tree 0b58135a053a530570d311dde1f5e44d50f48cbe
parent 88a03bb68f24c8d1c2469dc3d2956bcfe515c3b7
author Urvang Joshi <urvang@google.com> 1476741213 -0700
committer Yaowu Xu <yaowu@google.com> 1476889013 -0700

Fix warnings reported by -Wshadow: Part4: main directory

Now that all warnings are taken care of, add warning flag -Wshadow to
configure.

Note: Enabling this flag for C++ generates some useless warnings about
some function parameters shadowing class member function names. So, only
enabling this warning for C code.

Cherry-picked from aomedia/master: b96cbc4

Change-Id: I3922dea2e6976b16519c4aa4d1bd395c198134f1