Release of GCC 5.1 is scheduled for Wednesday, April 22nd.
I took the first release candidate and tried to build Sage 6.6 with it:
* MPIR fails in 'configure' -- easy to fix, see #18247
* Lcalc fails to build -- usual C++ issues, subset of those
with clang, easy to fix, cf. #12437
('-fpermissive' also suffices)
* Sage library -- modules using Lcalc headers won't build for the
same reason (build with '-fpermissive' in
CFLAGS; distutils ignores CXXFLAGS)
* ncurses (a superfluous package anyway) fails to build with
a syntax error(!) -- apparently a bug in the preprocessor,
will hopefully vanish with the final;
setting CPP to use another one works
* gf2x fails in tuning -- results don't agree; presumably (but
not necessarily) a compiler bug,
'-O1' fails in the same way, '-O0'
succeeds; will wait for and retry
with the final, otherwise probably
harder to debug
After all, all tests (ptestlong) passed (modulo #17907).
-leif
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