Comment update.

1 files changed, 8 insertions, 0 deletions

diff --git a/src/s/irix6-0.h b/src/s/irix6-0.h
index 90c3346f5a9..f21b92e23b7 100644
--- a/src/s/irix6-0.h
+++ b/src/s/irix6-0.h
@@ -35,6 +35,14 @@
    Larry Hunter <hunter@nlm.nih.gov> said this was needed
    for Irix 6.5.  Let's see if it is safe in 6.N, N<5, as well.  */
 #undef TIOCSIGSEND
+/* Extrapolating from Irix 6.5, the problem is that (at least) the
+   bzero definition breaks what the X headers do.  The following means
+   that we lack prototypes for these functions, and we presumably lose
+   at least in the 64-bit ABI (though that's only supported on Irix
+   6.5, which I can test).  We may be saved by the fact that these
+   appear to be intrinsics in the SGI (Cray) compiler.  It's probably
+   appropriate to include strings.h here, but I can't test it.  See
+   irix6-5.h.  -- fx  */
 #undef bcopy
 #undef bcmp
 #undef bzero