From d50a6db016e7d4ccaa2f089d0928062b6eb16be1 Mon Sep 17 00:00:00 2001
From: Lorenz Leutgeb <lorenz@leutgeb.xyz>
Date: Sat, 15 Aug 2020 07:37:38 +0200
Subject: [PATCH] z3: Add Java Bindings (#92096)

Introduce new arguments to build Java Bindings, and to disable
building of Python bindings. Default behaviour is preserved.
---
 .../applications/science/logic/z3/default.nix | 33 ++++++++++++-------
 1 file changed, 21 insertions(+), 12 deletions(-)

diff --git a/pkgs/applications/science/logic/z3/default.nix b/pkgs/applications/science/logic/z3/default.nix
index 170a56b95b9..53dfb84760e 100644
--- a/pkgs/applications/science/logic/z3/default.nix
+++ b/pkgs/applications/science/logic/z3/default.nix
@@ -1,4 +1,12 @@
-{ stdenv, fetchFromGitHub, python, fixDarwinDylibNames }:
+{ stdenv, fetchFromGitHub, python, fixDarwinDylibNames
+, javaBindings ? false
+, pythonBindings ? true
+, jdk ? null
+}:
+
+assert javaBindings -> jdk != null;
+
+with stdenv.lib;
 
 stdenv.mkDerivation rec {
   pname = "z3";
@@ -11,22 +19,23 @@ stdenv.mkDerivation rec {
     sha256 = "0hprcdwhhyjigmhhk6514m71bnmvqci9r8gglrqilgx424r6ff7q";
   };
 
-  buildInputs = [ python fixDarwinDylibNames ];
+  buildInputs = [ python fixDarwinDylibNames ] ++ optional javaBindings jdk;
   propagatedBuildInputs = [ python.pkgs.setuptools ];
   enableParallelBuilding = true;
 
-  configurePhase = ''
-    ${python.interpreter} scripts/mk_make.py --prefix=$out --python --pypkgdir=$out/${python.sitePackages}
-    cd build
-  '';
+  configurePhase = concatStringsSep " " (
+    [ "${python.interpreter} scripts/mk_make.py --prefix=$out" ]
+    ++ optional javaBindings   "--java"
+    ++ optional pythonBindings "--python --pypkgdir=$out/${python.sitePackages}"
+  ) + "\n" + "cd build";
 
   postInstall = ''
-    mkdir -p $dev $lib $python/lib
-
-    mv $out/lib/python*  $python/lib/
-    mv $out/lib          $lib/lib
-    mv $out/include      $dev/include
-
+    mkdir -p $dev $lib
+    mv $out/lib     $lib/lib
+    mv $out/include $dev/include
+  '' + optionalString pythonBindings ''
+    mkdir -p $python/lib
+    mv $lib/lib/python* $python/lib/
     ln -sf $lib/lib/libz3${stdenv.hostPlatform.extensions.sharedLibrary} $python/${python.sitePackages}/z3/lib/libz3${stdenv.hostPlatform.extensions.sharedLibrary}
   '';