Review Request: cannot compile qt if kderoot path is too long

[Ralf Habacker]

> On Feb. 14, 2011, 3:24 p.m., Wolfgang Rohdewald wrote:
> > now I actually found a note in the wiki about a short path option in kdesettings.
> > 
> > but I lost too much time with this - I do want to make sure this does never happen again.

emerge provides two strategies in thia area: 

1. path substition by drive letters, which has to be configured in kdesettings.bat (you already refered to this) 
2. short path usage - replace pathes by the short form. This feature is currently package based and could be activated by setting self.subinfo.options.useShortPathes -  see EmergeBase.__adjustPath() and where is is used for more details. 
both strategies could be used together 

There are several limits in this area - nmake, mingw32-make, cmake, command line, each one has its own different limit

I found some related thread: 

http://lists.kde.org/?l=kde-windows&m=125717156605667&w=2
http://www.cmake.org/pipermail/cmake/2008-August/023279.html
http://lists.kde.org/?l=kde-windows&m=124222975100566&w=2

>From my personal experience does mingw builds have more problems as msvc builds and the most annoying package is qt 

Ralf 


- Ralf


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On Feb. 14, 2011, 3:18 p.m., Wolfgang Rohdewald wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> http://svn.reviewboard.kde.org/r/6483/
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> 
> (Updated Feb. 14, 2011, 3:18 p.m.)
> 
> 
> Review request for kde-windows.
> 
> 
> Summary
> -------
> 
> On windows, gcc/g++ only take a maximum of 8192 chars for command line arguments. If they get more they will not complain but strange things will happen like compiler segfaulting or gcc misinterpreting the arguments at around position 8192. I did not report this as a gcc bug, maybe somebody else already is registered wherever that can be done. I was using mingw4.
> 
> So emerge.py now first checks - it allows a maximum of 10 chars like in c:\kderoot. This results in command line lengths up to around 7700 (maybe more, this is what I saw).
> 
> I was using kderootsvn which makes gcc die when compiling c:\kderootsvn\download\svn-src\qt\src\3rdparty\sqlite\sqlite3.c, the command line having a length of 8214
> 
> When this review is closed, I will update the emerge wiki
> 
> 
> Diffs
> -----
> 
>   /trunk/kdesupport/emerge/bin/emerge.py 1220611 
> 
> Diff: http://svn.reviewboard.kde.org/r/6483/diff
> 
> 
> Testing
> -------
> 
> 
> Thanks,
> 
> Wolfgang
> 
>

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