Original patch from gentoo: gentoo/src/patchsets/gcc/4.3.0/gentoo/00_all_gcc-4.1-alpha-mieee-default.patch

 Set the default behavior on alpha to use -mieee since the large majority of

 time we want this (bad/weird things can happen with packages built without

 -mieee).

 To satisfy those people who may not want -mieee forced on them all the time,

 we also provide -mno-ieee.

 Patch by Mike Frysinger <vapier@gentoo.org>

 diff -durN gcc-4.3.0.orig/gcc/config/alpha/alpha.h gcc-4.3.0/gcc/config/alpha/alpha.h

 --- gcc-4.3.0.orig/gcc/config/alpha/alpha.h	2007-12-06 14:25:37.000000000 +0100

 +++ gcc-4.3.0/gcc/config/alpha/alpha.h	2008-06-10 14:44:06.000000000 +0200

 @@ -95,6 +95,8 @@

    while (0)

  #endif

 +#define CPP_SPEC "%{!no-ieee:-mieee}"

 +

  #define WORD_SWITCH_TAKES_ARG(STR)		\

   (!strcmp (STR, "rpath") || DEFAULT_WORD_SWITCH_TAKES_ARG(STR))

 diff -durN gcc-4.3.0.orig/gcc/config/alpha/alpha.opt gcc-4.3.0/gcc/config/alpha/alpha.opt

 --- gcc-4.3.0.orig/gcc/config/alpha/alpha.opt	2007-08-02 12:49:31.000000000 +0200

 +++ gcc-4.3.0/gcc/config/alpha/alpha.opt	2008-06-10 14:44:06.000000000 +0200

 @@ -39,7 +39,7 @@

  Request IEEE-conformant math library routines (OSF/1)

  mieee

 -Target Report RejectNegative Mask(IEEE)

 +Target Report Mask(IEEE)

  Emit IEEE-conformant code, without inexact exceptions

  mieee-with-inexact