commit e3512d887df41a8162c3e361171c04beca08415b
Author: Tom Stejskal <tom.stejskal@gmail.com>
Date:   Mon Nov 19 20:09:43 2018 +0100

    Fix Map.!: given key is not an element in the map

diff --git a/compiler/src/Elm/Compiler/Type/Extract.hs b/compiler/src/Elm/Compiler/Type/Extract.hs
index 1aafe1d4..99763392 100644
--- a/compiler/src/Elm/Compiler/Type/Extract.hs
+++ b/compiler/src/Elm/Compiler/Type/Extract.hs
@@ -10,6 +10,7 @@ module Elm.Compiler.Type.Extract
 
 
 import Data.Map ((!))
+import qualified Data.Map as Map
 import qualified Data.Maybe as Maybe
 import qualified Data.Set as Set
 
@@ -134,11 +135,15 @@ extractUnion interfaces (Opt.Global home name) =
     else
       let
         pname = toPublicName home name
-        unions = I._unions (interfaces ! home)
+        maybeUnions = I._unions <$> Map.lookup home interfaces
       in
-      case I.toUnionInternals (unions ! name) of
-        Can.Union vars ctors _ _ ->
-          T.Union pname vars <$> traverse extractCtor ctors
+      case Map.lookup name =<< maybeUnions of
+        Just union ->
+          case I.toUnionInternals union of
+            Can.Union vars ctors _ _ ->
+              T.Union pname vars <$> traverse extractCtor ctors
+        Nothing ->
+          return $ T.Union pname [] []
 
 
 extractCtor :: Can.Ctor -> Extractor (N.Name, [T.Type])
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<tr><td><span title='2017-11-18 16:07:57 +0100'>2017-11-18</span></td><td><a href='/guix/commit/gnu/packages/patches/audacity-build-with-system-portaudio.patch?id=3182a1d2f1f63bcc0840bf0c98e54a7037281163'>gnu: audacity: Update to 2.2.0.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/patches/audacity-build-with-system-portaudio.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/audio.scm (audacity): Update to 2.2.0.
[source]: Add patch to build with system portaudio; add snippet to remove most
bundled libraries.
[inputs]: Replace "gtk+-2" with "gtk+", replace "wxwidgets-gtk2" with
"wxwidgets"; remove "libsbsms"; add "suil" and "portmidi".
[arguments]: Adjust configure flags to avoid using bundled libraries; remove
phase "autoreconf"; add phases "fix-sbsms-check" and "use-upstream-headers".
</span></span></td><td>Ricardo Wurmus</td></tr>