diff -urb -x .svn -x string.o trunk/boost/mpl/string.hpp trunk_patched/boost/mpl/string.hpp
--- trunk/boost/mpl/string.hpp	2009-04-24 17:51:11.000000000 +0400
+++ trunk_patched/boost/mpl/string.hpp	2009-04-24 17:51:01.000000000 +0400
@@ -43,6 +43,7 @@
 #include <boost/preprocessor/repetition/enum_shifted_params.hpp>
 #include <boost/preprocessor/repetition/enum_trailing_params.hpp>
 #include <boost/preprocessor/repetition/enum_params_with_a_default.hpp>
+#include <boost/detail/endian.hpp>
 
 namespace boost { namespace mpl
 {
@@ -51,9 +52,26 @@
 
     // Low-level bit-twiddling is done by macros. Any implementation-defined behavior of
     // multi-character literals should be localized to these macros.
+
     #define BOOST_MPL_MULTICHAR_LENGTH(c)                                                           \
       (std::size_t)((c>0xffffff)+(c>0xffff)+(c>0xff)+1)
 
+    #if defined(BOOST_LITTLE_ENDIAN) && BOOST_WORKAROUND(__SUNPRO_CC, BOOST_TESTED_AT(0x590))
+    #define BOOST_MPL_MULTICHAR_AT(c,i)                                                             \
+      (char)(0xff&(c>>(8*(std::size_t)(i))))
+
+    #define BOOST_MPL_MULTICHAR_PUSH_BACK(c,i)                                                      \
+      ((((unsigned char)(i))<<(BOOST_MPL_MULTICHAR_LENGTH(c)*8))|(c))
+
+    #define BOOST_MPL_MULTICHAR_PUSH_FRONT(c,i)                                                     \
+      (((c)<<8)|(unsigned char)(i))
+
+    #define BOOST_MPL_MULTICHAR_POP_BACK(c)                                                         \
+	  (((1<<((BOOST_MPL_MULTICHAR_LENGTH(c)-1)*8))-1)&(c))
+
+    #define BOOST_MPL_MULTICHAR_POP_FRONT(c)                                                        \
+      ((c)>>8)
+    #else
     #define BOOST_MPL_MULTICHAR_AT(c,i)                                                             \
       (char)(0xff&(c>>(8*(BOOST_MPL_MULTICHAR_LENGTH(c)-(std::size_t)(i)-1))))
 
@@ -68,6 +86,7 @@
 
     #define BOOST_MPL_MULTICHAR_POP_FRONT(c)                                                        \
       (((1<<((BOOST_MPL_MULTICHAR_LENGTH(c)-1)*8))-1)&(c))
+    #endif
 
     struct string_tag;
     struct string_iterator_tag;