Added new file math_info to probe for known or suspected math-related problems and setup.

[SVN r31936]

libs/config

@@ -1 +1 @@
-Subproject commit cbba7fdacc042bcce0a8f831c8ac8af6ced94913
+Subproject commit f174a2b657b41eb65c3fce8944d07b5b54b254ba

status/Jamfile

@@ -80,6 +80,7 @@ subinclude libs/xpressive/test ;           # test-suite xpressive
                 <threading>multi <no-warn>config_test.cpp
           ]
            [ run libs/config/test/config_info.cpp : : : <test-info>always_show_run_output ]
+           [ run libs/config/test/math_info.cpp : : : <test-info>always_show_run_output ]
            [ run libs/config/test/abi/abi_test.cpp libs/config/test/abi/main.cpp ]
            [ run libs/config/test/limits_test.cpp <lib>../libs/test/build/boost_test_exec_monitor ]
            [ run libs/config/test/link/main.cpp <dll>../libs/config/test/link/link_test
@@ -186,3 +187,4 @@ subinclude libs/xpressive/test ;           # test-suite xpressive
     ;
 }
 
+