Added explicit type casts to work around numeric_limits implementations that use nested enums (unnamed types) rather than bool members.

[SVN r28290]

libs/config

@@ -1 +1 @@
-Subproject commit 9437e043fc4c6a28d1d70ff46cefa957547fed0a
+Subproject commit 65f8b152b7cd3d98cb1993d2df274b823c1063a4