Re: [xml] Configure error C++ preprocessor "CC -E" fails sanity check

[Ralf Corsepius <rc040203 freenet de>]

On Sat, 2006-07-29 at 04:22 -0400, Daniel Veillard wrote:
> On Sat, Jul 29, 2006 at 09:50:44AM +0200, Ralf Corsepius wrote:
> > On Fri, 2006-07-28 at 13:05 -0400, Augie Henriques wrote:
> > > Hi.
> > >  
> > > I'm new to the libxml.
> > >  
> > > I have QNX4 and I'm trying to run the configure script using...
> > >  
> > > configure --disable-shared --without-threads CC=cc CXX=CC LD=cc
> > > CPP="cc -E" CXXCPP="CC -E" CFLAGS="-mf -j -zp4 -5r" CXXFLAGS="-mf -j
> > > -zp4 -5r"
> > >  
> > > I get the following error...
> > >  
> > > configure: error: C++ preprocessor "CC -E" fails sanity check
> > > see 'config.log' for more details
> > >  
> > > [See attached config.log file]
> > >  
> > > Why do I get this error message?  How can I fix this?
> >
> > Note this:
> > > configure:5375: checking for C++ compiler version
> > > configure:5378: CC --version </dev/null >&5
> > > CC: not found
> >
> > By installing the c++-compiler you specify in your call to configure?
>
>  One thing which suprizes me is that while the configure command
> is in error passing a wrong c++ compiler name on the command line
> argument,
This is a DUE, but ...

>  I don't understand why it affects libxml2 as we don't
> need a C++ compiler anywhere, just a C one. There may be something
> to fix there, 

Without having checked detail, this looks like a side effect of this
freaking bug in libtool, which pulls in checks for all languages libtool
supports into configure scripts.

This bug renders many packages using libtool almost unbuildable on many
platforms which don't have a working c++-compiler installed (Many
embedded toolchains).

Ralf