Index: boost/thread/detail/config.hpp
===================================================================
--- boost/thread/detail/config.hpp	(revision 47258)
+++ boost/thread/detail/config.hpp	(working copy)
@@ -45,17 +45,17 @@
 #   endif
 #endif
 
-#if defined(BOOST_HAS_DECLSPEC)
-#   if defined(BOOST_THREAD_BUILD_DLL) //Build dll
-#       define BOOST_THREAD_DECL __declspec(dllexport)
-#   elif defined(BOOST_THREAD_USE_DLL) //Use dll
-#       define BOOST_THREAD_DECL __declspec(dllimport)
-#   else
-#       define BOOST_THREAD_DECL
-#   endif
+#if defined(BOOST_THREAD_BUILD_DLL) //Build dll
+#    define BOOST_THREAD_DECL BOOST_DSO_EXPORT
+#elif defined(BOOST_THREAD_USE_DLL) //Use dll
+#    define BOOST_THREAD_DECL BOOST_DSO_IMPORT
 #else
+#    define BOOST_THREAD_DECL
+#endif
+
+#if !defined(BOOST_THREAD_DECL)
 #   define BOOST_THREAD_DECL
-#endif // BOOST_HAS_DECLSPEC
+#endif
 
 //
 // Automatically link to the correct build variant where possible.
Index: boost/math/tr1.hpp
===================================================================
--- boost/math/tr1.hpp	(revision 47258)
+++ boost/math/tr1.hpp	(working copy)
@@ -20,7 +20,6 @@
 
 #endif // __cplusplus
 
-#ifdef BOOST_HAS_DECLSPEC // defined in config system
 // we need to import/export our code only if the user has specifically
 // asked for it by defining either BOOST_ALL_DYN_LINK if they want all boost
 // libraries to be dynamically linked, or BOOST_MATH_TR1_DYN_LINK
@@ -28,12 +27,11 @@
 #if defined(BOOST_ALL_DYN_LINK) || defined(BOOST_MATH_TR1_DYN_LINK)
 // export if this is our own source, otherwise import:
 #ifdef BOOST_MATH_TR1_SOURCE
-# define BOOST_MATH_TR1_DECL __declspec(dllexport)
+# define BOOST_MATH_TR1_DECL BOOST_DSO_EXPORT
 #else
-# define BOOST_MATH_TR1_DECL __declspec(dllimport)
+# define BOOST_MATH_TR1_DECL BOOST_DSO_IMPORT
 #endif  // BOOST_MATH_TR1_SOURCE
 #endif  // DYN_LINK
-#endif  // BOOST_HAS_DECLSPEC
 //
 // if BOOST_MATH_TR1_DECL isn't defined yet define it now:
 #ifndef BOOST_MATH_TR1_DECL
Index: boost/signals/detail/config.hpp
===================================================================
--- boost/signals/detail/config.hpp	(revision 47258)
+++ boost/signals/detail/config.hpp	(working copy)
@@ -17,15 +17,13 @@
 
 #include <boost/config.hpp>
 
-#ifdef BOOST_HAS_DECLSPEC
-#  if defined(BOOST_ALL_DYN_LINK) || defined(BOOST_SIGNALS_DYN_LINK)
-#    ifdef BOOST_SIGNALS_SOURCE
-#      define BOOST_SIGNALS_DECL __declspec(dllexport)
-#    else
-#      define BOOST_SIGNALS_DECL __declspec(dllimport)
-#    endif  // BOOST_SIGNALS_SOURCE
-#  endif  // DYN_LINK
-#endif  // BOOST_HAS_DECLSPEC
+#if defined(BOOST_ALL_DYN_LINK) || defined(BOOST_SIGNALS_DYN_LINK)
+#  ifdef BOOST_SIGNALS_SOURCE
+#    define BOOST_SIGNALS_DECL BOOST_DSO_EXPORT 
+#  else
+#    define BOOST_SIGNALS_DECL BOOST_DSO_IMPORT
+#  endif  // BOOST_SIGNALS_SOURCE
+#endif  // DYN_LINK
 
 #ifndef BOOST_SIGNALS_DECL
 #  define BOOST_SIGNALS_DECL
Index: boost/wave/wave_config.hpp
===================================================================
--- boost/wave/wave_config.hpp	(revision 47258)
+++ boost/wave/wave_config.hpp	(working copy)
@@ -402,15 +402,14 @@
 
 ///////////////////////////////////////////////////////////////////////////////
 //  Set up dll import/export options
-#if defined(BOOST_HAS_DECLSPEC) && \
-    (defined(BOOST_WAVE_DYN_LINK) || defined(BOOST_ALL_DYN_LINK)) && \
+#if (defined(BOOST_WAVE_DYN_LINK) || defined(BOOST_ALL_DYN_LINK)) && \
     !defined(BOOST_WAVE_STATIC_LINK)
     
 #if defined(BOOST_WAVE_SOURCE)
-#define BOOST_WAVE_DECL __declspec(dllexport)
+#define BOOST_WAVE_DECL BOOST_DSO_EXPORT 
 #define BOOST_WAVE_BUILD_DLL
 #else
-#define BOOST_WAVE_DECL __declspec(dllimport)
+#define BOOST_WAVE_DECL BOOST_DSO_IMPORT
 #endif
 
 #endif // building a shared library
Index: boost/regex/config.hpp
===================================================================
--- boost/regex/config.hpp	(revision 47258)
+++ boost/regex/config.hpp	(working copy)
@@ -180,12 +180,12 @@
  *
  ****************************************************************************/
 
-#if defined(BOOST_HAS_DECLSPEC) && (defined(BOOST_REGEX_DYN_LINK) || defined(BOOST_ALL_DYN_LINK)) && !defined(BOOST_REGEX_STATIC_LINK)
+#if (defined(BOOST_REGEX_DYN_LINK) || defined(BOOST_ALL_DYN_LINK)) && !defined(BOOST_REGEX_STATIC_LINK)
 #  if defined(BOOST_REGEX_SOURCE)
-#     define BOOST_REGEX_DECL __declspec(dllexport)
+#     define BOOST_REGEX_DECL BOOST_DSO_EXPORT
 #     define BOOST_REGEX_BUILD_DLL
 #  else
-#     define BOOST_REGEX_DECL __declspec(dllimport)
+#     define BOOST_REGEX_DECL BOOST_DSO_IMPORT
 #  endif
 #endif
 
Index: boost/filesystem/config.hpp
===================================================================
--- boost/filesystem/config.hpp	(revision 47258)
+++ boost/filesystem/config.hpp	(working copy)
@@ -70,7 +70,6 @@
 #    error Dynamic linking Boost.Filesystem does not work for Borland; use static linking instead
 #  endif
 
-#ifdef BOOST_HAS_DECLSPEC // defined in config system
 // we need to import/export our code only if the user has specifically
 // asked for it by defining either BOOST_ALL_DYN_LINK if they want all boost
 // libraries to be dynamically linked, or BOOST_FILESYSTEM_DYN_LINK
@@ -78,12 +77,11 @@
 #if defined(BOOST_ALL_DYN_LINK) || defined(BOOST_FILESYSTEM_DYN_LINK)
 // export if this is our own source, otherwise import:
 #ifdef BOOST_FILESYSTEM_SOURCE
-# define BOOST_FILESYSTEM_DECL __declspec(dllexport)
+# define BOOST_FILESYSTEM_DECL BOOST_DSO_EXPORT
 #else
-# define BOOST_FILESYSTEM_DECL __declspec(dllimport)
+# define BOOST_FILESYSTEM_DECL BOOST_DSO_IMPORT
 #endif  // BOOST_FILESYSTEM_SOURCE
 #endif  // DYN_LINK
-#endif  // BOOST_HAS_DECLSPEC
 //
 // if BOOST_FILESYSTEM_DECL isn't defined yet define it now:
 #ifndef BOOST_FILESYSTEM_DECL
Index: boost/config.hpp
===================================================================
--- boost/config.hpp	(revision 47258)
+++ boost/config.hpp	(working copy)
@@ -56,6 +56,9 @@
 // get config suffix code:
 #include <boost/config/suffix.hpp>
 
+//macroses for exporting symbols from shared libraries
+#include <boost/config/dso.hpp>
+
 #endif  // BOOST_CONFIG_HPP
 
 
Index: boost/iostreams/detail/config/dyn_link.hpp
===================================================================
--- boost/iostreams/detail/config/dyn_link.hpp	(revision 47258)
+++ boost/iostreams/detail/config/dyn_link.hpp	(working copy)
@@ -20,15 +20,13 @@
 
 //------------------Enable dynamic linking on windows-------------------------// 
 
-#ifdef BOOST_HAS_DECLSPEC 
-# if defined(BOOST_ALL_DYN_LINK) || defined(BOOST_IOSTREAMS_DYN_LINK)
-#  ifdef BOOST_IOSTREAMS_SOURCE
-#   define BOOST_IOSTREAMS_DECL __declspec(dllexport)
-#  else
-#   define BOOST_IOSTREAMS_DECL __declspec(dllimport)
-#  endif  
+#if defined(BOOST_ALL_DYN_LINK) || defined(BOOST_IOSTREAMS_DYN_LINK)
+# ifdef BOOST_IOSTREAMS_SOURCE
+#  define BOOST_IOSTREAMS_DECL BOOST_DSO_EXPORT 
+# else
+#  define BOOST_IOSTREAMS_DECL BOOST_DSO_IMPORT
 # endif  
-#endif 
+#endif  
 
 #ifndef BOOST_IOSTREAMS_DECL
 # define BOOST_IOSTREAMS_DECL
Index: boost/mpi/python/config.hpp
===================================================================
--- boost/mpi/python/config.hpp	(revision 47258)
+++ boost/mpi/python/config.hpp	(working copy)
@@ -20,12 +20,12 @@
  *                                                                           *
  *****************************************************************************/
 
-#if defined(BOOST_HAS_DECLSPEC) && (defined(BOOST_MPI_PYTHON_DYN_LINK) || defined(BOOST_ALL_DYN_LINK)) && !defined(BOOST_MPI_PYTHON_STATIC_LINK)
+#if (defined(BOOST_MPI_PYTHON_DYN_LINK) || defined(BOOST_ALL_DYN_LINK)) && !defined(BOOST_MPI_PYTHON_STATIC_LINK)
 #  if defined(BOOST_MPI_PYTHON_SOURCE)
-#     define BOOST_MPI_PYTHON_DECL __declspec(dllexport)
+#     define BOOST_MPI_PYTHON_DECL BOOST_DSO_EXPORT 
 #     define BOOST_MPI_PYTHON_BUILD_DLL
 #  else
-#     define BOOST_MPI_PYTHON_DECL __declspec(dllimport)
+#     define BOOST_MPI_PYTHON_DECL BOOST_DSO_IMPORT
 #  endif
 #endif
 
Index: boost/mpi/config.hpp
===================================================================
--- boost/mpi/config.hpp	(revision 47258)
+++ boost/mpi/config.hpp	(working copy)
@@ -80,12 +80,12 @@
  *                                                                           *
  *****************************************************************************/
 
-#if defined(BOOST_HAS_DECLSPEC) && (defined(BOOST_MPI_DYN_LINK) || defined(BOOST_ALL_DYN_LINK)) && !defined(BOOST_MPI_STATIC_LINK)
+#if (defined(BOOST_MPI_DYN_LINK) || defined(BOOST_ALL_DYN_LINK)) && !defined(BOOST_MPI_STATIC_LINK)
 #  if defined(BOOST_MPI_SOURCE)
-#     define BOOST_MPI_DECL __declspec(dllexport)
+#     define BOOST_MPI_DECL BOOST_DSO_EXPORT
 #     define BOOST_MPI_BUILD_DLL
 #  else
-#     define BOOST_MPI_DECL __declspec(dllimport)
+#     define BOOST_MPI_DECL BOOST_DSO_IMPORT
 #  endif
 #endif
 
Index: boost/date_time/compiler_config.hpp
===================================================================
--- boost/date_time/compiler_config.hpp	(revision 47258)
+++ boost/date_time/compiler_config.hpp	(working copy)
@@ -96,20 +96,19 @@
  * 
  */
 
