[New-bugs-announce] [issue19394] distutils.core.Extension: empty strings in library_dirs and include_dirs should not be allowed

[robotron]

New submission from robotron:

When empty string element is passed in include_dirs or library_dirs (e.g. include_dirs = [""]) param of distutils.core.Extension constructor, it is propagated to compiler/linker params and in the case of gcc it eats subsequent command line option.

setup.py excerpt:

---
extensions = [
    Extension("test_extension", ["test_extension.cpp"],
        include_dirs = [""],
        libraries = ["rt"],
        library_dirs = [""],
        )
]
---

$ python setup.py build
...
gcc ... -I -I/usr/include/python2.7 -c test_extension.cpp ...

Standard include dir "/usr/include/python2.7" is ommited now. The same is valid for library_dirs.

Example scripts attached.

----------
assignee: eric.araujo
components: Distutils
files: bug_test_case.zip
messages: 201269
nosy: eric.araujo, robotron, tarek
priority: normal
severity: normal
status: open
title: distutils.core.Extension: empty strings in library_dirs and include_dirs should not be allowed
type: behavior
versions: Python 2.7
Added file: http://bugs.python.org/file32361/bug_test_case.zip

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue19394>
_______________________________________