On Sat, 22 Apr 2006, Tom Lane wrote:
> Given that we've already got a test for ICC in there as of today, I'd
> vote for adding -mp1 to CFLAGS if we see it's ICC.
This patch seems to do the trick...
Index: configure.in
===================================================================
RCS file: /home/jeremyd/local/postgres/cvsuproot/pgsql/configure.in,v
retrieving revision 1.460
diff -c -r1.460 configure.in
*** configure.in 22 Apr 2006 00:29:41 -0000 1.460
--- configure.in 25 Apr 2006 06:03:12 -0000
***************
*** 263,268 ****
--- 263,273 ----
# Check whether they are supported, and add them to CFLAGS if so.
PGAC_PROG_CC_CFLAGS_OPT([-Wdeclaration-after-statement])
PGAC_PROG_CC_CFLAGS_OPT([-Wendif-labels])
+ else
+ # Intel compiler has a bug/misoptimization in checking for
+ # division by NAN (NaN == 0), -mp1 fixes it, so add it to the
+ # CFLAGS.
+ PGAC_PROG_CC_CFLAGS_OPT([-mp1])
fi
# Disable strict-aliasing rules; needed for gcc 3.3+
--
A quarrel is quickly settled when deserted by one party; there is no battle
unless there be two. -- Seneca
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