ghc-pkg: Configure handle encodings

This fixes #15021 using a the same approach as was used to fix the issue
in ghc (#10762).

Test Plan: Validate on Windows as user whose username contains
non-ASCII characters

Reviewers: simonmar

Reviewed By: simonmar

Subscribers: lehins, thomie, carter

GHC Trac Issues: #15021

Differential Revision: https://phabricator.haskell.org/D4642

1 files changed, 2 insertions, 12 deletions

diff --git a/ghc/Main.hs b/ghc/Main.hs
index b720dea3db..276546bc95 100644
--- a/ghc/Main.hs
+++ b/ghc/Main.hs
@@ -40,6 +40,7 @@ import Module           ( ModuleName )
 
 
 -- Various other random stuff that we need
+import GHC.HandleEncoding
 import Config
 import Constants
 import HscTypes
@@ -92,18 +93,7 @@ main = do
    hSetBuffering stdout LineBuffering
    hSetBuffering stderr LineBuffering
 
-   -- Handle GHC-specific character encoding flags, allowing us to control how
-   -- GHC produces output regardless of OS.
-   env <- getEnvironment
-   case lookup "GHC_CHARENC" env of
-    Just "UTF-8" -> do
-     hSetEncoding stdout utf8
-     hSetEncoding stderr utf8
-    _ -> do
-     -- Avoid GHC erroring out when trying to display unhandled characters
-     hSetTranslit stdout
-     hSetTranslit stderr
-
+   configureHandleEncoding
    GHC.defaultErrorHandler defaultFatalMessager defaultFlushOut $ do
     -- 1. extract the -B flag from the args
     argv0 <- getArgs