[commit: ghc] master: Add index entry for signature files / Backpack. (a4ccd33)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/ghc

On branch  : master
Link       : http://ghc.haskell.org/trac/ghc/changeset/a4ccd330273ccfd136481ee82ae9495f5dd5f146/ghc

>---------------------------------------------------------------

commit a4ccd330273ccfd136481ee82ae9495f5dd5f146
Author: Edward Z. Yang <ezyang at cs.stanford.edu>
Date:   Fri Feb 10 00:48:42 2017 -0800

    Add index entry for signature files / Backpack.
    
    Signed-off-by: Edward Z. Yang <ezyang at cs.stanford.edu>


>---------------------------------------------------------------

a4ccd330273ccfd136481ee82ae9495f5dd5f146
 docs/users_guide/separate_compilation.rst | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/docs/users_guide/separate_compilation.rst b/docs/users_guide/separate_compilation.rst
index 9693cea..f6c710f 100644
--- a/docs/users_guide/separate_compilation.rst
+++ b/docs/users_guide/separate_compilation.rst
@@ -662,6 +662,9 @@ A hs-boot file is written in a subset of Haskell:
 Module signatures
 -----------------
 
+.. index::
+     single: signature files; Backpack; hsig files
+
 GHC 8.2 supports module signatures (``hsig`` files), which allow you to
 write a signature in place of a module implementation, deferring the
 choice of implementation until a later point in time.  This feature is