doc: Construct info directory file.

* Makefile: Add target.
* doc/dir: New file.
* doc/fullswof-utils.texi: Add directory entry and category.

3 files changed, 29 insertions, 3 deletions

diff --git a/Makefile b/Makefile
index 64bbe94..73b952b 100644
--- a/Makefile
+++ b/Makefile
@@ -1,8 +1,12 @@
 HTML_DIR := manual
+INFO_DOC := doc/fullswof-utils.info doc/dir
 
-all: info-doc html-doc
+all: html-doc $(INFO_DOC)
 
-info-doc: doc/fullswof-utils.texi
+doc/dir: doc/fullswof-utils.info
+	@install-info --info-dir=doc $<
+
+doc/fullswof-utils.info: doc/fullswof-utils.texi
 	@makeinfo --output=doc/fullswof-utils.info --no-split $<
 
 html-doc: doc/fullswof-utils.texi
diff --git a/doc/dir b/doc/dir
new file mode 100644
index 0000000..d07f6eb
--- /dev/null
+++ b/doc/dir
@@ -0,0 +1,19 @@
+This is the file .../info/dir, which contains the
+topmost node of the Info hierarchy, called (dir)Top.
+The first time you invoke Info, you start off looking at this node.
+
+File: dir,	Node: Top	This is the top of the INFO tree
+
+  This (the Directory node) gives a menu of major topics.
+  Typing "q" exits, "H" lists all Info commands, "d" returns here,
+  "h" gives a primer for first-timers,
+  "mEmacs<Return>" visits the Emacs manual, etc.
+
+  In Emacs, you can click mouse button 2 on a menu item or cross reference
+  to select it.
+
+* Menu:
+
+Science
+* FullSWOF-utils: (FullSWOF-utils).
+                                Utility programs for the FullSWOF solver.
diff --git a/doc/fullswof-utils.texi b/doc/fullswof-utils.texi
index 4e51a5e..bacfe36 100644
--- a/doc/fullswof-utils.texi
+++ b/doc/fullswof-utils.texi
@@ -21,7 +21,10 @@ Texts.  A copy of the license is included in the section entitled
 @end quotation
 @end copying
 
-
+@dircategory Science
+@direntry
+* FullSWOF-utils: (FullSWOF-utils). Utility programs for the FullSWOF solver.
+@end direntry
 
 @titlepage
 @title FullSWOF-utils Reference Manual