Added more verbiage about the instability of the code.

directory/xpcom/README.txt

@@ -2,7 +2,8 @@ This is the home for XPCOM modules that implement LDAP functionality.
 
 WARNING: This code is NOT YET READY FOR PRIME-TIME.  You ALMOST
 CERTAINLY DON'T WANT TO BUILD IT unless you're planning to hack on the
-code.  It is checked in to CVS primarily to allow folks to lend a hand.
+code.  It is currently synchronous, fragile, and only builds on unix.
+It is checked in to CVS primarily to allow folks to lend a hand.
 
 What's Here
 -----------
@@ -11,8 +12,8 @@ Right now, there is only the base component:
 base/	
 	Implements a wrapper around the LDAP C SDK, as well as support
 	for ldap: URLs in the browser.  Written entirely in C++;
-	theoretically only depends on necko, xpcom, and the LDAP C
-	SDK.
+	theoretically only depends on necko, xpcom, nspr, and the LDAP
+	C SDK.
 
 In the not-too-distant future, other components are likely to appear,
 including:
@@ -27,7 +28,7 @@ tests/
 Building
 --------
 This requires various other pieces of infrastructure from the Mozilla
-CVS tree.  See <http://www.mozilla.org/directory/xpcom-build.html>
+CVS tree.  See <http://www.mozilla.org/directory/xpcom.html>
 for now.
 
 Dan Mosedale <dmose@mozilla.org>