Building C++ with --enable-languages=c,fortran

[Thomas Koenig]

Hello world,

I just noticed that C++ now appears to be built by default, even when 
only the C and fortran are specified.  The configure line


../trunk/configure  --prefix=$HOME --enable-languages=c,fortran 
--with-mpc=/usr/local --with-mpfr=/usr/local

leads to the message

checking for version 0.11 (revision 0 or later) of PPL... no 

The following languages will be built: c,c++,fortran,lto

I see recent changes by Ian in this area, but nothing in the ChangeLog
suggests to me that this was intentional.

Any ideas?