From e05c8dd3e6adb6a3a64eea344bbe66f0173d6b37 Mon Sep 17 00:00:00 2001
From: Rui Chen <rui@meetup.com>
Date: Sat, 8 Aug 2020 18:01:35 -0400
Subject: [PATCH 1/3] texmath: deprecate cabal v1 installation

---
 Formula/texmath.rb | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/Formula/texmath.rb b/Formula/texmath.rb
index 1f4b4c0653a7..79f356365ba3 100644
--- a/Formula/texmath.rb
+++ b/Formula/texmath.rb
@@ -1,13 +1,10 @@
-require "language/haskell"
-
 class Texmath < Formula
-  include Language::Haskell::Cabal
-
   desc "Haskell library for converting LaTeX math to MathML"
   homepage "https://johnmacfarlane.net/texmath.html"
   url "https://hackage.haskell.org/package/texmath-0.12.0.2/texmath-0.12.0.2.tar.gz"
   sha256 "2fec285a2266e56bba17914c122045f31b38de3efcd202dcf32a4f8b830bd184"
   license "GPL-2.0"
+  revision 1
 
   bottle do
     cellar :any_skip_relocation
@@ -20,9 +17,8 @@ class Texmath < Formula
   depends_on "ghc" => :build
 
   def install
-    install_cabal_package "--enable-tests", flags: ["executable"] do
-      system "cabal", "test"
-    end
+    system "cabal", "v2-update"
+    system "cabal", "v2-install", *std_cabal_v2_args
   end
 
   test do

From ace81c8df8dd2cbc11428585695e035daaf2fb62 Mon Sep 17 00:00:00 2001
From: Rui Chen <rui@meetup.com>
Date: Sun, 16 Aug 2020 20:36:09 -0400
Subject: [PATCH 2/3] use stack to build formula

---
 Formula/texmath.rb | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/Formula/texmath.rb b/Formula/texmath.rb
index 79f356365ba3..06fc3b8edb70 100644
--- a/Formula/texmath.rb
+++ b/Formula/texmath.rb
@@ -13,12 +13,15 @@ class Texmath < Formula
     sha256 "c73f655501e17551219bf6bd028aedaa09b40464b3706db4d1a0d12b673c824e" => :high_sierra
   end
 
-  depends_on "cabal-install" => :build
-  depends_on "ghc" => :build
+  depends_on "haskell-stack" => :build
 
   def install
-    system "cabal", "v2-update"
-    system "cabal", "v2-install", *std_cabal_v2_args
+    # Let `stack` handle its own parallelization
+    jobs = ENV.make_jobs
+    ENV.deparallelize
+
+    system "stack", "-j#{jobs}", "build"
+    system "stack", "-j#{jobs}", "--local-bin-path=#{bin}", "install"
   end
 
   test do

From 779a3ada2a5e3c7037ca0e56c982fe9a9b9459e0 Mon Sep 17 00:00:00 2001
From: Rui Chen <rui@meetup.com>
Date: Sun, 16 Aug 2020 21:17:54 -0400
Subject: [PATCH 3/3] add stack init step

---
 Formula/texmath.rb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Formula/texmath.rb b/Formula/texmath.rb
index 06fc3b8edb70..dca84cb9e921 100644
--- a/Formula/texmath.rb
+++ b/Formula/texmath.rb
@@ -20,6 +20,7 @@ def install
     jobs = ENV.make_jobs
     ENV.deparallelize
 
+    system "stack", "init"
     system "stack", "-j#{jobs}", "build"
     system "stack", "-j#{jobs}", "--local-bin-path=#{bin}", "install"
   end