[PATCH] Win32 build fail with the newest MinGW toolchain
There is a build failure with the newest MinGW toolchain (mingw-w64 git f7337b 20141222, binutils 2.25, gcc 4.9.2):
Failed with: error: static declaration of 'rint' follows non-static
declaration
(examples/encoder_example.c vs. mingw-w64 math.h)
The local static version if rint() can be removed (rint is already used in other places without the local static version).