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+Information for HDF5 maintainers:
+
+* You can run make from any directory.  However, running in a
+  subdirectory only knows how to build things in that directory and
+  below.  However, all makefiles know when their target depends on
+  something outside the local directory tree:
+
+	$ cd test
+	$ make
+	make: *** No rule to make target ../src/libhdf5.a
+
+* All Makefiles understand the following targets:
+
+        all              -- build locally.
+        install          -- install libs, headers, progs.
+        uninstall        -- removed installed files.
+        mostlyclean      -- remove temp files (eg, *.o but not *.a).
+        clean            -- mostlyclean plus libs and progs.
+        distclean        -- all non-distributed files.
+        maintainer-clean -- all but H5config.h.in and configure.
+
+* Most Makefiles also understand:
+
+	TAGS		-- build a tags table
+	dep depend	-- recalculate source dependencies
+	lib		-- build just the libraries w/o programs
+
+* If you have personal preferences for which make, compiler, compiler
+  flags, preprocessor flags, etc., that you use and you don't want to
+  set environment variables, then use a site configuration file.
+
+  When configure starts, it looks in the config directory for files
+  whose name is some combination of the CPU name, vendor, and
+  operating system in this order:
+
+	CPU-VENDOR-OS
+	VENDOR-OS
+	OS
+
+  The first file which is found is sourced and can therefore affect
+  the behavior of the rest of configure.  For example, the linux
+  configuration file might contain:
+
+	# Site configuration -- do not distribute this file.
+	if test "X$CFLAGS" = "X"; then
+	   CFLAGS="-g -Wall"
+        fi
+
+  Site configuration files are for personal preferences and should
+  not be distributed.
+
+
+* If you use GNU make along with gcc the Makefile will contain targets
+  that automatically maintain a list of source interdependencies; you
+  seldom have to say `make clean'.  I say `seldom' because if you
+  change how one `*.h' file includes other `*.h' files you'll have
+  to force an update.
+
+  To force an update of all dependency information remove the
+  `.depend' file from each directory and type `make depend'.  For
+  instance:
+
+	$ find . -name .depend -exec rm {} \;
+	$ make depend
+
+* Object files stay in the directory and are added to the library as a
+  final step instead of placing the file in the library immediately
+  and removing it from the directory.  The reason is two-fold:
+
+	1.  Most versions of make don't allow `$(LIB)($(SRC:.c=.o))'
+	    which makes it necessary to have two lists of files, one
+	    that ends with `.c' and the other that has the library
+	    name wrapped around each `.o' file.
+
+	2.  Some versions of make/ar have problems with modifications
+	    times of archive members.