fixed msvc-stlport builds.

[SVN r21168]

build/Jamfile

@@ -27,6 +27,16 @@ template regex-dll-options
      <runtime-link>dynamic
    ;
 
+#
+# this template defines extra settings required to work 
+# around STLPort defects when used with msvc 6:
+#
+template msvc-stlport-tricky
+   : # sources
+   : <msvc-stlport><*><runtime-build>release
+     <define>BOOST_ALL_NO_LIB=1
+   ;
+
 SOURCES = c_regex_traits c_regex_traits_common cpp_regex_traits
        cregex fileiter posix_api regex regex_debug
        regex_synch w32_regex_traits wide_posix_api instances winstances ;
@@ -61,3 +71,4 @@ install regex lib
     ;
 
 
+