#11359: ECL does not fully recover from relocation
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Reporter: nbruin | Owner: GeorgSWeber
Type: defect | Status: needs_review
Priority: blocker | Milestone: sage-5.10
Component: packages: standard | Resolution:
Keywords: ecl relocation | Work issues:
Report Upstream: N/A | Reviewers:
Authors: Jeroen Demeyer | Merged in:
Dependencies: | Stopgaps:
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Comment (by nbruin):
Replying to [comment:21 jdemeyer]:
> Nils or Leif: can you give an example of an ''actual compilation'' which
fails because of this? The wrong paths might not matter that much if the
proper include and library files are found anyway through other means
(e.g. environment variables such as `CPATH` and `LIBRARY_PATH` set in
`sage-env`).
It's pretty clear how you can make it fail:
- build sage and ecl in location `<ORIGINAL>`
- move sage to another location
- put a bogus file `<ORIGINAL>/local/include/ecl/config.h` (or whatever
headers are required) in the old location
now trying to compile a file with ecl will use an invalid header. It's the
usual risk of keeping references to uncontrolled locations in lookup
tables. You may be exposed to arbitrary crap.
(I admit I haven't actually tried. It may be that with the symlink
proposed on #14662 in place, the lookup happens at the right place prior
to the place searched due to the `-I` directive. But that would really
just be a fluke).
I'm a little surprised this suddenly gets marked as blocker when the issue
was known for 2 years.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11359#comment:22>
Sage <http://www.sagemath.org>
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