| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Andres Freund <andres(at)anarazel(dot)de> |
| Cc: | Andrew Gierth <andrew(at)tao11(dot)riddles(dot)org(dot)uk>, Victor Wagner <vitus(at)wagner(dot)pp(dot)ru>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: Bug fix for glibc broke freebsd build in REL_11_STABLE |
| Date: | 2018-12-01 18:30:10 |
| Message-ID: | 29520.1543689010@sss.pgh.pa.us |
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| Thread: | |
| Lists: | pgsql-hackers |
I wrote:
> Looking at the buildfarm, our only extant member that is on x86, and
> is not using clang, and doesn't have -fexcess-precision=standard, is
> dromedary which is using Apple's old toolchain. So the fact that it
> isn't showing the problem isn't very good evidence about how widespread
> this issue might be with older gcc versions.
... and, in fact, a bit of investigation says that that compiler has
-msse2 on by default. So actually we have *no* buildfarm coverage
of x87 math.
I tried forcing the issue with -mfpmath=387, but failed to reproduce
the reported failure. Still, seeing that it's a considerably different
version of gcc, that's not so surprising.
regards, tom lane
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