Mitigate macOS race condition in installer build (GH-6686) (GH-6687)

(cherry picked from commit fc6aa28bfd0502d994cec30bd3679b7def3be2af)

Co-authored-by: Ned Deily <nad@python.org>

diff --git a/Mac/BuildScript/build-installer.py b/Mac/BuildScript/build-installer.py
index 68868d97a65c43ec0f4f2c35722d0c47493c58ad..d2b04d163ab4dcadf0c66e74a36249093467e92f 100755 (executable)
--- a/Mac/BuildScript/build-installer.py
+++ b/Mac/BuildScript/build-installer.py
@@ -1524,6 +1524,10 @@ def buildDMG():
             shellQuote(os.path.join(WORKDIR, 'installer')),
             shellQuote(imagepath + ".tmp.dmg" )))
 
+    # Try to mitigate race condition in certain versions of macOS, e.g. 10.9,
+    # when hdiutil fails with  "Resource busy"
+
+    time.sleep(10)
 
     if not os.path.exists(os.path.join(WORKDIR, "mnt")):
         os.mkdir(os.path.join(WORKDIR, "mnt"))