diff --git a/harbour/ChangeLog b/harbour/ChangeLog
index 055ca475da..9004eb7b4f 100644
--- a/harbour/ChangeLog
+++ b/harbour/ChangeLog
@@ -17,6 +17,10 @@
    past entries belonging to author(s): Viktor Szakats.
 */
 
+2009-06-16 09:13 UTC+0200 Viktor Szakats (harbour.01 syenar.hu)
+  * INSTALL
+    + Two optional envvars got some super extra clarification.
+
 2009-06-16 08:55 UTC+0200 Viktor Szakats (harbour.01 syenar.hu)
   * source/vm/thread.c
     * HB_MUTEXQUEUEINFO() returning logical var.
diff --git a/harbour/INSTALL b/harbour/INSTALL
index 364c7dd666..d80e910220 100644
--- a/harbour/INSTALL
+++ b/harbour/INSTALL
@@ -255,13 +255,13 @@ OPTIONS AVAILABLE WHEN BUILDING HARBOUR
    - HB_CONTRIBLIBS=no         Don't build any contrib libraries.
    - HB_CONTRIBLIBS=[<list>]   Build space separated <list> of contrib
                                libraries. Build all if left empty.
-   - HB_CONTRIB_ADDONS=<list>  Build additional libraries stored
-                               in the contrib directory.
+   - HB_CONTRIB_ADDONS=<list>  Build space separated <list> of additional
+                               libraries stored in the contrib directory.
    - HB_EXTERNALLIBS=no        Don't build any external libraries.
    - HB_EXTERNALLIBS=[<list>]  Build space separated <list> of external
                                libraries. Build all if left empty.
-   - HB_EXTERNAL_ADDONS=<list> Build additional libraries stored
-                               in the external directory.
+   - HB_EXTERNAL_ADDONS=<list> Build space separated <list> of additional
+                               libraries stored in the external directory.
    - HB_VISUALC_VER_PRE80=yes  Set this if you're using a pre-8.0
                                (= pre-MSVS 2005) version of MSVC compiler.
    - HB_REBUILD_PARSER=yes     To rebuild the language parsers. Typically