Build problem of gnuabi_compatibility.c on i386 with AVX

[shibatch]

Segmentation fault occurs with gnuabi_compatibility.c testing with i386 and AVX. The cause of this problem is that it is using a hack for simplifying the number of macros, and the functions are called with different types of arguments from the API.

We can think of a few ways to resolve this problem.

• Add #ifdef guard to the two functions. This is the current solution.
• Make the source code call the functions with the correct types of arguments.
• Just remove those two functions, since those two are not officially supported.