diff --git a/doc/unw_getcontext.man b/doc/unw_getcontext.man
index 3ec0bf41..c13860bb 100644
--- a/doc/unw_getcontext.man
+++ b/doc/unw_getcontext.man
@@ -1,5 +1,5 @@
 '\" t
-.\" Manual page created with latex2man on Tue Jan 20 16:44:37 PST 2004
+.\" Manual page created with latex2man on Tue Mar 30 16:50:17 PST 2004
 .\" NOTE: This file is generated, DO NOT EDIT.
 .de Vb
 .ft CW
@@ -10,7 +10,7 @@
 
 .fi
 ..
-.TH "UNW\\_GETCONTEXT" "3" "20 January 2004" "Programming Library " "Programming Library "
+.TH "UNW\\_GETCONTEXT" "3" "30 March 2004" "Programming Library " "Programming Library "
 .SH NAME
 unw_getcontext
 \-\- get initial machine\-state 
@@ -41,6 +41,27 @@ stack\-pointer, will be stored.
 This routine is normally implemented as a macro and applications 
 should not attempt to take its address. 
 .PP
+.SH PLATFORM\-SPECIFIC NOTES
+
+.PP
+On IA\-64, unw_context_t
+has a layout that is compatible with 
+that of ucontext_t
+and such structures can be initialized with 
+getcontext()
+instead of unw_getcontext().
+However, the 
+reverse is \fInot\fP
+true and it is \fInot\fP
+safe to use structures 
+initialized by unw_getcontext()
+in places where a structure 
+initialized by getcontext()
+is expected. The reason for this 
+asymmetry is that unw_getcontext()
+is optimized for maximum 
+performance and does not, for example, save the signal mask. 
+.PP
 .SH RETURN VALUE
 
 .PP