+# include $(top_srcdir)/Makefile.defines.in
+#
+# All packages in the SILC source tree that include the Makefile.defines.in
+# must also include the following two lines in their configure.in file.
+#
+# INCLUDE_DEFINES_INT="include \$(top_srcdir)/Makefile.defines_int"
+# AC_SUBST(INCLUDE_DEFINES_INT)
+#
+# (See the Makefile.defines_int.pre for all different definitions but DO NOT
+# directly include that file!)