Hi all, Looks like gcc 4.3 has some rather inconvenient changes in C++ FE, with the latest trunk. Lets see with an example :
[~]> cat test.cpp #define foo bar #define foo baz [~]> g++ -c test.cpp test.cpp:2:1: error: "foo" redefined test.cpp:1:1: error: this is the location of the previous definition I don't know the reasoning behind this change but this breaks many C++ programs unless -fpermissive is used. Why? Because everybody loves to install their own config.h (Python, libmp4v2 being nice examples) which just carelessly #define anything its asked for with ifndef ... endif . Now flash back to real world: this breaks any C++ application that uses Python, libmp4v2, libjpeg and possibly many others. And I think this is a real bad behaviour change and I am not sure if its worth all the trouble. So I am asking, would C++ FE maintainers would agree to revert this into a warning as in C FE now. I welcome and value your comments, so please speak up. Regards, ismail -- Never learn by your mistakes, if you do you may never dare to try again.
