In the module 'fpieee', we are chosing an OSF/1 compiler option that leads
to nearly IEEE compliant code. According to the GCC documentation, the
equivalent of -mieee is -ieee_with_no_inexact. Experiments show that it
is the same as -ieee.
2012-02-26 Bruno Haible <br...@clisp.org>
fpieee: More comments.
* m4/fpieee.m4 (gl_FP_IEEE): Add more comments.
--- m4/fpieee.m4.orig Sun Feb 26 13:41:24 2012
+++ m4/fpieee.m4 Sun Feb 26 13:41:17 2012
@@ -1,4 +1,4 @@
-# fpieee.m4 serial 1
+# fpieee.m4 serial 2
dnl Copyright (C) 2007, 2009-2012 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
@@ -36,9 +36,11 @@
#
<http://h30097.www3.hp.com/docs/base_doc/DOCUMENTATION/V51B_HTML/MAN/MAN3/0600____.HTM>
if test -n "$GCC"; then
# GCC has the option -mieee.
+ # For full IEEE compliance (rarely needed), use option
-mieee-with-inexact.
CPPFLAGS="$CPPFLAGS -mieee"
else
- # Compaq (ex-DEC) C has the option -ieee.
+ # Compaq (ex-DEC) C has the option -ieee, equivalent to
-ieee_with_no_inexact.
+ # For full IEEE compliance (rarely needed), use option
-ieee_with_inexact.
CPPFLAGS="$CPPFLAGS -ieee"
fi
;;
