diff -Naur x11perf-1.6.0.old/configure.ac x11perf-1.6.0/configure.ac
--- x11perf-1.6.0.old/configure.ac	2015-04-30 15:03:46.668372759 +0200
+++ x11perf-1.6.0/configure.ac	2015-04-30 15:03:56.617354502 +0200
@@ -39,7 +39,7 @@
 XORG_DEFAULT_OPTIONS
 
 # Define the installation directory for the x11 performance compare scripts
-AC_SUBST([x11perfcompdir], [$libdir/X11/x11perfcomp])
+AC_SUBST([x11perfcompdir], [$datadir/X11/x11perfcomp])
 
 # Checks for programs run by the scripts we install
 AC_PATH_PROG(MKTEMP, mktemp)