Index: assert.hpp
===================================================================
--- assert.hpp	(revision 76706)
+++ assert.hpp	(working copy)
@@ -42,9 +42,16 @@
                         char const * function, char const * file, long line); // user defined
 } // namespace boost
 
+// BOOST_CURRENT_FUNCTION can produce very long names, that may lead to huge size of output files.
+// So allow user to define current function macro (for example to shorter __FUNCTION__ 
+// macro or to "(unknown)")
+#ifndef BOOST_ASSERT_CURRENT_FUNCTION_NAME
+# define BOOST_ASSERT_CURRENT_FUNCTION_NAME BOOST_CURRENT_FUNCTION
+#endif
+
 #define BOOST_ASSERT(expr) ((expr) \
   ? ((void)0) \
-  : ::boost::assertion_failed(#expr, BOOST_CURRENT_FUNCTION, __FILE__, __LINE__))
+  : ::boost::assertion_failed(#expr, BOOST_ASSERT_CURRENT_FUNCTION_NAME, __FILE__, __LINE__))
 
 #else
 # include <assert.h> // .h to support old libraries w/o <cassert> - effect is the same
@@ -57,6 +64,17 @@
 
 # undef BOOST_ASSERT_MSG
 
+#if !defined(BOOST_DISABLE_ASSERTS) && !defined(NDEBUG)
+
+    // BOOST_CURRENT_FUNCTION can produce very long names, that may lead to huge size of output files.
+    // So allow user to define current function macro (for example to shorter __FUNCTION__ 
+    // macro or to "(unknown)")
+    #ifndef BOOST_ASSERT_MSG_CURRENT_FUNCTION_NAME
+    # define BOOST_ASSERT_MSG_CURRENT_FUNCTION_NAME BOOST_CURRENT_FUNCTION
+    #endif
+
+#endif
+
 #if defined(BOOST_DISABLE_ASSERTS) || defined(NDEBUG)
 
   #define BOOST_ASSERT_MSG(expr, msg) ((void)0)
@@ -73,7 +91,7 @@
 
   #define BOOST_ASSERT_MSG(expr, msg) ((expr) \
     ? ((void)0) \
-    : ::boost::assertion_failed_msg(#expr, msg, BOOST_CURRENT_FUNCTION, __FILE__, __LINE__))
+    : ::boost::assertion_failed_msg(#expr, msg, BOOST_ASSERT_MSG_CURRENT_FUNCTION_NAME, __FILE__, __LINE__))
 
 #else
   #ifndef BOOST_ASSERT_HPP
@@ -116,7 +134,7 @@
   #define BOOST_ASSERT_MSG(expr, msg) ((expr) \
     ? ((void)0) \
     : ::boost::assertion::detail::assertion_failed_msg(#expr, msg, \
-          BOOST_CURRENT_FUNCTION, __FILE__, __LINE__))
+          BOOST_ASSERT_MSG_CURRENT_FUNCTION_NAME, __FILE__, __LINE__))
 #endif
 
 //--------------------------------------------------------------------------------------//