undef
#ifdef undef
#ifdef undef
extern int MPPC_Compress(u_char **src, u_char **dst, u_long *srcCnt, u_long *dstCnt, char *history, int flags, int undef);
int MPPC_Compress(u_char **src, u_char **dst, u_long *srcCnt, u_long *dstCnt, char *history, int flags, int undef)
undef("pcdac");
#ifdef undef
int undef = 0;
undef = 1;
if (undef && (pri >= 0)) {
if (!undef) {