/* sigretro.h 4.1 83/08/11 */ /* * Define extra stuff not found in signal.h */ #ifndef SIGRETRO #define SIGRETRO /* Can use this for cond code */ #ifndef SIG_HOLD #define SIG_HOLD (int (*)()) 3 /* Phony action to hold sig */ #define BADSIG (int (*)()) -1 /* Return value on error */ #endif SIG_HOLD #endif SIGRETRO