diff --git a/harbour/ChangeLog b/harbour/ChangeLog
index 359222a0f8..2a618e99ef 100644
--- a/harbour/ChangeLog
+++ b/harbour/ChangeLog
@@ -17,6 +17,33 @@
    past entries belonging to author(s): Viktor Szakats.
 */
 
+2009-08-28 14:00 UTC+0200 Viktor Szakats (harbour.01 syenar.hu)
+  * INSTALL
+    * Updated Ubuntu external pkg list.
+    + Added slang to darwin external pkg list.
+
+  * config/darwin/libs.mk
+    + Added two syslib paths required for slang (gtsln).
+
+  * utils/hbmk2/hbmk2.prg
+    ! Fixed to add user GTs before the list of user libs.
+      This is to ensure proper linkage with linkers which need
+      this (mingw f.e. and all which used lib grouping switches
+      before they were removed from hbmk2/make in Harbour)
+
+  * config/bin.mk
+  * config/dyn.mk
+    + Added new HB_LINKING_VMMT variable, which is set to non-empty
+      if hbvmmt is to be linked. It makes it possible to add
+      MT dependent libs to sys lib list, if needed.
+
+  * config/linux/libs.mk
+    + Adding pthread lib when HB_LINKING_VMMT is set. This isn't
+      needed on my *nix systems (Ubuntu and Darwin), but was used
+      for all platforms in postinst.sh dynlib creation logic, so
+      please speak up if we should add this lib to other *nix
+      platforms, or we can delete it from Linux.
+
 2009-08-28 08:53 UTC+0200 Viktor Szakats (harbour.01 syenar.hu)
   * bin/hb-func.sh
     ! Fixed recent mistake in gpm detection at postinst (now redundant)
diff --git a/harbour/INSTALL b/harbour/INSTALL
index 3d581d1af2..ac492ab339 100644
--- a/harbour/INSTALL
+++ b/harbour/INSTALL
@@ -249,14 +249,14 @@ HOW TO ENABLE OPTIONAL COMPONENTS BEFORE BUILD
    -----------------
       1.) Install MacPorts, follow their instructions:
           http://www.macports.org/
-      2.) sudo port install allegro freeimage gd2 mysql5-devel postgresql83
+      2.) sudo port install slang allegro freeimage gd2 mysql5-devel postgresql83
 
    Linux (generic)
    ---------------
 
       For contrib/rddads lib:
       Download and install 'Advantage Client Engine API for Linux' package
-      (f.e. aceapi-9.00.0.0.tar.gz)
+      (f.e. aceapi-9.10.0.0.tar.gz)
 
       For contrib/hbhpdf lib:
       Download libharu from http://libharu.org/ -> './configure' -> 'make install'
@@ -265,21 +265,20 @@ HOW TO ENABLE OPTIONAL COMPONENTS BEFORE BUILD
    ----------------------
    (tested with Ubuntu 7.04, 8.04, 9.04)
 
-      for gtcrs terminal lib:          sudo apt-get install libncurses-dev
-      for gtsln terminal lib:          sudo apt-get install libslang2-dev
-      for gtxwc terminal lib:          sudo apt-get install libx11-dev
-      for console mouse (GPM) support: sudo apt-get install libgpmg1-dev
-      for contrib/hbodbc lib:          sudo apt-get install unixodbc-dev
-      for contrib/hbcurl lib:          sudo apt-get install libcurl4-openssl-dev OR
-                                       sudo apt-get install libcurl4-gnutls-dev
-      for contrib/hbfbird lib:         sudo apt-get install libfirebird2.0-dev OR
-                                       sudo apt-get install firebird2.1-dev
-      for contrib/hbfimage lib:        sudo apt-get install libfreeimage-dev
-      for contrib/hbgd lib:            sudo apt-get install libgd2-xpm-dev OR
-                                       sudo apt-get install libgd-xpm-dev
-      for contrib/hbmysql lib:         sudo apt-get install libmysqlclient15-dev
-      for contrib/hbpgsql lib:         sudo apt-get install libpq-dev
-      for contrib/hbqt lib:            sudo apt-get install libqt4-dev
+      for gtcrs terminal lib:    sudo apt-get install libncurses-dev
+      for gtsln terminal lib:    sudo apt-get install libslang2-dev
+      for gtxwc terminal lib:    sudo apt-get install libx11-dev
+      for console mouse support: sudo apt-get install libgpm-dev OR libgpmg1-dev
+      for contrib/hbodbc lib:    sudo apt-get install unixodbc-dev
+      for contrib/hbcurl lib:    sudo apt-get install libcurl4-openssl-dev
+      for contrib/hbfbird lib:   sudo apt-get install firebird2.1-dev OR
+                                 sudo apt-get install libfirebird2.0-dev
+      for contrib/hbfimage lib:  sudo apt-get install libfreeimage-dev
+      for contrib/hbgd lib:      sudo apt-get install libgd2-xpm-dev OR
+                                 sudo apt-get install libgd-xpm-dev
+      for contrib/hbmysql lib:   sudo apt-get install libmysqlclient15-dev
+      for contrib/hbpgsql lib:   sudo apt-get install libpq-dev
+      for contrib/hbqt lib:      sudo apt-get install libqt4-dev
 
