VMS Help CC, Run-time functions, execle  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  Passes the name of an image to be activated on a child process.
  This function is nonreentrant.

  Syntax:

       #include <unistd.h>

       int execle (char *file-spec, char *argn,..., (char *)0, char
       *envp[]); (POSIX-1)

       int execle (char *file-spec,...); (Compatibility)