diff --git a/harbour/ChangeLog b/harbour/ChangeLog
index 0cc3437a5f..8ec434daba 100644
--- a/harbour/ChangeLog
+++ b/harbour/ChangeLog
@@ -17,6 +17,11 @@
    past entries belonging to author(s): Viktor Szakats.
 */
 
+2009-08-17 09:10 UTC+0200 Viktor Szakats (harbour.01 syenar.hu)
+  * config/global.cf
+    + Setting HB_INSTALL_PREFIX (if not set) to PREFIX or DESTDIR (if set,
+      in that order), on *nix systems.
+
 2009-08-16 21:53 UTC-0800 Pritpal Bedi (pritpal@vouchcac.com)
   * contrib/hbxbp/xbpgeneric.prg
     ! Optimized AppEvent()
@@ -72,7 +77,7 @@
   * contrib/hbqt/qth/QRegion.qth
   * contrib/hbqt/qth/QSize.qth
   * contrib/hbqt/qth/QSizeF.qth
-   
+
     ! Tweaked some definitions.
 
 2009-08-16 10:37 UTC+0200 Viktor Szakats (harbour.01 syenar.hu)
diff --git a/harbour/config/global.cf b/harbour/config/global.cf
index 82e7662f20..4d4f6b5abe 100644
--- a/harbour/config/global.cf
+++ b/harbour/config/global.cf
@@ -838,7 +838,7 @@ export HB_PKGNAMI
 HB_INSTALL_PREFIX_ORI := $(HB_INSTALL_PREFIX)
 ifeq ($(HB_BUILD_PKG),yes)
    ifeq ($(HB_INIT_DONE),)
-      export HB_TOP := $(subst /,$(DIRSEP),$(abspath $(TOP)$(ROOT)))
+      export HB_TOP := $(subst /,$(DIRSEP),$(realpath $(TOP)$(ROOT)))
       HB_INSTALL_PREFIX := $(subst /,$(DIRSEP),$(abspath $(PKG_DIR)/$(HB_PKGNAME)))
 
       HB_BIN_INSTALL :=
@@ -853,8 +853,16 @@ else
       ifeq ($(HB_UNIX_COMPATIBLE),no)
          HB_INSTALL_PREFIX := $(realpath $(TOP)$(ROOT))
       else
-         # Stick to *nix customs. I don't like it, it needs admin.
-         HB_INSTALL_PREFIX := /usr/local
+         ifneq ($(PREFIX),)
+            HB_INSTALL_PREFIX := $(PREFIX)
+         else
+            ifneq ($(DESTDIR),)
+               HB_INSTALL_PREFIX := $(DESTDIR)
+            else
+               # Stick to *nix customs. I don't like it, it needs admin.
+               HB_INSTALL_PREFIX := /usr/local
+            endif
+         endif
       endif
 
       HB_INSTALL_PREFIX := $(subst /,$(DIRSEP),$(HB_INSTALL_PREFIX))