--- rxvt-unicode/configure.ac	2012/01/19 15:08:55	1.139
+++ rxvt-unicode/configure.ac	2012/01/19 18:17:32	1.140
@@ -26,7 +26,6 @@
 dnl# Checks for programs.
 AC_PROG_CC
 AC_PROG_CXX
-AC_PROG_CPP
 AC_PROG_INSTALL
 
 AC_AIX