>> Anybody?
>>
>>   It looks like the crash is due to a poppler function prototype
>> confusion. Is
>> this gcc 4.7.1 related? Anybody familiar with the poppler-tqt call
>> involved?
>> Moreover -- how to fix it?
>
> It looks like HAVE_POPPLER_016 is not being set.  tdegraphics builds fine
> here, so I suspect that there is an upstream API change that is confusing
> the Poppler version check in
> kfile-plugins/dependencies/poppler-tqt/ConfigureChecks.cmake.
>
> Tim

Come to think of it, the gcc change might also interfere with that check. 
It would help if you could post the following files from your tdegraphics
build:
CMakeFiles/CMakeError.log
CMakeFiles/CMakeOutput.log

Thanks!

Tim