diff -Nur boost_1_35_0/boost/date_time/gregorian/greg_weekday.hpp boost_1_35_0.patched/boost/date_time/gregorian/greg_weekday.hpp
--- boost_1_35_0/boost/date_time/gregorian/greg_weekday.hpp	2008-02-27 14:00:24.000000000 +0100
+++ boost_1_35_0.patched/boost/date_time/gregorian/greg_weekday.hpp	2008-04-29 16:48:55.433030500 +0200
@@ -31,7 +31,7 @@
   //! Exception that flags that a weekday number is incorrect
   struct bad_weekday : public std::out_of_range
   {
-    bad_weekday() : std::out_of_range(std::string("Weekday os out of range 0..6")) {}
+    bad_weekday() : std::out_of_range(std::string("Weekday is out of range 0..6")) {}
   };
   typedef CV::simple_exception_policy<unsigned short, 0, 6, bad_weekday> greg_weekday_policies;
   typedef CV::constrained_value<greg_weekday_policies> greg_weekday_rep;