-#ifdef BOOST_HAS_DECLSPEC // defined in config system
-   // we need to import/export our code only if the user has specifically
-   // asked for it by defining either BOOST_ALL_DYN_LINK if they want all boost
-   // libraries to be dynamically linked, or BOOST_DATE_TIME_DYN_LINK
-   // if they want just this one to be dynamically liked:
-#  if defined(BOOST_ALL_DYN_LINK) || defined(BOOST_DATE_TIME_DYN_LINK)
+// we need to import/export our code only if the user has specifically
+// asked for it by defining either BOOST_ALL_DYN_LINK if they want all boost
+// libraries to be dynamically linked, or BOOST_DATE_TIME_DYN_LINK
+// if they want just this one to be dynamically liked:
+#if defined(BOOST_ALL_DYN_LINK) || defined(BOOST_DATE_TIME_DYN_LINK)
       // export if this is our own source, otherwise import:
-#     ifdef BOOST_DATE_TIME_SOURCE
-#       define BOOST_DATE_TIME_DECL __declspec(dllexport)
-#     else
-#       define BOOST_DATE_TIME_DECL __declspec(dllimport)
-#     endif  // BOOST_DATE_TIME_SOURCE
-#  endif  // DYN_LINK
-#endif  // BOOST_HAS_DECLSPEC
+#   ifdef BOOST_DATE_TIME_SOURCE
+#     define BOOST_DATE_TIME_DECL BOOST_DSO_EXPORT
+#   else
+#     define BOOST_DATE_TIME_DECL BOOST_DSO_IMPORT
+#   endif  // BOOST_DATE_TIME_SOURCE
+#endif  // DYN_LINK
+
 //
 // if BOOST_WHATEVER_DECL isn't defined yet define it now:
 #ifndef BOOST_DATE_TIME_DECL
Index: boost/graph/graphviz.hpp
===================================================================
--- boost/graph/graphviz.hpp	(revision 47258)
+++ boost/graph/graphviz.hpp	(working copy)
@@ -24,15 +24,13 @@
 #include <boost/graph/adjacency_list.hpp>
 #include <boost/dynamic_property_map.hpp>
 
-#ifdef BOOST_HAS_DECLSPEC
-#  if defined(BOOST_ALL_DYN_LINK) || defined(BOOST_GRAPH_DYN_LINK)
-#    ifdef BOOST_GRAPH_SOURCE
-#      define BOOST_GRAPH_DECL __declspec(dllexport)
-#    else
-#      define BOOST_GRAPH_DECL __declspec(dllimport)
-#    endif  // BOOST_GRAPH_SOURCE
-#  endif  // DYN_LINK
-#endif  // BOOST_HAS_DECLSPEC
+#if defined(BOOST_ALL_DYN_LINK) || defined(BOOST_GRAPH_DYN_LINK)
+#  ifdef BOOST_GRAPH_SOURCE
+#    define BOOST_GRAPH_DECL BOOST_DSO_EXPORT
+#  else
+#    define BOOST_GRAPH_DECL BOOST_DSO_IMPORT
+#  endif  // BOOST_GRAPH_SOURCE
+#endif  // DYN_LINK
 
 #ifndef BOOST_GRAPH_DECL
 #  define BOOST_GRAPH_DECL
Index: boost/program_options/config.hpp
===================================================================
--- boost/program_options/config.hpp	(revision 47258)
+++ boost/program_options/config.hpp	(working copy)
@@ -35,16 +35,14 @@
 
 ///////////////////////////////////////////////////////////////////////////////
 // Windows DLL suport
-#ifdef BOOST_HAS_DECLSPEC
 #if defined(BOOST_ALL_DYN_LINK) || defined(BOOST_PROGRAM_OPTIONS_DYN_LINK)
 // export if this is our own source, otherwise import:
 #ifdef BOOST_PROGRAM_OPTIONS_SOURCE
-# define BOOST_PROGRAM_OPTIONS_DECL __declspec(dllexport)
+# define BOOST_PROGRAM_OPTIONS_DECL BOOST_DSO_EXPORT 
 #else
-# define BOOST_PROGRAM_OPTIONS_DECL __declspec(dllimport)
+# define BOOST_PROGRAM_OPTIONS_DECL BOOST_DSO_IMPORT
 #endif  // BOOST_PROGRAM_OPTIONS_SOURCE
 #endif  // DYN_LINK
-#endif  // BOOST_HAS_DECLSPEC
 
