Portability: need special runes for read() returning EIO under job

  control systems.

1 files changed, 2 insertions, 0 deletions

diff --git a/proto.h b/proto.h
index 7d2fe2a..517d357 100644
--- a/proto.h
+++ b/proto.h
@@ -79,6 +79,7 @@ extern char *sys_errlist[];
 #else
 /* BSD: fake it. */
 #define setpgid(pid, pgrp) setpgrp(pid, pgrp)
+#define tcgetpgrp(fd, pgrp) ioctl((fd), TIOCGPGRP)
 #define tcsetpgrp(fd, pgrp) ioctl((fd), TIOCSPGRP, &(pgrp))
 #endif
 
@@ -86,6 +87,7 @@ extern char *sys_errlist[];
 
 /* Nothing doing. */
 #define setpgid()
+#define tcgetpgrp()
 #define tcsetpgrp()
 
 #endif /*HAVE_SETPGRP */