fprintf(f, "/* Auto generated by configure, do not modify! */\n");
fprintf(f, "#ifndef __CONFIGURATION_AUTO__\n");
fprintf(f, "#define __CONFIGURATION_AUTO__\n\n");
fprintf(f, "/* Auto generated by configure, do not modify! */\n");
fprintf(f, "#ifndef __CONFIGURATION_AUTO__\n");
fprintf(f, "#define __CONFIGURATION_AUTO__\n\n");