Improve macOS minimum deployment target decision process

Instead of asking the user to specify a minimum macOS deployment
target, setup.py will now query the value from qmake. A user can
still specify a custom value if they wish to do so.

This simplifies building on the CI, meaning there is no need to
hardcode the minimum deployment targets per branch.

Task-number: PYSIDE-603
Task-number: PYSIDE-606
Change-Id: I55c79dc643b5a2b59d0e65add132c581fb6fc7f4
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>

1 files changed, 14 insertions, 0 deletions

diff --git a/utils.py b/utils.py
index 6c3b90fb2..169e1218b 100644
--- a/utils.py
+++ b/utils.py
@@ -874,3 +874,17 @@ def rpathsHasOrigin(rpaths):
         if match:
             return True
     return False
+
+def memoize(function):
+    """ Decorator to wrap a function with a memoizing callable.
+        It returns cached values when the wrapped function is called with the same arguments.
+    """
+    memo = {}
+    def wrapper(*args):
+        if args in memo:
+            return memo[args]
+        else:
+            rv = function(*args)
+            memo[args] = rv
+            return rv
+    return wrapper