diff --git a/ChangeLog b/ChangeLog
index 06fc3d18..8de0c9af 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+1999-09-29  Martin Baulig  <martin@home-of-linux.org>
+
+	* configure.in (libgtop_top_builddir): AC_SUBST this.
+
 1999-09-27  Rodrigo Stulzer Lopes <rodrigo@conectiva.com.br>
 
 	* configure.in: Added "pt_BR" to ALL_LINGUAS.
diff --git a/configure.in b/configure.in
index 33d0cd9b..de90045e 100644
--- a/configure.in
+++ b/configure.in
@@ -53,6 +53,10 @@ AC_PROG_CC
 AC_STDC_HEADERS
 AC_ARG_PROGRAM
 
+dnl We need this at some places.
+libgtop_top_builddir=`pwd`
+AC_SUBST(libgtop_top_builddir)
+
 dnl We don't use `AC_PROG_AWK' since it checks for mawk first which
 dnl does not work for libgtop.
 AC_CHECK_PROGS(AWK, gawk awk, )