remove incorrect path join against buildroot

src/python/pants/backend/native/tasks/link_shared_libraries.py

@@ -12,7 +12,6 @@
 from pants.backend.native.tasks.native_compile import NativeTargetDependencies, ObjectFiles
 from pants.backend.native.tasks.native_external_library_fetch import NativeExternalLibraryFetch
 from pants.backend.native.tasks.native_task import NativeTask
-from pants.base.build_environment import get_buildroot
 from pants.base.exceptions import TaskError
 from pants.base.workunit import WorkUnit, WorkUnitLabel
 from pants.util.collections import assert_single_element
@@ -181,12 +180,11 @@ def _execute_link_request(self, link_request):
     resulting_shared_lib_path = os.path.join(output_dir, native_artifact.as_shared_lib(platform))
     self.context.log.debug("resulting_shared_lib_path: {}".format(resulting_shared_lib_path))
     # We are executing in the results_dir, so get absolute paths for everything.
-    buildroot = get_buildroot()
     cmd = ([linker.exe_filename] +
            self._get_shared_lib_cmdline_args(platform) +
            self._get_third_party_lib_args(link_request) +
-           ['-o', os.path.join(buildroot, resulting_shared_lib_path)] +
-           [os.path.join(buildroot, obj) for obj in object_files])
+           ['-o', os.path.abspath(resulting_shared_lib_path)] +
+           [os.path.abspath(obj) for obj in object_files])
 
     with self.context.new_workunit(name='link-shared-libraries',
                                    labels=[WorkUnitLabel.LINKER]) as workunit: