How to ignore Wall errors for a portion of code

[Joezac Zachariah]

i,

I am compiling a C code with -Wall -Werror options. In my File I am 
including another C file which has many Wall errors, which I don't want 
to check for. Is there a way I can exclude some portion of code from a 
given file using some kind of #define scheme

void func1()
{
.......
}

#define DISABLE_WERROR 1
include myfile.c
#undef ENABLE_WERROR

void func2()
{
..............
}

Thanks,
Joezac