/* Emulate vfork using just plain fork, for systems without a real vfork. This function is in the public domain. *//*@deftypefn Supplemental int vfork (void)Emulates @code{vfork} by calling @code{fork} and returning its value.@end deftypefn*/#include"ansidecl.h"externintfork(void);intvfork(void){return(fork());}