https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105688
Arsen Arsenović <arsen at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |arsen at gcc dot gnu.org
--- Comment #45 from Arsen Arsenović <arsen at gcc dot gnu.org> ---
to recap what I've found in the bug that just got marked as a dupe:
this is set through a chain of all-target-libstdc++-v3 ->
RAW_CXX_TARGET_EXPORTS -> BASE_TARGET_EXPORTS
the idea here is that newly-built target code should use existing target
libraries rather than $build libraries (which makes sense).
however, the existing approach makes *all* code involved in building target
libs use newly-built libraries, which results in libstdc++ et al being
*downgraded* for make, sh, msgfmt, ld, ... (but not gcc, since the new gcc is
used).
a fix for this might be to build target libraries with adjusted rpaths, or
something similar, but I'm not sure of the full scope of the issue yet (my
debugging this morning was cursory), so I'm not sure if that's sufficient. I'm
also not sure how to deal with static linking - maybe libtool helps?
