gcc-5.2.0 fails to compile itself

[john.frankish@laposte.net]

> > Bump - can anybody help (detailed errors in first message)? 
> >
> Not enough info. Need host machine, host compiler, configure, etc. 
> Enough for someone to be able to reproduce the problem. 
> 
> My best guess is that your host machine's compiler is borked or you 
> don't have glibc devel libs installed. And did you really mean i486? 

The host machine is i486, the glibc devs are there, the host compiler is gcc-5.2.0 built with the the following configure options:

CC="gcc -march=i486 -mtune=i686 -Os -pipe" CXX="g++ -march=i486 -mtune=i686 -Os -pipe" ../gcc-5.2.0/configure --prefix=/usr/local --enable-languages=c,c++ --disable- multilib --disable-bootstrap --with-system-zlib --libexecdir=/usr/local/lib --enable- frame-pointer