handle systems that don't take a 2nd argument to gettimeofday()

Makefile.in

@@ -64,7 +64,7 @@ rsyncd.conf.5: rsyncd.conf.yo
 	yodl2man -o rsyncd.conf.5 rsyncd.conf.yo
 
 proto:
-	cat *.c | awk -f mkproto.awk > proto.h
+	cat *.c lib/compat.c | awk -f mkproto.awk > proto.h
 
 clean:
 	rm -f *~ $(OBJS) rsync 

acconfig.h

@@ -10,3 +10,4 @@
 #undef HAVE_SHORT_INO_T
 #undef HAVE_GETOPT_LONG
 #undef REPLACE_INET_NTOA
+#undef HAVE_GETTIMEOFDAY_TZ

authenticate.c

@@ -56,7 +56,7 @@ static void gen_challenge(char *addr, char *challenge)
 	memset(input, 0, sizeof(input));
 
 	strlcpy((char *)input, addr, 17);
-	gettimeofday(&tv, NULL);
+	sys_gettimeofday(&tv);
 	SIVAL(input, 16, tv.tv_sec);
 	SIVAL(input, 20, tv.tv_usec);
 	SIVAL(input, 24, getpid());

configure.in

@@ -135,6 +135,17 @@ if test x"$rsync_cv_HAVE_UTIMBUF" = x"yes"; then
     AC_DEFINE(HAVE_UTIMBUF)
 fi
 
+AC_CACHE_CHECK([if gettimeofday takes tz argument],rsync_cv_HAVE_GETTIMEOFDAY_TZ,[
+AC_TRY_RUN([
+#include <sys/time.h>
+#include <unistd.h>
+main() { struct timeval tv; exit(gettimeofday(&tv, NULL));}],
+           rsync_cv_HAVE_GETTIMEOFDAY_TZ=yes,rsync_cv_HAVE_GETTIMEOFDAY_TZ=no,rsync_cv_HAVE_GETTIMEOFDAY_TZ=cross)])
+if test x"$rsync_cv_HAVE_GETTIMEOFDAY_TZ" = x"yes"; then
+    AC_DEFINE(HAVE_GETTIMEOFDAY_TZ)
+fi
+
+
 AC_CACHE_CHECK([for broken inet_ntoa],rsync_cv_REPLACE_INET_NTOA,[
 AC_TRY_RUN([
 #include <stdio.h>

lib/compat.c

@@ -161,3 +161,13 @@
 	return 1;
 }
 #endif
+
+/* some systems don't take the 2nd argument */
+int sys_gettimeofday(struct timeval *tv)
+{
+#if HAVE_GETTIMEOFDAY_TZ
+	return gettimeofday(tv, NULL);
+#else
+	return gettimeofday(tv);
+#endif
+}