From 4b0e6a935aabe2c12600d9d63dd5234681481459 Mon Sep 17 00:00:00 2001
From: Dominic Steinitz <dominic@steinitz.org>
Date: Wed, 4 Apr 2018 10:28:43 +0100
Subject: Working for CI but not locally

---
 shell.nix | 159 ++++++++++++++++++++++++++++++++++++++++----------------------
 1 file changed, 104 insertions(+), 55 deletions(-)

(limited to 'shell.nix')

diff --git a/shell.nix b/shell.nix
index 91ad0fe..3980419 100644
--- a/shell.nix
+++ b/shell.nix
@@ -22,61 +22,110 @@
 # } // libHack)
 
 
-{ nixpkgs ? import <nixpkgs>
-  {}
-, compiler ? "ghc822"
-, doBenchmark ? false }:
+# Dominic's original version
+
+# { nixpkgs ? import <nixpkgs>
+#   {}
+# , compiler ? "ghc822"
+# , doBenchmark ? false }:
+
+# let
+
+#   inherit (nixpkgs) pkgs;
+
+# f = { mkDerivation, ad, base, diagrams-lib, diagrams-rasterific, gcc
+#     , hmatrix, hmatrix-gsl, HUnit, inline-c, plots, pretty, QuickCheck, stdenv, sundials, vector }:
+
+# mkDerivation {
+#   pname = "haskell-sundials";
+#   version = "0.1.0.0";
+#   src = ./.;
+#   isLibrary = false;
+#   isExecutable = true;
+#   executableHaskellDepends = [
+#     ad
+#     base
+#     diagrams-lib
+#     diagrams-rasterific
+#     gcc
+#     hmatrix
+#     hmatrix-gsl
+#     HUnit
+#     inline-c
+#     plots
+#     QuickCheck
+#     pretty
+#     vector
+#   ] ++ (if pkgs.stdenv.isDarwin then [pkgs.darwin.apple_sdk.frameworks.Cocoa] else []);
+#   executableSystemDepends = [
+#     pkgs.blas
+#     pkgs.gfortran.cc
+#     pkgs.liblapack
+#     pkgs.gsl
+#     pkgs.glpk
+#     pkgs.pkgconfig
+#     pkgs.stack
+#     sundials
+#     pkgs.zlib
+#   ] ++ (if pkgs.stdenv.isDarwin then [pkgs.darwin.apple_sdk.frameworks.Accelerate] else []);
+#   license = stdenv.lib.licenses.bsd3;
+# };
+
+# haskellPackages = if compiler == "default"
+#   then pkgs.haskellPackages
+#   else pkgs.haskell.packages.${compiler};
+
+# variant = if doBenchmark then pkgs.haskell.lib.doBenchmark else pkgs.lib.id;
+
+# drv = variant (haskellPackages.callPackage f {});
+
+# in
+
+#   if pkgs.lib.inNixShell then drv.env else drv
 
 let
+  pkgs = import ./nixpkgs.nix {};
+
+  # List of dependencies, these are provided as
+  #  - extra-lib-dirs to stack for linking
+  #  - buildInputs so that the headers are available during compilation
+  extraLibs =
+    [
+      pkgs.blas
+      pkgs.gfortran7.cc
+      pkgs.glpk
+      pkgs.gsl
+      pkgs.liblapack
+      pkgs.sundials
+      pkgs.zlib # the library
+      pkgs.zlib.dev # the headers
+    ];
+
+  # Wrapped stack executable that uses the nix-provided GHC
+  stack = pkgs.stdenv.mkDerivation {
+      name = "stack-system-ghc";
+      builder = pkgs.writeScript "stack" ''
+        source $stdenv/setup
+        mkdir -p $out/bin
+        makeWrapper ${pkgs.stack}/bin/stack $out/bin/stack \
+          --add-flags "--extra-lib-dirs=${pkgs.lib.makeLibraryPath extraLibs}"
+      '';
+      buildInputs = [ pkgs.makeWrapper ];
+    };
+  ghc = pkgs.haskell.compiler.ghc822;
+  ldLibraryPath = if pkgs.stdenv.isDarwin then "DYLD_LIBRARY_PATH" else "LD_LIBRARY_PATH";
+
+in pkgs.mkShell
+  { buildInputs = [ stack ghc ] ++ extraLibs;
+
+    # Cabal only accepts gsl through pkg-config
+    PKG_CONFIG_PATH="${pkgs.gsl}/lib/pkgconfig";
+
+    # For reasons that are beyond me stack fails to pass in zlib as an extra
+    # lib
+    ${ldLibraryPath} = "${pkgs.zlib}/lib";
 
-  inherit (nixpkgs) pkgs;
-
-f = { mkDerivation, ad, base, diagrams-lib, diagrams-rasterific, gcc
-    , hmatrix, hmatrix-gsl, HUnit, inline-c, plots, pretty, QuickCheck, stdenv, sundials, vector }:
-
-mkDerivation {
-  pname = "haskell-sundials";
-  version = "0.1.0.0";
-  src = ./.;
-  isLibrary = false;
-  isExecutable = true;
-  executableHaskellDepends = [
-    ad
-    base
-    diagrams-lib
-    diagrams-rasterific
-    gcc
-    hmatrix
-    hmatrix-gsl
-    HUnit
-    inline-c
-    plots
-    QuickCheck
-    pretty
-    vector
-  ] ++ (if pkgs.stdenv.isDarwin then [pkgs.darwin.apple_sdk.frameworks.Cocoa] else []);
-  executableSystemDepends = [
-    pkgs.blas
-    pkgs.gfortran.cc
-    pkgs.liblapack
-    pkgs.gsl
-    pkgs.glpk
-    pkgs.pkgconfig
-    pkgs.stack
-    sundials
-    pkgs.zlib
-  ] ++ (if pkgs.stdenv.isDarwin then [pkgs.darwin.apple_sdk.frameworks.Accelerate] else []);
-  license = stdenv.lib.licenses.bsd3;
-};
-
-haskellPackages = if compiler == "default"
-  then pkgs.haskellPackages
-  else pkgs.haskell.packages.${compiler};
-
-variant = if doBenchmark then pkgs.haskell.lib.doBenchmark else pkgs.lib.id;
-
-drv = variant (haskellPackages.callPackage f {});
-
-in
-
-  if pkgs.lib.inNixShell then drv.env else drv
+    # For some reasons that are beyond me stack fails to pass in liblapack as a
+    # static lib to the linker
+    LIBRARY_PATH="${pkgs.liblapack}/lib";
+  }
-- 
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