[Unionfs] How to enable debugging

[Erez Zadok]

In message <47EA0699.90700 at expires-20080606.gate.mooo.com>, Klaus Fuerstberger writes:
> Hi Erez,
> 
> Erez Zadok said the following on 25.03.2008 21:39:
> > There's no debug options to turn on at mount time: you just need to compile
> > with debugging on, as you've done above, and Unionfs will printk some
> > additional messages if/when needed.
> 
> Thanks!
> 
> >> I got a warning when compiling the kernel with enabled debugging. Mabe 
> >> its important:
> > Klaus, I'm unable to reproduce this compile warning with several of my
> > setups.  Are you using a vanilla 2.6.24 kernel or one modified somehow?  If
> > it's not a vanilla kernel, please send me all other patches you've applied
> > on top of the vanilla kernel.
> 
> I started with a clean vanilla 2.6.24 with the latest patch 2.6.24.4. 
> The same warning happened.
> 
> > Also, what version of g/cc are you using (gcc -v).
> 
> ~# gcc -v
> Using built-in specs.
> Target: i486-linux-gnu
> Configured with: ../src/configure -v 
> --enable-languages=c,c++,fortran,objc,obj-c++,treelang --prefix=/usr 
> --enable-shared --with-system-zlib --libexecdir=/usr/lib 
> --without-included-gettext --enable-threads=posix --enable-nls 
> --with-gxx-include-dir=/usr/include/c++/4.2 --program-suffix=-4.2 
> --enable-clocale=gnu --enable-libstdcxx-debug --enable-mpfr 
> --disable-libmudflap --enable-targets=all --enable-checking=release 
> --build=i486-linux-gnu --host=i486-linux-gnu --target=i486-linux-gnu
> Thread model: posix
> gcc version 4.2.3 20080114 (prerelease) (Debian 4.2.2-7)

Ah, this is a newer (and unofficial?) version of gcc than I use.  Newer
version of gcc often perform newer syntax checks and complain about new
stuff.  I'd ignore it for now.

> At the moment its not important for me to enable debugging any more. 
> Nevertheless thanks for your answer.
> 
> Bye Klaus

Cheers,
Erez.