[Monotone-devel] Re: cygwin & *.exe

[Zbynek Winkler]

graydon hoare wrote:

> > However further testing revealed that the db was created at the path 
> > c:\test.db and not in the cygwin root. I guess those two don't really 
> > play along well. I guess the problem is that boost somehow 'knows' it 
> > is running on windows and does not use the cygwin layer for that. 
> > I'll try to look into that.
>
> yes. this is probably happening down in boost::filesystem, which has 
> different behavior on windows and posix. indeed, its whole purpose is 
> to insulate between pathname differences. it sounds like it is 
> stepping on cygwin's feet. unfortunately those differences are built 
> into your boost library, not just boost headers. looking at
>
> boost_1_30_0/libs/filesystem/src/path_posix_windows.cpp
>
> reveals that, as far as boost is concerned, __CYGWIN__ means it's "on 
> windows", and will define BOOST_WINDOWS and switch to all that stuff.
> do you know which system calls / library calls cygwin intercepts? 
> perhaps it is not intercepting all the right stuff.

Yes. I've found that out too. I've managed to build both versions of the 
library. One works fine with the windows paths and the other with 
cygwins. So we can choose :-)

> I must admit, I find the notion of having users set up a c:/cygdrive 
> and run monotone from in there (with all the resulting fighting over 
> path names, not to mention line-ending conversion) relatively 
> unappealing. this is why I was aiming to do a mingw / vc++ port.

That would certainly be better. I am also more experienced with vc++ so 
I might be of more help there. sqlite seems to be able to work natively 
on windows. I've also found native popt. I know there is native iconv 
and intl. What I do not know about is lua, adns and cryptopp. How do 
they like windows? adns seems to be pretty much unix only.

Zbynek
PS. My current build of monotone works with windows paths. It requires 
only cygwin1, cygiconv, cygintl dlls and it should work. I could upload 
it somewhere (striped 4MB) for you to test.