0.pre7.140:

[sbcl.git] / doc / ffi.sgml

diff --git a/doc/ffi.sgml b/doc/ffi.sgml
index 8db7573..498fd19 100644 (file)
--- a/doc/ffi.sgml
+++ b/doc/ffi.sgml
@@ -5,18 +5,21 @@ function interface should be reviewed, reformatted in DocBook,
 lightly edited for &SBCL;, and substituted into this manual. But in
 the meantime, the original &CMUCL; manual is still 95+% correct for
 the &SBCL; version of the foreign function interface. (The main
-difference is that the package names have changed from
-<quote><literal>ALIEN</></> and <quote><literal>C-CALL</></> to
-<quote><literal>SB-ALIEN</></> and <quote><literal>SB-C-CALL</></>.)
+difference is that the package names have changed. CMU CL's FFI
+is in two packages named <quote><literal>ALIEN</></> and
+<quote><literal>C-CALL</></>. The corresponding SBCL FFI is
+in a single package named 
+<quote><literal>SB-ALIEN</></>.)
         <!-- FIXME: Oh, and I seem to remember that the CMUCL manual
             was out of date about how to test for a null pointer,
             there's a builtin operator to do it, you don't need to
             do the nasty idiom the manual says you need to do. -->
        <!-- FIXME: Also, the CMU CL alien documentation claims you
-            can just do (DEFINE-ALIEN-VARIABLE "errno" INT), which fails
-            with modern multithreading hacks. -->
-       <!-- FIXME: Also, LOAD-FOREIGN isn't implemented as of sbcl-0.6.7,
-            but LOAD-1-FOREIGN is. -->
+            can just do (DEFINE-ALIEN-VARIABLE "errno" INT), but it's
+            wrong. That fails with the multithreading hacks hacks
+            now built into the C library. -->
+       <!-- FIXME: Also, we support not only LOAD-FOREIGN but
+            also LOAD-1-FOREIGN. -->
 See the sections
 <itemizedlist>
   <listitem><para>Type Translations</></>