stack: allow ghc-8.8 and Cabal-3.0 without warnings

haskell-platform.spec

@@ -48,6 +48,7 @@ Source20:       https://hackage.haskell.org/package/%{inferlicense}/%{inferlicen
 Source21:       https://hackage.haskell.org/package/%{rioorphans}/%{rioorphans}.tar.gz
 Source22:       https://hackage.haskell.org/package/%{thutilities}/%{thutilities}.tar.gz
 # End cabal-rpm sources
+Patch0:          stack-2.1-relax_version_warnings.patch
 
 BuildRequires:  ghc
 BuildRequires:  alex
@@ -234,6 +235,7 @@ Stack is a cross-platform program for developing Haskell projects.
 # Begin cabal-rpm setup:
 %setup -q -c -a1 -a2 -a3 -a4 -a5 -a6 -a7 -a8 -a9 -a10 -a11 -a12 -a20 -a21 -a22
 # End cabal-rpm setup
+%patch0 -b .orig
 (
 cd %{regexapplicativetext}
 cabal-tweak-dep-ver base '<4.10' '<4.13'

stack-2.1-relax_version_warnings.patch

@@ -0,0 +1,28 @@
+--- stack-2.1.3.1/src/Stack/Setup.hs~	2019-07-14 12:22:56.000000000 +0800
++++ stack-2.1.3.1/src/Stack/Setup.hs	2020-04-12 11:56:39.453839733 +0800
+@@ -482,9 +482,9 @@
+         logWarn "For more information, see: https://github.com/commercialhaskell/stack/issues/648"
+         logWarn ""
+         pure True
+-    | ghcVersion >= mkVersion [8, 7] -> do
++    | ghcVersion >= mkVersion [8, 9] -> do
+         logWarn $
+-          "Stack has not been tested with GHC versions above 8.6, and using " <>
++          "Stack has not been tested with GHC versions above 8.8, and using " <>
+           fromString (versionString ghcVersion) <>
+           ", this may fail"
+         pure True
+@@ -509,9 +509,9 @@
+         logWarn "This invocation will most likely fail."
+         logWarn "To fix this, either use an older version of Stack or a newer resolver"
+         logWarn "Acceptable resolvers: lts-3.0/nightly-2015-05-05 or later"
+-    | cabalVersion >= mkVersion [2, 5] ->
++    | cabalVersion >= mkVersion [3, 1] ->
+         logWarn $
+-          "Stack has not been tested with Cabal versions above 2.4, but version " <>
++          "Stack has not been tested with Cabal versions above 3.0, but version " <>
+           fromString (versionString cabalVersion) <>
+           " was found, this may fail"
+     | otherwise -> pure ()
+
+Diff finished.  Sun Apr 12 11:56:54 2020