pkg/55886: py-expat cannot create folder

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>Number:         55886
>Category:       pkg
>Synopsis:       py-expat cannot create folder
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Dec 19 22:05:00 +0000 2020
>Originator:     Eric Jones
>Release:        pkgsrc 2020Q3
>Organization:
Visual Entertainment and Technologies, LLC
>Environment:
NetBSD arm64 9.99.77 NetBSD 9.99.77 (Generic64) #0: Sat Dec 12 15:06:11 UTC 2020 mkrepro%mkrepro.NetBSD.org@localhost:/usr/src/sys/arch/evbarm/compile/GENERIC64 evarm
>Description:
Building meta/xfce4

At the end of compilation for textproc/py-expat, the script tries to make a directory in .error called check-file-prefix. However at the start of building this package, the script removes the .error directory. So when it reaches the end, we get this message: cannot create /usr/pkgsrc/textproc/py-expat/work/.error/check-file-prefix directory nonexistent

And it errors out.

>How-To-Repeat:
Build textproc/py-expat
>Fix:
Sadly, I don't have the time to figure out how pkgsrc internals work to actually fix the broken line, but my simple solution was to mkdir  /usr/pkgsrc/textproc/py-expat/work/.error/ after building py-expat started, but before it tried to make the check-file-prefix directory.