#10427: cloning is broken on Solaris
-----------------------------+----------------------------------------------
Reporter: jhpalmieri | Owner: drkirkby
Type: defect | Status: new
Priority: major | Milestone: sage-4.6.1
Component: solaris | Keywords: Solaris ln posix
Author: John Palmieri | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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On Solaris, cloning is broken. This is because the command "ln"
interprets its options differently on Solaris as compared to linux or OS
X. Suppose `OLD1` and `OLD2` are existing directories. On linux or OS X:
{{{
$ ln -snf OLD-1 NEW
$ ls -l
... NEW@ -> OLD1
... OLD1
... OLD2
$ ln -snf OLD2 NEW
$ ls -l
... NEW@ -> OLD2
... OLD1
... OLD2
}}}
On Solaris:
{{{
$ ln -snf OLD-1 NEW
$ ls -l
... NEW@ -> OLD1
... OLD1
... OLD2
$ ln -snf OLD2 NEW
$ ls -l
... NEW@ -> OLD1
... OLD1
... OLD2
}}}
`NEW` still points to `OLD1`. The second command creates a link
''inside'' `NEW` (which means, inside `OLD1`), linking to `OLD2`.
This means that the line
{{{
ln -snf "sage-$1" sage
}}}
in sage-build doesn't do what we want it to on Solaris: unlink 'sage' and
then relink it to "sage-$1". I think we need to delete 'sage' first, so
that's what the attached patch does.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10427>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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