support setting empty values (sanely) & removing support for

[apt.git] / doc / acquire-additional-files.txt

diff --git a/doc/acquire-additional-files.txt b/doc/acquire-additional-files.txt
index 37773c321d7882e4c50f9aa741b28b58ee40fc55..a7acbbe465a6ef766612ab956d87e3f24fb52500 100644 (file)
--- a/doc/acquire-additional-files.txt
+++ b/doc/acquire-additional-files.txt
@@ -114,6 +114,9 @@ aren't accidentally used by frontends:
   Defaults to the value of Acquire::PDiffs which is true by default.
   Can be overridden per-source by the sources.list option of the same
   name. See the documentation for both of these for details.
+* By-Hash: controls if apt will try to use an URI constructed from
+  a hashsum of the file to download. See the documentation for config
+  option Acquire::By-Hash and sources.list option By-Hash for details.
 * CompressionTypes: The default value is a space separated list of
   compression types supported by apt (see Acquire::CompressionTypes).
   You can set this option to prevent apt from downloading a compression
@@ -168,6 +171,9 @@ printed as-is.
   APT::Architectures (potentially modified by sources.list options),
   e.g. "amd64", "i386" or "armel" for the 'deb' type. In type 'deb-src'
   this variable has the value "source".
+* $(NATIVE_ARCHITECTURE): The architecture apt treats as the native
+  architecture for this system configured as APT::Architecture
+  defaulting to the architecture apt itself was built for.
 
 Note that while more variables might exist in the implementation, these
 are to be considered undefined and their usage strongly discouraged. If