diff --git a/configure b/configure
index f829580..8676dab 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.in Revision: 45995 .
+# From configure.in Revision: 46010 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.59 for python 2.5.
 #
@@ -3387,7 +3387,14 @@
 	  INSTSONAME="$LDLIBRARY".$SOVERSION
 	  ;;
     hp*|HP*)
-	  LDLIBRARY='libpython$(VERSION).sl'
+	  case `uname -m` in
+		ia64)
+			LDLIBRARY='libpython$(VERSION).so'
+			;;
+		*)
+			LDLIBRARY='libpython$(VERSION).sl'
+			;;
+	  esac
 	  BLDLIBRARY='-Wl,+b,$(LIBDIR) -L. -lpython$(VERSION)'
 	  RUNSHARED=SHLIB_PATH=`pwd`:${SHLIB_PATH}
 	  ;;
@@ -10869,7 +10876,12 @@
 if test -z "$SO"
 then
 	case $ac_sys_system in
-	hp*|HP*)   SO=.sl;;
+	hp*|HP*)
+		case `uname -m` in
+			ia64) SO=.so;;
+	  		*)    SO=.sl;;
+		esac
+		;;
 	CYGWIN*)   SO=.dll;;
 	*)	   SO=.so;;
 	esac
@@ -10887,6 +10899,11 @@
 fi
 echo "$as_me:$LINENO: result: $SO" >&5
 echo "${ECHO_T}$SO" >&6
+
+cat >>confdefs.h <<_ACEOF
+#define SHLIB_EXT "$SO"
+_ACEOF
+
 # LDSHARED is the ld *command* used to create shared library
 # -- "cc -G" on SunOS 5.x, "ld -shared" on IRIX 5
 # (Shared libraries in this instance are shared modules to be loaded into