Ignore internal-libraries test on macOS/Aarch64

Author: mpilgrem

test/integration/lib/StackTest.hs

@@ -1,3 +1,5 @@
+{-# LANGUAGE ScopedTypeVariables #-}
+
 module StackTest
   ( run'
   , run
@@ -37,6 +39,7 @@ module StackTest
   , isLinux
   , getIsAlpine
   , isARM
+  , isAarch64
   , isMacOSX
   , defaultResolverArg
   , removeFileIgnore
@@ -334,6 +337,10 @@ getIsAlpine = doesFileExist "/etc/alpine-release"
 isARM :: Bool
 isARM = arch == "arm"
 
+-- | Is the architecture Aarch64?
+isAarch64 :: Bool
+isAarch64 = arch == "aarch64"
+
 -- | Is the OS Mac OS X?
 isMacOSX :: Bool
 isMacOSX = os == "darwin"

test/integration/tests/internal-libraries/Main.hs

@@ -1,7 +1,13 @@
+import Control.Monad ( unless )
 import StackTest
 
 main :: IO ()
-main = do
+-- See https://github.com/haskell/cabal/issues/7763. On macOS (Apple silicon),
+-- fails with Cabal error:
+-- "Cabal-simple_SvXsv1f__3.2.1.0_ghc-8.10.7: Cannot build some foreign libraries:
+-- Building foreign libraries is currently only supported on OSX, Linux and
+-- Windows"
+main = unless ( isAarch64 && isMacOSX ) $ do
   -- The '--install-ghc' flag is passed here, because etc/scripts/release.hs
   -- passes `--no-install-ghc` when `--alpine` is passed to its 'check'
   -- command.