 #ifndef BOOST_PROGRAM_OPTIONS_DECL
 #define BOOST_PROGRAM_OPTIONS_DECL
Index: boost/config/dso.hpp
===================================================================
--- boost/config/dso.hpp	(revision 0)
+++ boost/config/dso.hpp	(revision 0)
@@ -0,0 +1,34 @@
+#ifndef BOOST_CONFIG_DYNAMIC_SHARED_OBJECT_SYMBOL_EXPORT_HPP
+#define BOOST_CONFIG_DYNAMIC_SHARED_OBJECT_SYMBOL_EXPORT_HPP
+
+
+//note: for gcc -fvisibility=hidden flag should be passed to compiler
+#if defined __GNUC__ && __GNUC__ >= 4
+
+#  define BOOST_DSO_EXPORT __attribute__((visibility("default")))
+#  define BOOST_DSO_HIDE   __attribute__((visibility("hidden")))
+#  define BOOST_DSO_IMPORT
+#  define BOOST_DSO_EXPORT_EXCEPTION BOOST_DSO_EXPORT
+#  define BOOST_DSO_IMPORT_EXCEPTION BOOST_DSO_EXPORT
+
+#elif defined _MSC_VER || defined __BORLANDC__
+
+#  define BOOST_DSO_EXPORT __declspec(dllexport)
+#  define BOOST_DSO_HIDE
+#  define BOOST_DSO_IMPORT __declspec(dllimport)
+#  define BOOST_DSO_EXPORT_EXCEPTION BOOST_DSO_EXPORT
+#  define BOOST_DSO_IMPORT_EXCEPTION BOOST_DSO_IMPORT
+
+#endif
+
+
+#if !defined BOOST_DSO_EXPORT 
+#  define BOOST_DSO_EXPORT
+#  define BOOST_DSO_HIDE
+#  define BOOST_DSO_IMPORT
+#  define BOOST_DSO_EXPORT_EXCEPTION
+#  define BOOST_DSO_IMPORT_EXCEPTION
+#endif
+
+#endif
+
Index: boost/system/config.hpp
===================================================================
--- boost/system/config.hpp	(revision 47258)
+++ boost/system/config.hpp	(working copy)
@@ -31,7 +31,6 @@
 //#    error Dynamic linking Boost.System does not work for Borland; use static linking instead
 //#  endif
 
-#ifdef BOOST_HAS_DECLSPEC // defined in config system
 // we need to import/export our code only if the user has specifically
 // asked for it by defining either BOOST_ALL_DYN_LINK if they want all boost
 // libraries to be dynamically linked, or BOOST_SYSTEM_DYN_LINK
@@ -39,12 +38,11 @@
 #if defined(BOOST_ALL_DYN_LINK) || defined(BOOST_SYSTEM_DYN_LINK)
 // export if this is our own source, otherwise import:
 #ifdef BOOST_SYSTEM_SOURCE
-# define BOOST_SYSTEM_DECL __declspec(dllexport)
+# define BOOST_SYSTEM_DECL BOOST_DSO_EXPORT
 #else
-# define BOOST_SYSTEM_DECL __declspec(dllimport)
+# define BOOST_SYSTEM_DECL BOOST_DSO_IMPORT
 #endif  // BOOST_SYSTEM_SOURCE
 #endif  // DYN_LINK
-#endif  // BOOST_HAS_DECLSPEC
 //
 // if BOOST_SYSTEM_DECL isn't defined yet define it now:
 #ifndef BOOST_SYSTEM_DECL
Index: boost/test/detail/config.hpp
===================================================================
--- boost/test/detail/config.hpp	(revision 47258)
+++ boost/test/detail/config.hpp	(working copy)
@@ -84,11 +84,11 @@
 #if defined(BOOST_TEST_DYN_LINK)
 #  define BOOST_TEST_ALTERNATIVE_INIT_API
 
-#  if defined(BOOST_HAS_DECLSPEC) && defined(BOOST_TEST_DYN_LINK)
+#  if defined(BOOST_TEST_DYN_LINK)
 #    ifdef BOOST_TEST_SOURCE
-#      define BOOST_TEST_DECL __declspec(dllexport)
+#      define BOOST_TEST_DECL BOOST_DSO_EXPORT
 #    else
-#      define BOOST_TEST_DECL __declspec(dllimport)
+#      define BOOST_TEST_DECL BOOST_DSO_IMPORT
 #    endif  // BOOST_TEST_SOURCE
 #  endif  // BOOST_HAS_DECLSPEC
 #endif  // BOOST_TEST_DYN_LINK
Index: libs/mpi/build/Jamfile.v2
===================================================================
--- libs/mpi/build/Jamfile.v2	(revision 47258)
+++ libs/mpi/build/Jamfile.v2	(working copy)
@@ -17,6 +17,8 @@
 {
 
 project boost/mpi
+  : requirements
+    <toolset>gcc,<link>shared:<cxxflags>"-fvisibility=hidden"
   : source-location ../src
   ;
 
