[webkit-dev] Increasing Finickiness of Cygwin Installations

[Manish Gurnaney]

Hi,
    I am facing some different problem with Cygwin on Windows-7 64-Bit.
Many times webkit build hangs, then need to kill all Python and perl
process and again restart build.
    Also When we run layout test cases I face this issue. But Some my
colleagues are using 32 bit system and some Old Cygwin they don't face such
issues.

Regards,
Manish Gurnaney


On Fri, Apr 4, 2014 at 2:25 AM, Brent Fulgham <bfulgham at apple.com> wrote:

> Hi everyone,
>
> I've been reviewing some of the setup and reliability problems with our
> Windows builders, and have discovered that there are a number of challenges
> to getting a working Cygwin environment for building WebKit:
>
> You must use very specific versions of some Cygwin tools:
>
> 1. curl version 7.33.0:  If not, you get certificate errors when
> attempting to retrieve WebKitAuxilliaryLibraries.zip from apple.com.
>  Cygwin attempts to install 7.34.0, which will cause failures during
> "update-webkit".  You must manually select the 7.33 build.
> 2. Python version 2.6.8:  If not, you get errors indicating "Invalid
> Python installation: unable to open
> '/cygdrive/c/Cygwin/include/python2.7/pyconfig.h". This seems to be a
> regression since 2.6.8. Again, Cygwin tries to upgrade you to 2.7.3 every
> time you run the Cygwin setup utility. You must manually specify that you
> want 2.6.8.
> 3. Subversion 1.7: If not, you get errors updating sources due to
> incompatible authentication with svn.webkit.org.
>
> I also noticed that Cygwin tried to update to GNU Make 4.0; I left it at
> 3.82.90 since our Mac builders use 3.81 and I wanted to avoid yet another
> possible difference.
>
> I experimented with using the 64-bit Cygwin installation, but found that
> their build of bison failed to process our CSSGrammar.y file (exiting with
> error 141 without doing anything). The 32-bit build of bison does not share
> this problem.
>
> While there is a significant benefit to sharing the various build scripts
> and setup routines with our UNIX-flavored ports, I'm growing increasingly
> concerned that relying on Cygwin to provide similar benefits on Windows may
> become more difficult.
>
> I would love to move our Python requirement to 2.7 to be more consistent
> with our Mac builders, but have not found a suitable workaround. Are any
> other WebKit people aware of this problem or solutions for Cygwin?
>
> Thanks,
>
> -Brent
>
>
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