(PL_curcop));
 	const STRLEN len2 = my_vsnprintf(buffer + len1, sizeof(buffer) - len1, fmt, ap);
-	PerlLIO_write(PL_perlio_debug_fd, buffer, len1 + len2);
+	(void)PerlLIO_write(PL_perlio_debug_fd, buffer, len1 + len2);
 #else
 	const char *s = CopFILE(PL_curcop);
 	STRLEN len;
@@ -472,7 +472,7 @@ PerlIO_debug(const char *fmt, ...)
 	Perl_sv_vcatpvf(aTHX_ sv, fmt, &ap);
 
 	s = SvPV_const(sv, len);
-	PerlLIO_write(PL_perlio_debug_fd, s, len);
+	(void)PerlLIO_write(PL_perlio_debug_fd, s, len);
 	SvREFCNT_dec(sv);
 #endif
     }