From c04219a9d5af1fbe7254352e6d61a38552161015 Mon Sep 17 00:00:00 2001
From: Ryan Burns <rtburns@protonmail.com>
Date: Sun, 18 Oct 2020 13:05:33 -0700
Subject: [PATCH] spooles: fix build on darwin

---
 pkgs/development/libraries/science/math/spooles/default.nix   | 4 ++++
 pkgs/development/libraries/science/math/spooles/spooles.patch | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/libraries/science/math/spooles/default.nix b/pkgs/development/libraries/science/math/spooles/default.nix
index 953f5a70b8aa..c55a1b8002e1 100644
--- a/pkgs/development/libraries/science/math/spooles/default.nix
+++ b/pkgs/development/libraries/science/math/spooles/default.nix
@@ -15,6 +15,10 @@ stdenv.mkDerivation rec {
     ./spooles.patch
   ];
 
+  postPatch = stdenv.lib.optionalString stdenv.hostPlatform.isDarwin ''
+    substituteInPlace makefile --replace '-Wl,-soname' '-Wl,-install_name'
+  '';
+
   buildPhase = ''
     make lib
   '';
diff --git a/pkgs/development/libraries/science/math/spooles/spooles.patch b/pkgs/development/libraries/science/math/spooles/spooles.patch
index c0c93c9365c9..71fb4a7f44e1 100644
--- a/pkgs/development/libraries/science/math/spooles/spooles.patch
+++ b/pkgs/development/libraries/science/math/spooles/spooles.patch
@@ -166,7 +166,7 @@ index f014c7d..7c8042a 100755
  #cd MPI              ; make lib
 -#cd MT               ; make lib
 +	cd MT               ; make lib
-+	gcc -shared */*/*.lo -Wl,-soname,libspooles.so.2.2 -o libspooles.so.2.2 -lpthread -lm
++	$(CC) -shared */*/*.lo -Wl,-soname,libspooles.so.2.2 -o libspooles.so.2.2 -lpthread -lm
 +	ln -s libspooles.so.2.2 libspooles.so
  
  global :