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Bug 99055 - rpm rpm build fails when PYTHONPATH is set
rpm rpm build fails when PYTHONPATH is set
Product: Red Hat Linux
Classification: Retired
Component: rpm-build (Show other bugs)
All Linux
medium Severity medium
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Assigned To: Paul Nasrat
Mike McLean
Depends On:
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Reported: 2003-07-13 06:33 EDT by David Nečas
Modified: 2007-04-18 12:55 EDT (History)
0 users

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Doc Type: Bug Fix
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Last Closed: 2005-11-29 14:47:13 EST
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Description David Nečas 2003-07-13 06:33:28 EDT
From Bugzilla Helper:
User-Agent: Mozilla/5.0 Galeon/1.2.10 (X11; Linux i686; U;) Gecko/20030314

Description of problem:
Less inscrutably: rebuild of rpm package of rpm (more precisely of rpm-python,
but the source package is simply `rpm') fails because it tries to install the
Python module according to PYTHONPATH (or PYTHONHOME, or maybe others).

This is because python/Makefile.am uses

  pylibdir = $(shell python -c 'import sys; print sys.path[1]')

to find where the python module should be installed. When the package is built
by someone who has PYTHONPATH set to his/her personal Python module tree, the
first path in PYTHONPATH becomes sys.path[1], and the module is not installed to
$RPM_BUILDROOT/lib/python..., but somewhere into the deep space, and the package
build fails.

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

How reproducible:

Steps to Reproduce:
2. rpmbuild --rebuild rpm-4.2-0.69.src.rpm

Additional info:

There are several possible fixes:

1. unset all the PYTHON* environment variables in the spec file.  This works but
is ugly.

2a. use

  pylibdir = $(shell python -E -c 'import sys; print sys.path[1]')

in python/Makefile.am.  This however may break builds when one really wants to
install rpm somewhere to home.

2b. patch python/Makefile.in in the spec file to use the -E option. Normal
builds then use PYTHONPATH, PYTHONHOME, etc., but rpm package builds are not
affected by it.
Comment 1 David Nečas 2003-07-13 07:41:48 EDT
python/rpmlib/Makefile.am has the same problem. (Sorry, I forgot to mention it
in the report.)
Comment 2 Paul Nasrat 2005-11-29 14:47:13 EST
In current rawhide:

pylibdir = ${prefix}/lib@MARK64@/python@WITH_PYTHON_VERSION@

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