--- stdcxx-4.2.1/include/rw/_config-gcc.h 2008-04-24 20:23:43.000000000 -0400

+++ stdcxx-4.2.1/include/rw/_config-gcc.h 2009-07-29 17:11:54.000000000 -0400

@@ -154,6 +154,18 @@

#ifdef _RWSTD_OS_SUNOS

+// Solaris >= S10U6 on SPARC V8:

+// KU 137111-01 && CR 6296770

+// POSIX: pthread_mutex_t and pthread_condvar_t

+// Solaris: mutex_t and condvar_t MUST be aligned on

+// 8-byte boundary.

+// This is relevant on 32-bit SPARCV8 only.

+// 64-bit SPARCV9 already aligns on 8-byte boundary by default.

+

+# if defined(sparc) || defined(__sparc) || defined(__sparc__)

+# define _RWSTD_STRICT_SPARCV8_MUTEX_ALIGNMENT 1

+# endif // sparc || __sparc|| __sparc__

+

// _SOLARIS_THREADS #defined when the -threads option is used on SunOS

# if defined (_SOLARIS_THREADS) && !defined (_RWSTD_SOLARIS_THREADS)

# define _RWSTD_SOLARIS_THREADS