--- ./src/Makefile.in.orig	2006-04-03 10:02:26.000000000 +0200
+++ ./src/Makefile.in	2006-04-03 10:02:53.000000000 +0200
@@ -469,7 +469,7 @@
 
 install-exec-hook:
 		cd $(DESTDIR)$(bindir) && \
-			( [ -h pstree.x11 ]  || $(LN_S) pstree pstree.x11)
+			$(LN_S) -f pstree pstree.x11
 # 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: