The check for defining the default value of
ffconfigUNICODE_UTF16_SUPPORT was #if( ffconfigUNICODE_UTF16_SUPPORT == 0 )
which resulted in macro redefinition warnings if the application defined
the macro to 0. This commit changes the check to
#if !defined( ffconfigUNICODE_UTF16_SUPPORT ) to ensure that default
value if only defined when the application does not define the macro and
hence, no warning is generated even when the application defines
ffconfigUNICODE_UTF16_SUPPORT to 0.
Signed-off-by: Gaurav Aggarwal <aggarg@amazon.com>
Prior use of strncpy passed the buffer length for n; when the string to copy is
length n or longer, this results in the buffer not containing a null byte. This
is problematic as the buffers are assumed to contain a null byte elsewhere.
Reported here: https://forums.freertos.org/t/freertos-fat-compiler-warnings/14843
