=== modified file 'configure.ac'
--- configure.ac	2012-12-07 21:39:17 +0000
+++ configure.ac	2013-02-19 22:02:03 +0000
@@ -19,11 +19,17 @@
 AM_GNU_GETTEXT()
 
 # Checks for programs.
+AC_PROG_AWK
 AC_PROG_CC
 PKG_PROG_PKG_CONFIG([0.22])
 
 AC_PATH_PROG([NIH_DBUS_TOOL], [nih-dbus-tool])
 
+AC_PATH_TOOL(GPERF, gperf)
+if test -z "$GPERF" ; then
+	AC_MSG_ERROR([*** gperf not found])
+fi
+
 # Checks for libraries.
 NIH_WITH_LOCAL_LIBNIH