Add a warning for tabs in source files

[ghc-hetmet.git] / compiler / main / DynFlags.hs

diff --git a/compiler/main/DynFlags.hs b/compiler/main/DynFlags.hs
index d05b8b2..3e9ca8f 100644 (file)
--- a/compiler/main/DynFlags.hs
+++ b/compiler/main/DynFlags.hs
@@ -156,6 +156,7 @@ data DynFlag
    | Opt_WarnDeprecations
    | Opt_WarnDodgyImports
    | Opt_WarnOrphans
+   | Opt_WarnTabs
 
    -- language opts
    | Opt_AllowOverlappingInstances
@@ -1032,6 +1033,7 @@ fFlags = [
   ( "warn-unused-matches",             Opt_WarnUnusedMatches ),
   ( "warn-deprecations",               Opt_WarnDeprecations ),
   ( "warn-orphans",                    Opt_WarnOrphans ),
+  ( "warn-tabs",                       Opt_WarnTabs ),
   ( "fi",                              Opt_FFI ),  -- support `-ffi'...
   ( "ffi",                             Opt_FFI ),  -- ...and also `-fffi'
   ( "arrows",                          Opt_Arrows ), -- arrow syntax