From 12af712d116f42164bcfa56db901d06e4fa27199 Mon Sep 17 00:00:00 2001
From: Sam James <sam@gentoo.org>
Date: Sun, 6 Nov 2022 04:52:38 +0000
Subject: configure.ac: Fix -Wstrict-prototypes

Clang 16 now warns on this and it'll be removed in C23, so let's
just be future proof. It also reduces noise when doing general
Clang 16 porting work (which is a big job as it is).  github PR#355.

Signed-off-by: Sam James <sam@gentoo.org>
---
 configure.ac | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 1866aea5..4bf758ac 100644
--- a/configure.ac
+++ b/configure.ac
@@ -713,7 +713,7 @@ case "$host" in
 	AC_RUN_IFELSE([AC_LANG_SOURCE([[
 #include <mach-o/dyld.h>
 #include <stdlib.h>
-int main() { if (NSVersionOfRunTimeLibrary("System") >= (60 << 16))
+int main(void) { if (NSVersionOfRunTimeLibrary("System") >= (60 << 16))
 		exit(0);
 	else
 		exit(1);
@@ -1658,7 +1658,7 @@ AC_ARG_WITH(ldns,
 # include <stdint.h>
 #endif
 #include <ldns/ldns.h>
-int main() { ldns_status status = ldns_verify_trusted(NULL, NULL, NULL, NULL); status=LDNS_STATUS_OK; exit(0); }
+int main(void) { ldns_status status = ldns_verify_trusted(NULL, NULL, NULL, NULL); status=LDNS_STATUS_OK; exit(0); }
 			]])
 		],
 			[AC_MSG_RESULT(yes)],
@@ -4262,7 +4262,7 @@ dnl test snprintf (broken on SCO w/gcc)
 #include <stdlib.h>
 #include <string.h>
 #ifdef HAVE_SNPRINTF
-int main()
+int main(void)
 {
 	char buf[50];
 	char expected_out[50];
@@ -4279,7 +4279,7 @@ int main()
 	exit(0);
 }
 #else
-int main() { exit(0); }
+int main(void) { exit(0); }
 #endif
 		]])], [ true ], [ AC_DEFINE([BROKEN_SNPRINTF]) ],
 		AC_MSG_WARN([cross compiling: Assuming working snprintf()])
-- 
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