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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
it).
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>
Note: upstream doesn't want to take this due to long standing behavior, and
because it'd make behavior across OS's inconsistent:
https://gcc.gnu.org/ml/gcc-patches/2003-07/msg02144.html
This makes sense for upstream, but Gentoo is more concerned about packages
behaving the same across arches under Linux.
--- a/gcc/config/alpha/alpha.h
+++ b/gcc/config/alpha/alpha.h
@@ -94,6 +94,8 @@ along with GCC; see the file COPYING3. If not see
while (0)
#endif
+#define CPP_SPEC "%{!no-ieee:-mieee}"
+
/* Run-time compilation parameters selecting different hardware subsets. */
/* Which processor to schedule for. The cpu attribute defines a list that
--- a/gcc/config/alpha/alpha.opt
+++ b/gcc/config/alpha/alpha.opt
@@ -35,7 +35,7 @@
Request IEEE-conformant math library routines (OSF/1).
mieee
-Target RejectNegative Mask(IEEE)
+Target Mask(IEEE)
Emit IEEE-conformant code, without inexact exceptions.
mieee-with-inexact
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