[patch]: Decouple cygwin building from in-tree mingw/w32api building

Kai Tietz ktietz70@googlemail.com
Thu Oct 18 15:58:00 GMT 2012

Hi Corinna,

2012/10/18 Corinna Vinschen:
> Hi Yaakov,
> On Oct 18 02:33, Yaakov (Cygwin/X) wrote:
>> On Wed, 2012-10-17 at 15:32 -0400, Christopher Faylor wrote:
>>> But, anyway, nevermind.  This shouldn't be a requirement for getting
>>> these changes checked in.  I'm more concerned with just nuking the
>>> now-unneeded mingw script.
>> Draft patch attached, based partially on Kai's.  Yes, it needs a
>> ChangeLog entry, but it also needs more testing first.
>> On Cygwin, you need either mingw-gcc-g++ and mingw-zlib, or
>> mingw64-i686-gcc-g++ with Ports' mingw64-i686-zlib, available here:
> Any problem to move mingw64-i686-zlib into the distro?

Hmm, wouldn't assume so.  I can give JonY a ping for that.  I assume
he would provide such a package.  Shall I ask him?

>> ftp://ftp.cygwinports.org/pub/cygwinports/release-2/CrossDevel/mingw64-i686-zlib/
>> On Fedora, you need my cygwin-gcc-c++ plus mingw32-gcc-c++ and
>> mingw32-zlib-static.  Unfortunately F17's mingw32-headers isn't
>> (aren't?) new enough, so two files in winsup/utils wouldn't compile
> Indeed, unfortunately.  The Fedora maintainer cut the latest version
> right before I started to apply my changes to mingw64.
> Kai, do you have a chance to bump the Fedora maintainer?  An update
> to the latest state would help our cause a lot.

I am about to give the Fedora-maintainer a ping about this.

>> until I manually upgraded to
>> mingw32-headers-2.0.999-0.13.trunk.20121016.fc19.noarch.rpm from
>> rawhide.  F16 (which uses the mingw.org toolchain) should also be okay.
>> Apply the patch, rm -r winsup/mingw/ winsup/w32api/ winsup/utils/mingw,
>> run autoconf in winsup/utils, then configure and build.  Tested so far
>> with CVS HEAD on Cygwin and Fedora 17 (with the aforementioned issue)
>> with our new w32api and the i686-w64-mingw32 toolchain; I have NOT yet
>> tested the resulting cygwin1.dll.
> Just FYI, there's a branch in sourceware called cygwin-64bit-branch.
> It contains all of Cygwin but omits the winsup/mingw and winsup/utils
> dir already.
> The idea of the branch is to collect all changes required to make Cygwin
> 64 bit work, while keeping the trunk intact for normal releases for the
> time being.  Since we would like to keep Cygwin working on 32 bit,
> cygwin-64bit-branch is supposed to make sure that Cygwin still builds on
> 32 bit as well.
> I had a brief look into the patch but didn't test it yet.  It looks good,
> but it misses out on one important thing:  In contrast to Kai's patch, it
> does not test for the target CPU, so these patches don't allow to build
> with --target=x86_64-pc-cygwin.

 Hmm, where do I check --target option?  I use host-triplet for
 detecting cpu's architecture name. See in utils/configure.in file.


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