Re: [xml] libxml2-2.7.8 and MinGW

[Roumen Petrov <bugtrack roumenpetrov info>]

Earnie wrote:
> Earnie wrote:
> > Roumen Petrov wrote:
> > > Earnie wrote:
> > > > Earnie wrote:
> > > > > I've been building libxml2-2.7.8 and have been having a heck of
> > > > > a time getting xmlcatalog to work with a shared DLL library.
> > > > > I've finally confirmed that the issue is caused by optimizations
> > > > > with -O2 or -O1. If I use -O0 the issue goes away. The effect is
> > > > > the xmlIsPubidChar_tab array is seen by xmlcatalog to contain all
> > > > > 0x00 values. I'm using GCC-4.6.1 and binutils-2.21.53.20110804
> > > > > as delivered by MinGW. I wanted give this list a report of what
> > > > > I've found in the event others come by, they may have already.
> > > hmm ,
> > >
> > > Look like regression as it is fine with me for gcc/binutils: -
> > > 3.4.5/2.17.50 20070129 - 4.4.0/2.19.1
> > It was Kai Tietz who is active in GCC development for Windows and one of
> > its maintainers who pointed me to the issue resolution.
> >
> > See http://thread.gmane.org/gmane.comp.gnu.mingw.user/38000 for the
> > discussion.
[SNIP]
Above like is fine to follow the thread .
I'm not against the patch
a) it will resolve linking issue if libxml2 is build with gcc (mingw) 
and -nocommon flag.
b) it will resolve issue with new gnu compiler/linker
c) libxslt and xmlsec for instance use extern for mingw* compilers

Lets first finish discussion on mingw list as libxml and libxslt does 
not use extern for cygwin compiler. If cygwin build is impacted then 
complete patch must cover both woe compilers. Also  another patch for 
libxslt is required .

Roumen