@@ -110,4 +112,4 @@
   ECHO "note: otherwise, you can safely ignore this message." ;
 }
 
-boost-install $(libraries) ;
\ No newline at end of file
+boost-install $(libraries) ;
Index: libs/date_time/build/Jamfile.v2
===================================================================
--- libs/date_time/build/Jamfile.v2	(revision 47258)
+++ libs/date_time/build/Jamfile.v2	(working copy)
@@ -20,6 +20,7 @@
         <define>DATE_TIME_INLINE
 	<link>shared:<define>BOOST_ALL_DYN_LINK=1	
 	<link>static:<define>BOOST_DATE_TIME_STATIC_LINK	
+   <toolset>gcc,<link>shared:<cxxflags>"-fvisibility=hidden"
     : usage-requirements 	
         <define>DATE_TIME_INLINE
         <link>shared:<define>BOOST_DATE_TIME_DYN_LINK=1
Index: libs/graph/build/Jamfile.v2
===================================================================
--- libs/graph/build/Jamfile.v2	(revision 47258)
+++ libs/graph/build/Jamfile.v2	(working copy)
@@ -5,7 +5,9 @@
 # http://www.boost.org/LICENSE_1_0.txt)
 
 project boost/graph
-    : requirements <include>../src
+    : requirements
+      <include>../src
+      <toolset>gcc,<link>shared:<cxxflags>"-fvisibility=hidden"
     : source-location ../src
     ;
 
@@ -52,4 +54,4 @@
     $(optional_reqs)
     ;
 
-boost-install boost_graph ;
\ No newline at end of file
+boost-install boost_graph ;
Index: libs/thread/build/Jamfile.v2
===================================================================
--- libs/thread/build/Jamfile.v2	(revision 47258)
+++ libs/thread/build/Jamfile.v2	(working copy)
@@ -41,6 +41,7 @@
     : requirements <threading>multi
       <link>static:<define>BOOST_THREAD_BUILD_LIB=1
       <link>shared:<define>BOOST_THREAD_BUILD_DLL=1
+      <toolset>gcc,<link>shared:<cxxflags>"-fvisibility=hidden"
       -<tag>@$(BOOST_JAMROOT_MODULE)%$(BOOST_JAMROOT_MODULE).tag
       <tag>@$(__name__).tag
     : default-build <threading>multi
Index: libs/program_options/build/Jamfile.v2
===================================================================
--- libs/program_options/build/Jamfile.v2	(revision 47258)
+++ libs/program_options/build/Jamfile.v2	(working copy)
@@ -1,5 +1,7 @@
 
 project boost/program_options 
+    : requirements
+      <toolset>gcc,<link>shared:<cxxflags>"-fvisibility=hidden"
     :
     source-location ../src 
     ;
@@ -17,4 +19,4 @@
     <link>shared:<define>BOOST_PROGRAM_OPTIONS_DYN_LINK=1 # tell source we're building dll's
     ;
 
-boost-install boost_program_options ;
\ No newline at end of file
+boost-install boost_program_options ;
Index: libs/system/build/Jamfile.v2
===================================================================
--- libs/system/build/Jamfile.v2	(revision 47258)
+++ libs/system/build/Jamfile.v2	(working copy)
@@ -8,6 +8,8 @@
 # See library home page at http://www.boost.org/libs/system
 
 project boost/system
+    : requirements
+      <toolset>gcc,<link>shared:<cxxflags>"-fvisibility=hidden"
     : source-location ../src
     : usage-requirements  # pass these requirement to dependents (i.e. users)
       <link>shared:<define>BOOST_SYSTEM_DYN_LINK=1
@@ -22,4 +24,4 @@
      <link>static:<define>BOOST_SYSTEM_STATIC_LINK=1
    ;
 
-boost-install boost_system ;
\ No newline at end of file
+boost-install boost_system ;
Index: libs/math/build/Jamfile.v2
===================================================================
--- libs/math/build/Jamfile.v2	(revision 47258)
+++ libs/math/build/Jamfile.v2	(working copy)
@@ -5,6 +5,11 @@
 
 import testing ;
 
