--- lxpolkit-0.1.0/configure.ac~	2011-07-24 13:59:15.000000000 +0200
+++ lxpolkit-0.1.0/configure.ac	2012-08-12 17:06:47.000000000 +0200
@@ -11,6 +11,7 @@
 
 # Checks for programs.
 AC_PROG_CC
+AM_PROG_CC_C_O
 # AM_PROG_LIBTOOL
 
 # Checks for libraries.