From: Vladimír Čunát <vladimir.cunat@nic.cz>
Date: Mon, 17 Sep 2018 10:24:36 +0000 (+0200)
Subject: main: locally disable a gcc warning since !672
X-Git-Tag: v3.1.0~13^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f41ae54333e7bb2dee4e773005a32f0b182df445;p=thirdparty%2Fknot-resolver.git

main: locally disable a gcc warning since !672

I see no use to handle write() return codes in *this* function.
---

diff --git a/daemon/main.c b/daemon/main.c
index a414b2627..3981c8c9b 100644
--- a/daemon/main.c
+++ b/daemon/main.c
@@ -311,6 +311,9 @@ static void sigbus_handler(int sig, siginfo_t *siginfo, void *ptr)
 	 */
 	#define WRITE_ERR(err_charray) \
 		(void)write(STDERR_FILENO, err_charray, sizeof(err_charray))
+	/* Unfortunately, void-cast on the write isn't enough to avoid the warning. */
+	#pragma GCC diagnostic push
+	#pragma GCC diagnostic ignored "-Wunused-result"
 	const char msg_typical[] =
 		"\nSIGBUS received; this is most likely due to filling up the filesystem where cache resides.\n",
 		msg_unknown[] = "\nSIGBUS received, cause unknown.\n",
@@ -332,6 +335,7 @@ end:
 	WRITE_ERR(msg_final);
 	_exit(128 - sig); /*< regular return from OS-raised SIGBUS can't work anyway */
 	#undef WRITE_ERR
+	#pragma GCC diagnostic pop
 }
 
 /** Split away port from the address. */