INSTALL: add some notes for about dependencies

diff --git a/INSTALL b/INSTALL
index 489087a..7c9ccc1 100644 (file)
--- a/INSTALL
+++ b/INSTALL
@@ -2,11 +2,17 @@ The recommended way to install tweeper globally is to install all its files
 under /usr/share/php/tweeper and then make a symlink to the wrapper script
 "tweeper" under /usr/bin
 
 under /usr/share/php/tweeper and then make a symlink to the wrapper script
 "tweeper" under /usr/bin
 

+NOTES FOR PACKAGERS
+
+Even though the php json extensions are used, namely json_decode(), a direct
+dependency on php-json is not usually strictly necessary, because (at least on
+Debian) php-cli already depends on it.
+

 Tweeper depends on php-symfony-serializer which is used to convert json to xml
 for some sites which provide the timeline data in json rather than in directly
 transformable html.
 
 Tweeper depends on php-symfony-serializer which is used to convert json to xml
 for some sites which provide the timeline data in json rather than in directly
 transformable html.
 

-NOTE: Tweeper also depends indirectly on php-symfony-property-access because
-the code relies on the ObjectNormalizer class which requires the
-PropertyAccess component, see
+Tweeper also depends (indirectly) on php-symfony-property-access because the
+code relies on the ObjectNormalizer class which requires the PropertyAccess
+component, see

 http://symfony.com/doc/current/components/serializer.html#installation
 http://symfony.com/doc/current/components/serializer.html#installation