Why do you add those paths manually? Our CC's parser will automatically call the GCC command with the "-E" option, and grab the GCC's search paths.
If you have enabled the C++11, then CC will call GCC command with the C++11 option.
Maybe, you may see the bug here Re: Release 15.12, RC1 has arrived, I'm going to commit a fix soon.
Thanks for the tip. I added the paths and kept them there back in some old days when CC couldn't even sometimes locate the C++ headers. It used to work until I updated my compiler toolchain and the IDE. It looks like things have changed, maybe somehow improved as removing them actually solves my old and new problems here. I might give the latest svn a try when I get the time to.
