From 7565687fcb1be7c671e39e5c58c99840ddace57e Mon Sep 17 00:00:00 2001
From: Simon Michael <simon@joyful.com>
Date: Wed, 4 Apr 2018 17:47:36 +0100
Subject: [PATCH] tools: always generate cabal files with hpack 0.20 to avoid
 warnings

Not great, requires makefile users to have a "hpack-0.20" in $PATH.
---
 Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index 74eb7fd60..57b603eff 100644
--- a/Makefile
+++ b/Makefile
@@ -86,7 +86,7 @@ GHCI=ghci #-package ghc-datasize #-package ghc-heap-view
 # HADDOCK=haddock
 # CABAL=cabal
 # CABALINSTALL=cabal install -w $(GHC)
-STACK=stack
+STACK=stack --with-hpack=hpack-0.20
 #STACK=stack --stack-yaml=stack-ghc7.yaml
 
 # -j16 sometimes gives "commitAndReleaseBuffer: resource vanished (Broken pipe)" but seems harmless
@@ -1429,7 +1429,7 @@ setversion: $(VERSIONSENSITIVEFILES) #$(call def-help,setversion, update version
 #	hpack --silent $(dir $*) 
 #
 gencabal: $(call def-help,gencabal, regenerate cabal files from package.yaml files with stack )
-	stack build --dry-run --silent
+	$(STACK) build --dry-run --silent
 
 # updatecabal: gencabal $(call def-help,updatecabal, regenerate cabal files and commit )
 # 	@read -p "please review changes then press enter to commit $(shell ls */*.cabal)"