Building CLang via g++ fails
 

Hi,
I may be in the wrong forum, so if soneone can tell me where I can go to get this specialised information.
I'm trying to build CLang from sources. I'm in Ubuntu. I just updated my compilers to g++4.8 and gcc4.8 , but this appears to be not enough because during compilation I get messages like this:
error: 'enable_if' in namespace std does not name a type
typename std::enable_if<....

This appears to me to be a problem that my library is not recent enough.

g++ --version does report 4.8.1 though.

Hello,
I then tried fiddling with the Makefile.config file, and then relaunched configure, my changes to that file were lost and then all those compilation problems
went away.
I kept a copy of the build directory and will be using Meld to compare the makefiles and such to see what miracle happenned.