From 3f53ee2e42c180a34fb7dd506d33da56aa8221d1 Mon Sep 17 00:00:00 2001
From: Angus Lepper <angus.lepper@gmail.com>
Date: Sun, 24 May 2015 22:03:47 +0100
Subject: [PATCH] Document 'extensions' field replacements
Resolves #2401.
---
Cabal/doc/developing-packages.markdown | 21 +++++++++++----------
1 file changed, 11 insertions(+), 10 deletions(-)
diff --git a/Cabal/doc/developing-packages.markdown b/Cabal/doc/developing-packages.markdown
index 82a0ac6bb6..b91352ccb5 100644
--- a/Cabal/doc/developing-packages.markdown
+++ b/Cabal/doc/developing-packages.markdown
@@ -1334,21 +1334,22 @@ values for these fields.
For backwards compatibility, the old variant `hs-source-dir` is also
recognized.
-`extensions:` _identifier list_
-: A list of Haskell extensions used by every module. Extension names
- are the constructors of the [Extension][extension] type. These
- determine corresponding compiler options. In particular, `CPP` specifies that
- Haskell source files are to be preprocessed with a C preprocessor.
-
- Extensions used only by one module may be specified by placing a
- `LANGUAGE` pragma in the source file affected, e.g.:
+`default-extensions:` _identifier list_
+: A list of Haskell extensions used by every module. These determine
+ corresponding compiler options enabled for all files. Extension names are
+ the constructors of the [Extension][extension] type. For example, `CPP`
+ specifies that Haskell source files are to be preprocessed with a C
+ preprocessor.
+
+`other-extensions:` _identifier list_
+: A list of Haskell extensions used by some (but not necessarily all) modules.
+ From GHC version 6.6 onward, these may be specified by placing a `LANGUAGE`
+ pragma in the source files affected e.g.
~~~~~~~~~~~~~~~~
{-# LANGUAGE CPP, MultiParamTypeClasses #-}
~~~~~~~~~~~~~~~~
- Note: GHC versions prior to 6.6 do not support the `LANGUAGE` pragma.
-
`build-tools:` _program list_
: A list of programs, possibly annotated with versions, needed to
build this package, e.g. `c2hs >= 0.15, cpphs`.If no version
--
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