#10188: mpir spkg needs update for Fedora 14
----------------------------+-----------------------------------------------
Reporter: vbraun | Owner: tbd
Type: defect | Status: needs_review
Priority: major | Milestone: sage-4.6.1
Component: packages | Keywords:
Author: Volker Braun | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Comment(by leif):
It's IMHO cleaner (and more robust) to add
{{{
#!sh
case "$UNAME" in
Linux) # implies a GNU linker
LDFLAGS="$LDFLAGS -Wl,z,noexecstack"
# already exported by sage-env
;;
# perhaps other platforms, too
esac
}}}
Note that the above doesn't depend on the GCC version (or the compiler in
general; the flag to pass options to the linker might of course differ
though, but that's probably handled by libtool).
Even the Sun linker might support that, though it is currently not an
issue on [Open]Solaris.
Older versions of the GNU linker will silently ignore this option, i.e.
its parameter (`noexecstack`); on such systems it is unlikely that
requiring an executable stack will cause problems anyway.
Also, using the `execstack` tool requires having it installed on any build
system one builds bdists on, if they are also targeted at e.g. Fedora 14,
or other SELinux-enabled systems.
{{{
type -P execstack &>/dev/null && ...
}}}
won't raise an error or give a warning in such cases.
Perhaps the MPIR developers will fix this upstream in a quick 2.1.4, such
that it will be a non-issue soon, since we're going to upgrade MPIR
anyway.
Nevertheless, feel free to send them a patch fixing their
autotools/`configure`. ;-)
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10188#comment:9>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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