diff --git a/scheme/Makefile.am b/scheme/Makefile.am
index 8ec314f..c75f9e2 100644
--- a/scheme/Makefile.am
+++ b/scheme/Makefile.am
@@ -4,8 +4,16 @@ EXTRA_DIST=ikarus.boot.orig ikarus.enumerations.ss ikarus.exceptions.ss ikarus.a
 
 all: $(nodist_pkglib_DATA)
 
-ikarus.config.ss: Makefile
+revnofile = "../.bzr/branch/last-revision"
+revno = "$(shell sed 's/ .*//' $(revnofile))"
+
+if [-f $(revnofile)] ; then \
+  revnodeps = $(revnofile) \
+fi
+
+ikarus.config.ss: Makefile $(revnodeps)
 	echo '(define ikarus-version "$(PACKAGE_VERSION)")' >$@
+	echo '(define ikarus-revision $(revno))' >>$@
 	echo '(define ikarus-lib-dir "$(pkglibdir)")' >>$@
 
 CLEANFILES=$(nodist_pkglib_DATA) ikarus.config.ss
@@ -14,3 +22,6 @@ ikarus.boot: $(EXTRA_DIST) ikarus.config.ss
 	../src/ikarus -b ./ikarus.boot.orig --r6rs-script makefile.ss
 
 # pkglibdir
+# if [-f "../.bzr/branch/last-revision"] \
+#   echo '(define ikarus-reversion "$(PACKAGE_VERSION)")' >>$@ \
+# fi 
diff --git a/scheme/Makefile.in b/scheme/Makefile.in
index bf72687..cfbedaf 100644
--- a/scheme/Makefile.in
+++ b/scheme/Makefile.in
@@ -183,6 +183,8 @@ EXTRA_DIST = ikarus.boot.orig ikarus.enumerations.ss \
 	ikarus/code-objects.ss ikarus/compiler.ss \
 	ikarus/intel-assembler.ss ikarus/fasl/write.ss \
 	unicode/unicode-char-cases.ss unicode/unicode-charinfo.ss
+revnofile = "../.bzr/branch/last-revision"
+revno = "$(shell sed 's/ .*//' $(revnofile))"
 CLEANFILES = $(nodist_pkglib_DATA) ikarus.config.ss
 all: all-am
 
@@ -369,14 +371,22 @@ uninstall-am: uninstall-nodist_pkglibDATA
 
 all: $(nodist_pkglib_DATA)
 
-ikarus.config.ss: Makefile
+if [-f $(revnofile)] ; then \
+  revnodeps = $(revnofile) \
+fi
+
+ikarus.config.ss: Makefile $(revnodeps)
 	echo '(define ikarus-version "$(PACKAGE_VERSION)")' >$@
+	echo '(define ikarus-revision $(revno))' >>$@
 	echo '(define ikarus-lib-dir "$(pkglibdir)")' >>$@
 
 ikarus.boot: $(EXTRA_DIST) ikarus.config.ss
 	../src/ikarus -b ./ikarus.boot.orig --r6rs-script makefile.ss
 
 # pkglibdir
+# if [-f "../.bzr/branch/last-revision"] \
+#   echo '(define ikarus-reversion "$(PACKAGE_VERSION)")' >>$@ \
+# fi 
 # Tell versions [3.59,3.63) of GNU make to not export all variables.
 # Otherwise a system limit (for SysV at least) may be exceeded.
 .NOEXPORT:
diff --git a/scheme/ikarus.main.ss b/scheme/ikarus.main.ss
index d98146a..3d43e77 100644
--- a/scheme/ikarus.main.ss
+++ b/scheme/ikarus.main.ss
@@ -24,7 +24,14 @@
   (include "ikarus.config.ss")
   
   (define (print-greeting)
-    (printf "Ikarus Scheme version ~a\n" ikarus-version)
+    (printf "Ikarus Scheme version ~a\n" 
+      (if (zero? (string-length ikarus-revision))
+          ikarus-version
+          (format "~a+ (revision ~a, build ~a)"
+            ikarus-version
+            ikarus-revision
+            (let-syntax ([ds (lambda (x) (date-string))])
+              ds))))
     (display "Copyright (c) 2006-2007 Abdulaziz Ghuloum\n\n"))
 
   (define (init-library-path)