$NetBSD: patch-configure,v 1.5 2022/10/07 20:22:56 he Exp $

Portability.
Also, test whether we can do atomics on time_t,
not possible on 32-bit CPUs running NetBSD (where time_t is __int64_t)

--- configure.orig	2018-09-17 11:27:47.000000000 +0000
+++ configure
@@ -15579,7 +15579,7 @@ $as_echo "#define OS_AIX 1" >>confdefs.h
 
   ;;
 esac
- if test x$os_type == xapple; then
+ if test x$os_type = xapple; then
   OS_APPLE_TRUE=
   OS_APPLE_FALSE='#'
 else
@@ -15587,7 +15587,7 @@ else
   OS_APPLE_FALSE=
 fi
 
- if test x$os_type == xlinux; then
+ if test x$os_type = xlinux; then
   OS_LINUX_TRUE=
   OS_LINUX_FALSE='#'
 else
@@ -15595,7 +15595,7 @@ else
   OS_LINUX_FALSE=
 fi
 
- if test x$os_type == xaix; then
+ if test x$os_type = xaix; then
   OS_AIX_TRUE=
   OS_AIX_FALSE='#'
 else
@@ -17265,40 +17265,54 @@ else
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
+#include <sys/types.h>
 
 int main()
 {
     unsigned long val = 1010, tmp, *mem = &val;
+    time_t tval = 1010, ttmp, *tmem = &tval;
+
 
     if (__sync_fetch_and_add(&val, 1010) != 1010 || val != 2020)
         return 1;
-
     tmp = val;
-
     if (__sync_fetch_and_sub(mem, 1010) != tmp || val != 1010)
         return 1;
-
     if (__sync_sub_and_fetch(&val, 1010) != 0 || val != 0)
         return 1;
-
     tmp = 3030;
-
     if (__sync_val_compare_and_swap(mem, 0, tmp) != 0 || val != tmp)
         return 1;
-
     if (__sync_lock_test_and_set(&val, 4040) != 3030)
         return 1;
-
     mem = &tmp;
-
     if (__sync_val_compare_and_swap(&mem, &tmp, &val) != &tmp)
         return 1;
 
+    if (__sync_fetch_and_add(&tval, 1010) != 1010 || tval != 2020)
+        return 1;
+    ttmp = tval;
+    if (__sync_fetch_and_sub(tmem, 1010) != ttmp || tval != 1010)
+        return 1;
+    if (__sync_sub_and_fetch(&tval, 1010) != 0 || tval != 0)
+        return 1;
+    ttmp = 3030;
+    if (__sync_val_compare_and_swap(tmem, 0, ttmp) != 0 || tval != ttmp)
+        return 1;
+    if (__sync_lock_test_and_set(&tval, 4040) != 3030)
+        return 1;
+    tmem = &ttmp;
+    if (__sync_val_compare_and_swap(&tmem, &ttmp, &tval) != &ttmp)
+        return 1;
+
     __sync_synchronize();
 
     if (mem != &val)
         return 1;
 
+    if (tmem != &tval)
+        return 1;
+
     return 0;
 }
 _ACEOF