Merged revisions 62499 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r62499 | mark.dickinson | 2008-04-25 12:11:04 -0400 (Fri, 25 Apr 2008) | 7 lines
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.in b/configure.in
index a1c044f..43d6ae0 100644
--- a/configure.in
+++ b/configure.in
@@ -333,6 +333,10 @@
CONFIGURE_MACOSX_DEPLOYMENT_TARGET=
EXPORT_MACOSX_DEPLOYMENT_TARGET='#'
+AC_MSG_CHECKING(machine type as reported by uname -m)
+ac_sys_machine=`uname -m`
+AC_MSG_RESULT($ac_sys_machine)
+
# checks for alternative programs
# compiler flags are generated in two sets, BASECFLAGS and OPT. OPT is just
@@ -792,6 +796,16 @@
then
BASECFLAGS="$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"