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List:       kdevelop
Subject:    problem with compiler option -frepo
From:       Eric Klumpp <klumpp () nerim ! fr>
Date:       2002-05-30 11:26:14
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Hi,

I have a problem with the compiler option -frepo !

I use a lot of template classes, the compilation was long and the 
execution slow, that's why I have tried to remove the implicite 
templates. So doing I have used the compiler option -frepo, I had to add 
files containing an explicit instantiation of each different templates, 
and now all work : the compilation is faster, as the execution (40" 
indeed of 4' for one treatment), and the execute file is bigger (7Mo 
instead of 2Mo).

My problem is that the files "*.rpo" aren't removed with the distclean 
process, and, when a source file has been modified, the compilation of 
this source file replace the object file .o by the new one but not the 
file .rpo, and this can make linker errors ("undefined reference 
to...."). If I make a distclean and manually remove all .rpo files, the 
problem is resolved, but this is not very usefull.

So is there a solution to remove the .rpo files with the distclean 
process, and/or at the compilation process ?
Perhaps is there an other convenient solution for the templates than 
using the -frepo compiler option ? I have already tried the option 
-fno-implicit-templates, but there are some undefined references that I 
haven't resolved. I also tried -fexternal-templates, but this seems to 
imply the explicit instantiation of the Qt templates in the same time, 
and I have troubles that's why I prefered to try the option -frepo.

Best regards,

Eric



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