From: Neal Norwitz <nnorwitz@gmail.com>
Date: Fri, 31 Mar 2006 06:54:45 +0000 (+0000)
Subject: Get gcc to do strict IEEE math.  This flag was already used for cc, just not
X-Git-Tag: v2.5a0~8
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=dedeeaad040cdcb3c72b6f89cd33cc0264ea908d;p=python

Get gcc to do strict IEEE math.  This flag was already used for cc, just not
gcc.  Without this flag, doing pretty much anything with NaNs causes
a Floating Point Exception signal.  This causes the interpreter to quit.
The failing tests this fixes are:  test_float, test_long, and test_struct.
This is somewhat equivalent to doing signal(SIGFPE, SIG_IGN).

Will verify if this is a problem in 2.4 and backport if necessary (probably).
---

diff --git a/configure b/configure
index 36af89eb02..c5b795f491 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.in Revision: 42563 .
+# From configure.in Revision: 43158 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.59 for python 2.5.
 #
@@ -3882,6 +3882,9 @@ echo "${ECHO_T}$ac_cv_no_strict_aliasing_ok" >&6
 	Darwin*)
 	    BASECFLAGS="$BASECFLAGS -Wno-long-double -no-cpp-precomp -mno-fused-madd"
 	    ;;
+	OSF*)
+	    BASECFLAGS="$BASECFLAGS -mieee"
+	    ;;
     esac
     ;;
 
diff --git a/configure.in b/configure.in
index 5d9ec5633c..8a73c4fdd3 100644
--- a/configure.in
+++ b/configure.in
@@ -746,6 +746,9 @@ yes)
 	Darwin*)
 	    BASECFLAGS="$BASECFLAGS -Wno-long-double -no-cpp-precomp -mno-fused-madd"
 	    ;;
+	OSF*)
+	    BASECFLAGS="$BASECFLAGS -mieee"
+	    ;;
     esac
     ;;