Issue #1496032. Add -mieee to BASECFLAGS on alpha, when gcc is
the compiler. This should(?) help to fix failures in test_math
and test_cmath on Linux/alpha.
Also add configure message reporting the result of uname -m, as
a debugging aid.
diff --git a/configure b/configure
index 325d410..6009d88 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
#! /bin/sh
-# From configure.in Revision: 62447 .
+# From configure.in Revision: 62451 .
# Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.61 for python 2.6.
#
@@ -2155,6 +2155,12 @@
CONFIGURE_MACOSX_DEPLOYMENT_TARGET=
EXPORT_MACOSX_DEPLOYMENT_TARGET='#'
+{ echo "$as_me:$LINENO: checking machine type as reported by uname -m" >&5
+echo $ECHO_N "checking machine type as reported by uname -m... $ECHO_C" >&6; }
+ac_sys_machine=`uname -m`
+{ echo "$as_me:$LINENO: result: $ac_sys_machine" >&5
+echo "${ECHO_T}$ac_sys_machine" >&6; }
+
# checks for alternative programs
# compiler flags are generated in two sets, BASECFLAGS and OPT. OPT is just
@@ -4532,6 +4538,16 @@
then
BASECFLAGS="$BASECFLAGS -fno-strict-aliasing"
fi
+
+ # if using gcc on alpha, use -mieee to get (near) full IEEE 754
+ # support. Without this, treatment of subnormals doesn't follow
+ # the standard.
+ case $ac_sys_machine in
+ alpha*)
+ BASECFLAGS="$BASECFLAGS -mieee"
+ ;;
+ esac
+
case $ac_sys_system in
SCO_SV*)
BASECFLAGS="$BASECFLAGS -m486 -DSCO5"