Update from version 2.0.0.21 to 2.0.0.21nb1.

Pkgsrc changes:
 o For the benefit of 64-bit strict alignment archs using gcc, such
   as NetBSD/sparc64, ensure that the specially crafted double values
   are properly aligned.  Thanks to martin@ for pointing to the problem.

   This should stop regxpcom from dropping core on NetBSD/sparc64.

OK'ed by wiz@


(he)

$NetBSD: patch-ea,v 1.1 2009/06/19 11:34:31 he Exp $

For the benefit of 64-bit strict alignment archs using gcc, such
as NetBSD/sparc64, ensure that the specially crafted double values
are properly aligned.

--- extensions/transformiix/source/base/Double.cpp.orig	2006-06-22 21:13:00.000000000 +0200
+++ extensions/transformiix/source/base/Double.cpp
@@ -95,8 +95,12 @@ typedef union txdpun {
 #define TX_DOUBLE_HI32(x) (__extension__ ({ txdpun u; u.d = (x); u.s.hi; }))
 #define TX_DOUBLE_LO32(x) (__extension__ ({ txdpun u; u.d = (x); u.s.lo; }))
 
+#define __d_align	__attribute__ ((aligned (__alignof__(double))))
+
 #else // __GNUC__
 
+#define __d_align	/* Empty */
+
 /* We don't know of any non-gcc compilers that perform alias optimization,
  * so this code should work.
  */
@@ -117,17 +121,19 @@ typedef union txdpun {
 
 //-- Initialize Double related constants
 #ifdef IS_BIG_ENDIAN
-const PRUint32 nanMask[2] =    {TX_DOUBLE_HI32_EXPMASK | TX_DOUBLE_HI32_MANTMASK,
+const PRUint32 nanMask[2] __d_align =    {TX_DOUBLE_HI32_EXPMASK | TX_DOUBLE_HI32_MANTMASK,
                                 0xffffffff};
-const PRUint32 infMask[2] =    {TX_DOUBLE_HI32_EXPMASK, 0};
-const PRUint32 negInfMask[2] = {TX_DOUBLE_HI32_EXPMASK | TX_DOUBLE_HI32_SIGNBIT, 0};
+const PRUint32 infMask[2] __d_align =    {TX_DOUBLE_HI32_EXPMASK, 0};
+const PRUint32 negInfMask[2] __d_align = {TX_DOUBLE_HI32_EXPMASK | TX_DOUBLE_HI32_SIGNBIT, 0};
 #else
-const PRUint32 nanMask[2] =    {0xffffffff,
+const PRUint32 nanMask[2] __d_align =    {0xffffffff,
                                 TX_DOUBLE_HI32_EXPMASK | TX_DOUBLE_HI32_MANTMASK};
-const PRUint32 infMask[2] =    {0, TX_DOUBLE_HI32_EXPMASK};
-const PRUint32 negInfMask[2] = {0, TX_DOUBLE_HI32_EXPMASK | TX_DOUBLE_HI32_SIGNBIT};
+const PRUint32 infMask[2] __d_align =    {0, TX_DOUBLE_HI32_EXPMASK};
+const PRUint32 negInfMask[2] __d_align = {0, TX_DOUBLE_HI32_EXPMASK | TX_DOUBLE_HI32_SIGNBIT};
 #endif
 
+#undef __d_align
+
 const double Double::NaN = *((double*)nanMask);
 const double Double::POSITIVE_INFINITY = *((double*)infMask);
 const double Double::NEGATIVE_INFINITY = *((double*)negInfMask);