[Boost-users] Argument error after upgrading to Snow Leopard

Hi, after upgrading to Snow Leopard I get following error message compiling even a simple Hello World program with bjam: *** argument error * rule SHELL ( command : * ) * called with: ( ) * missing argument command (builtin):see definition of rule 'SHELL' being called ... The .cpp file is: #include <iostream> int main() { cout "Hello World!" << endl; return 0; } The Jamroot file contains: exe HelloWorld : HelloWorld.cpp ; I have: - bjam installed in /usr/local/bin - boost-build libraries in /usr/share/boost-build - in /usr/share/boost-build/user-config.jam the line: using darwin; This is as far as I know exactly the same as I had it under Leopard. What am I missing here? Thanks. Markus