+project boost/math
+   : requirements
+     <toolset>gcc,<link>shared:<cxxflags>"-fvisibility=hidden"
+   ;   
+
 C99_SOURCES = acosh
 asinh
 atanh
Index: libs/signals/build/Jamfile.v2
===================================================================
--- libs/signals/build/Jamfile.v2	(revision 47258)
+++ libs/signals/build/Jamfile.v2	(working copy)
@@ -7,7 +7,9 @@
 
 # For more information, see http://www.boost.org
 
-project boost/signals 
+project boost/signals
+    : requirements
+      <toolset>gcc,<link>shared:<cxxflags>"-fvisibility=hidden" 
     : source-location ../src
     ;
 
@@ -20,4 +22,4 @@
         <link>shared:<define>BOOST_SIGNALS_DYN_LINK=1
     ;
 
-boost-install boost_signals ;
\ No newline at end of file
+boost-install boost_signals ;
Index: libs/wave/build/Jamfile.v2
===================================================================
--- libs/wave/build/Jamfile.v2	(revision 47258)
+++ libs/wave/build/Jamfile.v2	(working copy)
@@ -13,6 +13,7 @@
       <link>shared:<define>BOOST_ALL_DYN_LINK=1
       <toolset>msvc-8.0:<define>_SCL_SECURE_NO_DEPRECATE
       <toolset>msvc-8.0:<define>_CRT_SECURE_NO_DEPRECATE
+      <toolset>gcc,<link>shared:<cxxflags>"-fvisibility=hidden"
     : source-location ../src
     ;
 
Index: libs/regex/build/Jamfile.v2
===================================================================
--- libs/regex/build/Jamfile.v2	(revision 47258)
+++ libs/regex/build/Jamfile.v2	(working copy)
@@ -4,6 +4,8 @@
 # http://www.boost.org/LICENSE_1_0.txt.
 
 project boost/regex
+    : requirements
+      <toolset>gcc,<link>shared:<cxxflags>"-fvisibility=hidden"
     : source-location ../src
     ;
 
Index: libs/test/build/Jamfile.v2
===================================================================
--- libs/test/build/Jamfile.v2	(revision 47258)
+++ libs/test/build/Jamfile.v2	(working copy)
@@ -9,6 +9,7 @@
     : requirements <link>shared:<define>BOOST_TEST_DYN_LINK=1
                    <toolset>msvc:<asynch-exceptions>on
                    <toolset>borland:<cxxflags>-w-8080
+                   <toolset>gcc,<link>shared:<cxxflags>"-fvisibility=hidden"  
            # Disable Warning about boost::noncopyable not being exported
            <link>shared,<toolset>msvc:<cxxflags>-wd4275
     : usage-requirements
@@ -85,4 +86,4 @@
 boost-install boost_prg_exec_monitor 
               boost_test_exec_monitor
 	      boost_unit_test_framework ;
-	      
\ No newline at end of file
+	      
Index: libs/filesystem/build/Jamfile.v2
===================================================================
--- libs/filesystem/build/Jamfile.v2	(revision 47258)
+++ libs/filesystem/build/Jamfile.v2	(working copy)
@@ -9,6 +9,8 @@
 # See library home page at http://www.boost.org/libs/filesystem
 
 project boost/filesystem
+    : requirements
+      <toolset>gcc,<link>shared:<cxxflags>"-fvisibility=hidden"
     : source-location ../src
     : usage-requirements # pass these requirement to dependents (i.e. users)
       <link>shared:<define>BOOST_FILESYSTEM_DYN_LINK=1
@@ -29,4 +31,4 @@
     :
     ;
 
-boost-install boost_filesystem ;
\ No newline at end of file
+boost-install boost_filesystem ;
Index: libs/iostreams/build/Jamfile.v2
===================================================================
--- libs/iostreams/build/Jamfile.v2	(revision 47258)
+++ libs/iostreams/build/Jamfile.v2	(working copy)
@@ -7,7 +7,10 @@
 
 # See http://www.boost.org/libs/iostreams for documentation.
 
-project /boost/iostreams : source-location ../src ;
+project /boost/iostreams
+    : requirements
+      <toolset>gcc,<link>shared:<cxxflags>"-fvisibility=hidden"
+    : source-location ../src ;
 
 # The biggest trick in this Jamfile is to link to zlib and bzip2 when
 # needed. To configure that, a number of variables are used, which must