Major upgrade to Boost.Config symbol visibility macros for shared libraries, based on patches from Jürgen Hunold with mods by Beman Dawes. Upgrade Boost.System to use the new visibility macros. Fixes #3697 and provides foundation for fixing 2114, 2309, etc.

[SVN r62140]

test/initialization_test.cpp

@@ -10,7 +10,7 @@
 //  This test verifiies that the error_category vtable does not suffer from
 //  order-of-initialization problems.
 
-#include <boost/test/minimal.hpp>
+#include <boost/detail/lightweight_test.hpp>
 #include <boost/system/error_code.hpp>
 
 struct foo
@@ -22,7 +22,7 @@ struct foo
   }
 } f;
 
-int test_main( int, char ** )
+int main( int, char ** )
 {
        return 0;
 }