    Linux (openSUSE)
    ----------------
diff --git a/harbour/config/bin.mk b/harbour/config/bin.mk
index 0feaef997c..03b4e42982 100644
--- a/harbour/config/bin.mk
+++ b/harbour/config/bin.mk
@@ -52,10 +52,14 @@ HB_LIBS_TPL :=
 _HB_RDD :=
 _HB_VM :=
 
+HB_LINKING_RTL :=
+HB_LINKING_VMMT :=
+
 ifneq ($(filter hbrtl, $(LIBS)),)
    HB_LINKING_RTL := yes
-else
-   HB_LINKING_RTL :=
+   ifneq ($(filter hbvmmt, $(LIBS)),)
+      HB_LINKING_VMMT := yes
+   endif
 endif
 
 -include $(TOP)$(ROOT)config/$(HB_PLATFORM)/libs.mk
diff --git a/harbour/config/darwin/libs.mk b/harbour/config/darwin/libs.mk
index 7397415f61..d6db25fc6a 100644
--- a/harbour/config/darwin/libs.mk
+++ b/harbour/config/darwin/libs.mk
@@ -18,6 +18,7 @@ ifneq ($(HB_LINKING_RTL),)
       ifneq ($(HB_HAS_CURSES),)
          SYSLIBS += $(HB_CRS_LIB)
       endif
+      SYSLIBPATHS += /sw/lib /opt/local/lib
    endif
    ifneq ($(HB_HAS_X11),)
       SYSLIBS += X11
diff --git a/harbour/config/dyn.mk b/harbour/config/dyn.mk
index a16513e8cb..b7912625d4 100644
--- a/harbour/config/dyn.mk
+++ b/harbour/config/dyn.mk
@@ -7,10 +7,14 @@ include $(TOP)$(ROOT)config/global.mk
 ifneq ($(HB_PLATFORM),)
 ifneq ($(HB_COMPILER),)
 
+HB_LINKING_RTL :=
+HB_LINKING_VMMT :=
+
 ifneq ($(DYNNAME),)
    HB_LINKING_RTL := yes
-else
-   HB_LINKING_RTL :=
+   ifneq ($(findstring vmmt, $(DYNDIRLIST)),)
+      HB_LINKING_VMMT := yes
+   endif
 endif
 
 -include $(TOP)$(ROOT)config/$(HB_PLATFORM)/libs.mk
diff --git a/harbour/config/linux/libs.mk b/harbour/config/linux/libs.mk
index 58cae89c10..727e67d751 100644
--- a/harbour/config/linux/libs.mk
+++ b/harbour/config/linux/libs.mk
@@ -33,6 +33,10 @@ ifneq ($(HB_LINKING_RTL),)
       SYSLIBS += z
    endif
    SYSLIBS += rt dl
+   # Don't seem to be needed here, but added it for reference to move/copy it to *nix platforms where this is required
+   ifneq ($(HB_LINKING_VMMT),)
+      SYSLIBS += pthread
+   endif
 endif
 
 SYSLIBS += m
diff --git a/harbour/utils/hbmk2/hbmk2.prg b/harbour/utils/hbmk2/hbmk2.prg
index 86a72871b3..40d8dad228 100644
--- a/harbour/utils/hbmk2/hbmk2.prg
+++ b/harbour/utils/hbmk2/hbmk2.prg
@@ -1902,7 +1902,7 @@ FUNCTION hbmk( aArgs, /* @ */ lPause, /* @ */ lUTF8 )
       ENDIF
 
       /* Merge user libs from command line and envvar. Command line has priority. */
-      hbmk[ _HBMK_aLIBUSER ] := ArrayAJoin( { hbmk[ _HBMK_aLIBUSER ], hbmk[ _HBMK_aLIBUSERGT ], ListToArray( PathSepToTarget( hbmk, GetEnv( "HB_USER_LIBS" ) ) ) } )
+      hbmk[ _HBMK_aLIBUSER ] := ArrayAJoin( { hbmk[ _HBMK_aLIBUSERGT ], hbmk[ _HBMK_aLIBUSER ], ListToArray( PathSepToTarget( hbmk, GetEnv( "HB_USER_LIBS" ) ) ) } )
 
       DEFAULT hbmk[ _HBMK_lSHAREDDIST ] TO lSysLoc
 
@@ -1968,8 +1968,9 @@ FUNCTION hbmk( aArgs, /* @ */ lPause, /* @ */ lUTF8 )
       /* Assemble library list */
 
       IF ! Empty( hbmk[ _HBMK_cGT ] ) .AND. !( Lower( hbmk[ _HBMK_cGT ] ) == "gtnul" )
-         IF AScan( hbmk[ _HBMK_aLIBCOREGT ], {|tmp| Lower( tmp ) == Lower( hbmk[ _HBMK_cGT ] ) } ) == 0
-            AAdd( hbmk[ _HBMK_aLIBCOREGT ], hbmk[ _HBMK_cGT ] )
+         IF AScan( hbmk[ _HBMK_aLIBCOREGT ], {|tmp| Lower( tmp ) == Lower( hbmk[ _HBMK_cGT ] ) } ) == 0 .AND. ;
+            AScan( hbmk[ _HBMK_aLIBUSERGT ], {|tmp| Lower( tmp ) == Lower( hbmk[ _HBMK_cGT ] ) } ) == 0
+            AAdd( hbmk[ _HBMK_aLIBUSERGT ], hbmk[ _HBMK_cGT ] )
          ENDIF
       ENDIF