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Give ICC its preferred, documented form of the no-strict-aliasing

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switch, viz '-fno-alias'.  Since we have a separate code path here
anyway, it's just as easy to cooperate.
This commit is contained in:
Tom Lane
2007-09-11 19:50:25 +00:00
parent 16f8a9e4e1
commit 861f7357b9
2 changed files with 7 additions and 7 deletions
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6
configure.in
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@ -1,5 +1,5 @@
dnl Process this file with autoconf to produce a configure script.
dnl $PostgreSQL: pgsql/configure.in,v 1.524 2007/08/20 08:53:12 petere Exp $
dnl $PostgreSQL: pgsql/configure.in,v 1.525 2007/09/11 19:50:25 tgl Exp $
dnl
dnl Developers, please strive to achieve this order:
dnl
@ -291,8 +291,8 @@ elif test "$ICC" = yes; then
# Intel's compiler has a bug/misoptimization in checking for
# division by NAN (NaN == 0), -mp1 fixes it, so add it to the CFLAGS.
PGAC_PROG_CC_CFLAGS_OPT([-mp1])
# Not clear if this is needed, but seems like a good idea
PGAC_PROG_CC_CFLAGS_OPT([-fno-strict-aliasing])
# ICC prefers to spell the no-strict-aliasing switch like this
PGAC_PROG_CC_CFLAGS_OPT([-fno-alias])
elif test x"${CC}" = x"xlc"; then
# AIX xlc has to have strict aliasing turned off too
PGAC_PROG_CC_CFLAGS_OPT([-qnoansialias])