--- stack-2.9.3.1/src/Stack/Setup.hs~	2023-12-15 20:23:43.622387891 +0800
+++ stack-2.9.3.1/src/Stack/Setup.hs	2023-12-15 22:57:36.515310538 +0800
@@ -1566,6 +1566,8 @@
         Platform Sparc                 Cabal.Linux   -> pure "linux-sparc"
         Platform AArch64               Cabal.OSX     -> pure "macosx-aarch64"
         Platform AArch64               Cabal.FreeBSD -> pure "freebsd-aarch64"
+        Platform PPC64                 Cabal.Linux   -> pure "linux-ppc64"
+        Platform S390X                 Cabal.Linux   -> pure "linux-s390x"
         Platform arch os -> throwM $ UnsupportedSetupCombo os arch
 
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