#9530: Improve/fix readline workarounds for Arch Linux and openSuSE, again
broken
on OpenSuSE 11.2 and 11.3
------------------------------+---------------------------------------------
Reporter: baechler | Owner: GeorgSWeber
Type: defect | Status: needs_review
Priority: critical | Milestone: sage-4.6
Component: build | Keywords: Arch Linux SuSE readline
Author: Thomas Bächler | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Comment(by baechler):
Replying to [comment:31 leif]:
> The situation with readline and bash is even more specific, since it's
IMHO a bad idea to dynamically link the system shell against it, which is
only the case on OpenSuSE and Arch.
Linking the shell dynamically, as far as I know, has been readline's
default for a long time - other distributions just still use
libreadline.so.5 for this.
> But it's also the readline developers' fault, because they changed the
library's interface without bumping the version number.
You are wrong, this is standard and expected behaviour, at least in the
GNU ld world. Increasing the library SONAME version is only required when
a binary compiled against an older library version will fail to work with
a newer version.
In this case, a binary (bash) compiled against a newer library version
does not work with an older library version. This is normal and will be
the case with all system libraries, even the C library in some cases. The
reason is simple: Nobody ever downgrades system libraries.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9530#comment:32>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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