FFmbc fails compiling with MinGW GCC 5.2

What steps will reproduce the problem?
1. Use MSYS2 ( http://msys2.github.io/ )
2. Try to compile ffmbc 0.74

What is the expected output? What do you see instead?
`C:/builds/gcc52/msys64/mingw32/i686-w64-mingw32/include/io.h: In function 
'_findfirst64i32':
./libavutil/internal.h:148:17: error: implicit declaration of function 
'strncpy_is_forbidden_due_to_security_issues_use_av_strlcpy' 
[-Werror=implicit-function-declaration]
 #define strncpy strncpy_is_forbidden_due_to_security_issues_use_av_strlcpy
                 ^
cc1.exe: some warnings being treated as errors`

What version of the product are you using? On what operating system?
MSYS2/MinGW GCC 5.2 with Windows 8.1 64-bits

Please provide any additional information below:
configure log: 
https://gist.github.com/wiiaboo/ac0e852c91d89327a9c0#file-configure-log
make log: https://gist.github.com/wiiaboo/ac0e852c91d89327a9c0#file-make-log

Original issue reported on code.google.com by wiia...@gmail.com on 6 Aug 2015 at 2:35

felx / ffmbc

FFmbc fails compiling with MinGW GCC 5.2 #195