Only add OPTION_JOBS to the command line if it's set

1 files changed, 4 insertions, 1 deletions

diff --git a/setup.py b/setup.py
index 0ff5dfbb3..ac11e6a77 100644
--- a/setup.py
+++ b/setup.py
@@ -578,7 +578,10 @@ class pyside_build(_build):
             raise DistutilsSetupError("Error configuring " + extension)
         
         log.info("Compiling module %s..." % extension)
-        if run_process([self.make_path, OPTION_JOBS], log) != 0:
+        cmd_make = [self.make_path]
+        if OPTION_JOBS:
+            cmd_make.append(OPTION_JOBS)
+        if run_process(cmd_make, log) != 0:
             raise DistutilsSetupError("Error compiling " + extension)
         
         if extension.lower() == "shiboken":