Update buildfix for Clang 3.4

Adding the wrapper to avoid warning "-Wtautological-compare":


#ifdef clang-3.4
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wtautological-compare" //used to avoid warning, force compiler to accept it.
#endif clang-3.4

$Code_Content_Here

#ifdef clang-3.4
#pragma GCC diagnostic pop
#endif clang-3.4

Tested on both GCC and Clang compilers and none of these compilers have this problem.
Merge pull request #4772 from amirzaim/patch-2

Update buildfix for Clang 3.4