lief: Fix failing build

pkgs/by-name/li/lief/package.nix

@@ -47,7 +47,11 @@ stdenv.mkDerivation (finalAttrs: {
     scikit-build-core
   ];
 
-  cmakeFlags = [ (lib.cmakeBool "BUILD_SHARED_LIBS" (!stdenv.hostPlatform.isStatic)) ];
+  cmakeFlags = [
+    (lib.cmakeBool "LIEF_PYTHON_API" true)
+    (lib.cmakeBool "LIEF_EXAMPLES" false)
+    (lib.cmakeBool "BUILD_SHARED_LIBS" (!stdenv.hostPlatform.isStatic))
+  ];
 
   postBuild = ''
     pushd ../api/python
@@ -61,6 +65,8 @@ stdenv.mkDerivation (finalAttrs: {
     popd
   '';
 
+  pythonImportsCheck = [ "lief" ];
+
   meta = with lib; {
     description = "Library to Instrument Executable Formats";
     homepage = "https://lief.quarkslab.com/";