Why xml2po runs so slow in top folder of garnome/desktop?

[Yu-Hui Calvin Liu <Calvin Liu Sun COM>]

Hi, there,

I tried to build a garnome-2.14.1 on a dual cpu box, with Fedora Core 3. 
The build process was OK but the speed was quite slow. One problem I met 
was that for many help files (I guess so), there's a tool xml2po that 
was used to process them. So there's quite strange problems happened:
1) The build process failed several times when doing the xml2po but it 
could be simply solved by run the "make paranoid-install" once or twice 
again, no need to make any change at all!
2) The xml2po ran so slow in "desktop" folder, the top folder of many 
modules. But if I go to folder 
"garnome-2.14.1/desktop/<module>/work/main.d/<module>-<version>" and run 
"make" in it, it'll be much faster.

Who can tell me why this happened?

Thanks.
Calvin