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Description of problem:

In RHEL 7, libguestfs build invokes po4a using these parameters:

po4a \
  -M utf-8 -L utf-8 -A utf-8 \
  -v \
  -k 0 \
  --package-name libguestfs \
  --package-version 1.21.31 \
  --msgid-bugs-address libguestfs \
  --copyright-holder "Red Hat Inc." \
  po4a.conf

This gives an error:

Updating ./libguestfs-docs.pot:
'tempfile' can't be called as a method at /usr/share/perl5/vendor_perl/Locale/Po4a/Po.pm line 539.

(It does the same thing in Fedora and RHEL 6, but we've
not hit this problem before)

Version-Release number of selected component (if applicable):

po4a-0.42-3.el7.noarch

How reproducible:

100%

Steps to Reproduce:
1. See above.

Actually I suspect this is a bug in File::Temp since:

$ perl -MFile::Temp -e 'File::Temp->tempfile("/tmp/fooXXXXXX")'
'tempfile' can't be called as a method at -e line 1.

whereas on Fedora 18:

$ perl -MFile::Temp -e 'File::Temp->tempfile("/tmp/fooXXXXXX")'
[no error]

RHEL 7 (error): perl-File-Temp-0.23-1.el7.noarch
Fedora 18 (OK): perl-5.16.2-240.fc18.x86_64

Apparently according to the unfriendly people in #perl,
it's a bug in po4a.  po4a should not use File::Temp->tempfile,
but should use File::Temp::tempfile.

Setting component back.

I sent a patch upstream (to po4a) to fix this, also
included the patch in Rawhide.

https://brewweb.devel.redhat.com/taskinfo?taskID=5656654