+### ILIAD #####################################################################
+AC_ARG_ENABLE([iliad],
+ [AS_HELP_STRING([--enable-iliad=@<:@yes/no@:>@],
+ [Compiles Chimara for the iLiad @<:@default=no@:>@])],
+ [],
+ [enable_iliad=no])
+AM_CONDITIONAL(TARGET_ILIAD, $TEST "x$enable_iliad" = xyes)
+
+### RPM CONFIGURATION ##########################################################
+# --enable-rpm requires rpm and rpmbuild
+AC_PATH_PROG([RPMBUILD], [rpmbuild], [notfound])
+AC_ARG_ENABLE([rpm],
+ [AS_HELP_STRING([--enable-rpm=@<:@yes/no@:>@],
+ [Configure for building RPM package @<:@default=no@:>@ (requires rpm and rpmbuild)])],
+ [AS_IF([$TEST "x$enable_rpm" = xyes],
+ [AS_IF([$TEST "x$RPMBUILD" = xnotfound],
+ [AC_MSG_ERROR([rpmbuild is required for --enable-rpm])])])],
+ [enable_rpm=no])
+AM_CONDITIONAL(BUILDING_RPM, $TEST "x$enable_rpm" = xyes)
+
+### SOUND LIBRARY TO USE ######################################################
+
+AC_ARG_WITH([gstreamer],
+ [AS_HELP_STRING([--without-gstreamer], [Disable GStreamer sound])],
+ [],
+ [with_gstreamer=yes])
+SOUND_MODULE=
+AS_IF([$TEST "x$with_gstreamer" != xno],
+ [AC_DEFINE([GSTREAMER_SOUND], [1], [Define to enable sound support with GStreamer])
+ SOUND_MODULE="gstreamer-0.10 >= 0.10.12"])
+
+### WHETHER TO GENERATE A .VAPI FILE ##########################################
+# Requires vapigen
+AC_PATH_PROG([VAPIGEN], [vapigen], [notfound])
+AM_CONDITIONAL(BUILDING_VAPI, $TEST "x$VAPIGEN" != xnotfound)