[Zope] Re: [SUM] zope cvs on Cygwin

[Jason Tishler]

Didier,

On Sat, Mar 30, 2002 at 04:53:56PM -0500, Jason Tishler wrote:
> On Sat, Mar 30, 2002 at 10:24:53PM +0100, Didier Georgieff wrote:
> > As promized, i summarized the solution in a how-to on zope.org.
> > 
> > http://www.zope.org/Members/dgeorgieff/howto_zope_cvs_on_cygwin/
> 
> There are some inaccuracies in the above.  I'm off on a business trip,
> but I will try to provide feedback ASAP.

Here are my comments:

> How-to compile zope cvs on Cygwin                            
>                                                              
> Created by dgeorgieff. Last modified on 2002/03/30.          
>                                                              
> If you want to compile a fresh cvs zope under cygwin you'll  
> face some compilation problems, because of some Cygwin fork  
> () bugs.                                                     

The Cygwin fork() problem causes compilation problems but only during
the build of the standard shared extensions.  This is due to Cygwin's
fork() aborting child processes (i.e., gcc) due to a Windows DLL base
address conflict.

> Those steps should allow you to have a working zope from     
> cvs.                                                         
>                                                              
> This is tested with :                                        
>                                                              
>   * Win 98                                                   
>                                                              
>   * Cygwin 1.3.10                                            
>                                                              
>   * Python 2.1.1 (cygwin source package)                     

Why not use Python 2.2?

>   * Zope source from CVS                                     
>                                                              
> Python from source with threads                              
>                                                              
> you have to compile the python source (the one from cygwin)  
> with threads enable.                                         

Note that threaded Cygwin Python has a hang bug unless one builds with
the following patches:

    http://sourceforge.net/tracker/?group_id=5470&atid=305470&func=detail&aid=525532
    http://sources.redhat.com/ml/newlib/2002/msg00122.html

The first one is a Python patch, the second one is a Cygwin (i.e.,
newlib) patch.  I will finally release a threaded Cygwin Python once
Cygwin 1.3.11 is released.

>   * Get python 2.1.1 with source from cygwin                 
>                                                              
>   * Recompile Cygwin python with thread support              
>                                                              
>       + cd $PY_SRC (replace $PY_SRC by your own folder)      
>                                                              
>       + ./configure --with-threads                           
>                                                              
>       + make                                                 
>                                                              
>       + make install                                         
>                                                              
>   * run $PY_SRC/Tools/scripts/h2py.py /usr/include/sys/      
>     fcntl.h                                                  
>                                                              
>   * save the resulting FCNTL.py file in /usr/local/lib/      
>     python2.1/plat-cygwin/FCNTL.py                           

make install should be generating FCNTL.py, etc.  Why do you need the
two manual steps above?

> Correct the python problem                                   
>                                                              
> You have to run a rebase workaround for the fork() problem,  
> to make it work.                                             
>                                                              
>   * create the rebase program from rebase.cc                 
>                                                              
>       + g++ -O2 -o rebase rebase.cc -limagehlp               

You can find a pre-built rebase.exe at the following:

    http://www.tishler.net/jason/software/rebase/rebase.exe.bz2

>   * use this rebase program against the DLLs (replace this   
>     dll list by yours, and adapt eventually your list by     
>     removing any dll causing rebase to fail)                 
>                                                              
>       + cd /usr/bin                                          
>                                                              
>       + rebase -d -b 0x68000000 -o 0x10000 cygbz21.0.dll     
>         cygcrypto.dll cygexslt-0.dll cygform5.dll            
>         cygform6.dll cyggdbm.dll cyghistory4.dll             
>         cyghistory5.dll cygintl-1.dll cygintl.dll            
>         cygitcl30.dll cygitk30.dll cygjpeg6b.dll             
>         cygltdl-3.dll cygmenu5.dll cygmenu6.dll              
>         cygncurses++5.dll cygncurses++6.dll cygncurses5.dll  
>         cygncurses6.dll cygpanel5.dll cygpanel6.dll          
>         cygpcre.dll cygpcreposix.dll cygreadline4.dll        
>         cygreadline5.dll cygregex.dll cygssl.dll             
>         cygtclreg80.dll cygtiff3.dll cygtk80.dll             
>         cygxml2-2.dll cygxslt-1.dll cygxsltbreakpoint-1.dll  
>         cygz.dll                                             
>                                                              
>       + rebase -d -b 0x68000000 -o 0x10000 /usr/src/         
>         python-2.1.1/libpython2.1.dll                        
>                                                              
>       + rebase -d -b 0x68000000 -o 0x10000 /usr/src/         
>         python-2.1.1/build/lib.cygwin-1.3.10-i686-2.1/*.dll  

With the above version of rebase (as opposed to the one that I am building
into Cygwin's setup.exe), one must rebase *all* files in one shot.
One *cannot* invoke rebase three different times.  Additionally, note
the following:

    o Rebase all Cygwin DLLs in /usr/bin except for cygwin1.dll,
    cygcurl-2.dll, and libW11.dll.  The above list is the Cygwin DLLs
    in my /usr/bin which may be different than what is in other user's
    /usr/bin.

    o Rebase /usr/local/bin/libpython2.1.dll not the one in the build
    tree.

    o Rebase all files in /usr/local/lib/python2.2/lib-dynload not the
    ones in the build tree.

> [snip]

Jason