-PKG_CHECK_MODULES([GLIB], [glib-2.0])
-AC_SUBST(GLIB_CFLAGS)
-AC_SUBST(GLIB_LIBS)
-
-PKG_CHECK_MODULES([GMODULE], [gmodule-2.0])
-AC_SUBST(GMODULE_CFLAGS)
-AC_SUBST(GMODULE_LIBS)
-
-AC_PATH_PROG([FLEX], [flex])
-test "$FLEX" || AC_MSG_ERROR([flex not found])
+if test "$CVS" = "yes"; then
+ AC_PATH_PROG([FLEX], [flex])
+ test "$FLEX" || AC_MSG_ERROR([flex not found])