libsigc++20 2.2 rebuild issues

[Denis Leroy <denis poolshark org>]

Wart wrote:
> Matt Domsch wrote:
> > Fedora Rawhide-in-Mock Build Results for i386
> > using rawhide from 3/29 and for any failures, again with 3/31
> >
> > Full logs at http://linux.dell.com/files/fedora/FixBuildRequires/
> >
> > Total packages: 5500
> > Number failed to build: 304
> > Number expected to fail due to ExclusiveArch or ExcludeArch: 13
> > Leaving:  291
> > (there may be some duplicates if rawhide has 2 versions of a package)
> [...]
> > wart: sear
>
> This depends on libsigc++20, which was upgraded from 2.0.x to 2.2.2,
> which broke backwards compatibility in some cases.  Did I miss an
> announcement of this somewhere?

Yes my apologies for this. libsigc++20 2.2 turned off support for the 
deprecated 1.2 API, and that wasn't made very clear whth 2.2.0 came out. 
I just sent you a patch for sear that compiles for me.

A quick howto to port to the 2.0 API

1) email me :-)

or

2) install and run regexxer. regexxer is your friend.

look for occurences of 'SigC::slot'. These must be replaced with 
'sigc::mem_fun' if it has 2 arguments, or 'sigc::ptr_fun' if it has one arg.

'Sigc::Signal' should be replaced with 'sigc::signal'

'Sigc::Object' is replaced by 'sigc::trackable'.

Generally, any use of 'SigC' instead of 'sigc' will cause a failure.