Update build tools for native mingw * src/build-m4.mk: do nothing for native mingw build * Makefile.in: - add bison, m4 as natve mingw, and python as jit build requirements. - remove build-bison as a mingw build dependancy * index.html: Add msys-bison to mingw required packages and mention ghostscript and python.

/*
 * This file is part of MXE.
 * See index.html for further information.
 */

#include <sox.h>

int main(int argc, char *argv[])
{
    (void)argc;
    (void)argv;

    sox_format_init();
    return(0);
}