Bug 135613 – [Win] Build error when OFFICIAL_BUILD != 1.

• Status: RESOLVED
• Resolution: FIXED
• Component: Web Template Framework

When OFFICIAL_BUILD != 1 the WinCairo build fails to build WTFGenerated, because the make file tries to run a python script directly, but this fails, because it needs to be started with a shell (bash -c ...).

Created attachment 236034 [details]
Patch

[Brent Fulgham]

Comment on attachment 236034 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=236034&action=review

> Source/WTF/ChangeLog:8
> +        This is solved by rewriting the python script to perl.

I don't understand this. Why can't you use the Python implementation?

I'm trying to reduce the use of bash-based build steps, so changing this to call python directly might be the cause of the problem. I have ActiveState Python installed, which may be why it works for me.

[Brent Fulgham]

I don't think this is the right approach; I would like to use the existing script. Instead, we need to figure out why the Python script cannot be used.

(In reply to comment #2)
> (From update of attachment 236034 [details])
> View in context: https://bugs.webkit.org/attachment.cgi?id=236034&action=review

Thanks for reviewing :)

> 
> > Source/WTF/ChangeLog:8
> > +        This is solved by rewriting the python script to perl.
> 
> I don't understand this. Why can't you use the Python implementation?
> 
> I'm trying to reduce the use of bash-based build steps, so changing this to call python directly might be the cause of the problem. I have ActiveState Python installed, which may be why it works for me.

Ok, I see, I don't have ActiveState installed, just the cygwin environment.
Is it a requirement to have ActiveState installed? In that case I think this bug is invalid ...

(In reply to comment #3)
> I don't think this is the right approach; I would like to use the existing script. Instead, we need to figure out why the Python script cannot be used.

I think it fails for me because python is not in the PATH environment variable.

I guess we also could go back to 'bash -c python ...', but that's sort of counter-productive to your attempt at reducing the use of bash...

[Alex Christensen]

(In reply to comment #5)
> I think it fails for me because python is not in the PATH environment variable.
Does putting python in the PATH fix it?  If so, this should be closed as invalid.

Heads up -- I'm starting to get things working with CMake, which will require separate installation of things like bison, flex, gperf, grep etc.

(In reply to comment #6)
> (In reply to comment #5)
> > I think it fails for me because python is not in the PATH environment variable.
> Does putting python in the PATH fix it?  If so, this should be closed as invalid.
> 
> Heads up -- I'm starting to get things working with CMake, which will require separate installation of things like bison, flex, gperf, grep etc.

I see now that WTFPreBuild.cmd adds c:\cygwin\bin to PATH, and there is both a perl and python executable there, but the python executable has the name python2.6.exe, which explains why python.exe is not found ...

[Alex Christensen]

I installed python from python.org and manually put it into my PATH variable.  Same with ActivePerl.  We should really update http://www.webkit.org/building/tools.html.

(In reply to comment #7)
> (In reply to comment #6)
> > (In reply to comment #5)
> > > I think it fails for me because python is not in the PATH environment variable.
> > Does putting python in the PATH fix it?  If so, this should be closed as invalid.
> > 
> > Heads up -- I'm starting to get things working with CMake, which will require separate installation of things like bison, flex, gperf, grep etc.
> 
> I see now that WTFPreBuild.cmd adds c:\cygwin\bin to PATH, and there is both a perl and python executable there, but the python executable has the name python2.6.exe, which explains why python.exe is not found ...

There is actually a python symlink in c:\cygwin\bin which points to python2.6.exe, but it's not a native symlink, and will only work with bash, I believe.

Created attachment 236095 [details]
Patch

(In reply to comment #10)
> Created an attachment (id=236095) [details]
> Patch

I suggest we temporarily go back to execute the python script from the bash shell until http://www.webkit.org/building/tools.html is updated.

[Alex Christensen]

(In reply to comment #11)
> I suggest we temporarily go back to execute the python script from the bash shell until http://www.webkit.org/building/tools.html is updated.
I think this would be a step against the direction the Windows build systems are going.  Websites/webkit.org/building/tools.html should be changed instead of this.

Created attachment 236119 [details]
Patch

(In reply to comment #12)
> (In reply to comment #11)
> > I suggest we temporarily go back to execute the python script from the bash shell until http://www.webkit.org/building/tools.html is updated.
> I think this would be a step against the direction the Windows build systems are going.  Websites/webkit.org/building/tools.html should be changed instead of this.

Ok, thanks :) Updated patch.

[Alex Christensen]

Comment on attachment 236119 [details]
Patch

In the near future we'll have to add more things like this (bison, flex, gperf, etc.) once my CMake work takes over

(In reply to comment #15)
> (From update of attachment 236119 [details])
> In the near future we'll have to add more things like this (bison, flex, gperf, etc.) once my CMake work takes over

Sounds good, thanks for reviewing :)

[WebKit Commit Bot]

Comment on attachment 236119 [details]
Patch

Clearing flags on attachment: 236119

Committed r172163: <http://trac.webkit.org/changeset/172163>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.