README: improve

diff --git a/README b/README
index a1e3873..c92cb52 100644 (file)
--- a/README
+++ b/README
@@ -1,22 +1,40 @@
+pd-aubio
+========
+
 pd-aubio contains various externals for PureData using the aubio library.
 
 For more information, see:
-  - aubio homepage: http://aubio.org
-  - puredata homepage: http://puredata.info
+
+  * [aubio homepage](http://aubio.org)
+  * [puredata homepage](http://puredata.info)
 
 Building
 --------
 
 pd-aubio uses waf. To configure and build it, run:
 
-  $ ./waf configure build
+        $ ./waf configure build
+
+If you have built and installed aubio with an unusual `--prefix` location, you
+will need to set `PKG_CONFIG_PATH` accordingly.
+
+For instance, to build against aubio installed in `/var/tmp/opt-aubio`:
 
-If you have aubio installed in an unusual location, just set your
-PKG_CONFIG_PATH accordingly. For instance, to build against aubio installed in
-/var/tmp/aubio:
+        $ PKG_CONFIG_PATH=/var/tmp/opt-aubio/lib/pkgconfig \
+            ./waf distclean configure build install \
+            --prefix=/var/tmp/opt-aubio
 
-  $ PKG_CONFIG_PATH=/var/tmp/aubio/lib/pkgconfig waf \
-      distclean configure build install --prefix=/var/tmp/aubio 
+If you have installed aubio with the `--destdir` option, you will also need to
+set `CFLAGS` and `LDFLAGS`.
+
+For instance, you could use the following to use aubio installed in
+`/var/tmp/dist-aubio`:
+
+        $ PKG_CONFIG_PATH=/var/tmp/dist-aubio/usr/local/lib/pkgconfig \
+            CFLAGS=-I/var/tmp/dist-aubio/usr/local/include \
+            LDFLAGS=-L/var/tmp/dist-aubio/usr/local/lib \
+            ./waf distclean configure build install \
+            --destdir=/var/tmp/dist-aubio
 
 Installing
 ----------
@@ -24,17 +42,22 @@ Installing
 To install the aubio external for puredata on your system, run the following as
 root:
 
-  # make install
+        # ./waf install
 
 Running
 -------
 
 To load the external, start pd as follows
 
-  $ pd -lib aubio
+        $ pd -lib aubio
+
+If the external file (`aubio.pd_linux`, `aubio.pd_darwin`, or `aubio.dll`) is
+installed in a strange location, add the path to this file to with `-path`.
+
+        $ pd -path /var/tmp/dist-aubio/usr/lib/pd/extra/aubio -lib aubio
 
-Alternatively, you can create an object [aubio] to initialize the external.
+Alternatively, you can create an object `[aubio]` to initialize the external.
+If the external is found in your path, it will be automatically loaded.
 
-If you want to use the external without installing it, the above command should
-work as expected from the pd-aubio source directory. If needed, set your
-LD_LIBRARY_PATH to include the path to the aubio library.
+If you want to use the external without installing it, you will need to set
+your `LD_LIBRARY_PATH` to include the path to the aubio library.