<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">--- configure.orig	2021-03-16 00:55:15.000000000 +1100
+++ configure	2021-03-16 01:09:57.000000000 +1100
@@ -10716,13 +10716,13 @@
       void *foo(void *parm) {
         return NULL;
       }
-      main() {
+      int main() {
         pthread_attr_t attr;
         pthread_t id;
-        if (pthread_attr_init(&amp;attr)) exit(-1);
-        if (pthread_attr_setscope(&amp;attr, PTHREAD_SCOPE_SYSTEM)) exit(-1);
-        if (pthread_create(&amp;id, &amp;attr, foo, NULL)) exit(-1);
-        exit(0);
+        if (pthread_attr_init(&amp;attr)) return (-1);
+        if (pthread_attr_setscope(&amp;attr, PTHREAD_SCOPE_SYSTEM)) return (-1);
+        if (pthread_create(&amp;id, &amp;attr, foo, NULL)) return (-1);
+        return (0);
       }
 _ACEOF
 if ac_fn_c_try_run "$LINENO"; then :
@@ -14473,7 +14473,7 @@
   int main()
   {
 	/* Success: exit code 0 */
-        exit((((wchar_t) -1) &lt; ((wchar_t) 0)) ? 0 : 1);
+        return ((((wchar_t) -1) &lt; ((wchar_t) 0)) ? 0 : 1);
   }
 
 _ACEOF
@@ -14791,7 +14791,7 @@
 
 int main()
 {
-	exit(((-1)&gt;&gt;3 == -1) ? 0 : 1);
+	return (((-1)&gt;&gt;3 == -1) ? 0 : 1);
 }
 
 _ACEOF
@@ -15262,12 +15262,16 @@
   cat confdefs.h - &lt;&lt;_ACEOF &gt;conftest.$ac_ext
 /* end confdefs.h.  */
 
+#if HAVE_UNISTD_H
+#include &lt;unistd.h&gt;
+#endif
+
 int main()
 {
 	int val1 = nice(1);
 	if (val1 != -1 &amp;&amp; val1 == nice(2))
-		exit(0);
-	exit(1);
+		return (0);
+	return (1);
 }
 
 _ACEOF
@@ -15303,6 +15307,9 @@
 /* end confdefs.h.  */
 
 #include &lt;poll.h&gt;
+#if HAVE_UNISTD_H
+#include &lt;unistd.h&gt;
+#endif
 
 int main()
 {
</pre></body></html>