Add placeholder directory for text data files to come (need to have

this directory in a few uncommitted trees, so might as well commit
this empty directory now).

This commit was SVN r2391.

configure.ac

@@ -834,6 +834,8 @@ AC_CONFIG_FILES([
     include/Makefile
     include/mpif.h
 
+    etc/Makefile
+
     src/Makefile
     src/include/Makefile
     src/include/sys/Makefile

etc/Makefile.am

@@ -0,0 +1,7 @@
+#
+# $HEADER$
+#
+
+include $(top_srcdir)/config/Makefile.options
+
+# Placeholder for things to come...