Fixed build on systems where timezone is not an integer type variable.

git-svn-id: http://voip.null.ro/svn/yate@5944 acf43c95-373e-0410-b603-e72c3f656dc1

configure.in

@@ -191,6 +191,20 @@ HAVE_GMTOFF="-DHAVE_GMTOFF"
 fi
 AC_SUBST(HAVE_GMTOFF)
 
+HAVE_INT_TZ=""
+AC_MSG_CHECKING([for integer timezone variable])
+have_tzint="no"
+AC_TRY_COMPILE([
+#include <time.h>
+],[
+long tz = -timezone;
+],have_tzint="yes")
+AC_MSG_RESULT([$have_tzint])
+if [[ "$have_tzint" = "yes" ]]; then
+HAVE_INT_TZ="-DHAVE_INT_TZ"
+fi
+AC_SUBST(HAVE_INT_TZ)
+
 HAVE_POLL=no
 AC_ARG_ENABLE(poll,AC_HELP_STRING([--enable-poll],[Use poll() on sockets (default: yes)]),want_poll=$enableval,want_poll=yes)
 if [[ "x$want_poll" = "xyes" ]]; then

engine/Makefile.in

@@ -113,7 +113,7 @@ Thread.o: @srcdir@/Thread.cpp $(MKDEPS) $(CINC)
 	$(COMPILE) @THREAD_KILL@ @HAVE_PRCTL@ -c $<
 
 TelEngine.o: @srcdir@/TelEngine.cpp $(MKDEPS) $(CINC)
-	$(COMPILE) @ATOMIC_OPS@ @HAVE_GMTOFF@ -c $<
+	$(COMPILE) @ATOMIC_OPS@ @HAVE_GMTOFF@ @HAVE_INT_TZ@ -c $<
 
 Client.o: @srcdir@/Client.cpp $(MKDEPS) $(CLINC)
 	$(COMPILE) -c $<

engine/TelEngine.cpp

@@ -847,7 +847,11 @@ int Time::timeZone()
     if (localtime_r(&time,&t))
 	return t.tm_gmtoff;
 #endif
+#ifdef HAVE_INT_TZ
     return -timezone;
+#else
+    return 0;
+#endif
 #endif
 }