pick upstream patch to fix macos sdk detection

recipe/meta.yaml

@@ -9,8 +9,9 @@ source:
   sha256: b8e2f83c56e141920c39464b852de3719dfbfb6e3c99a2d8da0edf4fb33176ed
   patches:
     - patches/0001-Build-without-USE_WIN32_FILEIO.patch
-    # Revert python-pillow/Pillow#5624 as it causes build to pick up wrong MacOS SDK
-    - patches/0002-Revert-Prefer-command-line-tools-SDK-on-macOS.patch
+    # Backport python-pillow/Pillow#5828 (2 patches), can be dropped for v>=9.0
+    - patches/0002-Only-prefer-command-line-tools-SDK-on-macOS-over-the.patch
+    - patches/0003-Moved-macOS-SDK-logic-into-a-separate-method.patch
 
 build:
   number: 0

recipe/patches/0001-Build-without-USE_WIN32_FILEIO.patch

@@ -1,7 +1,7 @@
 From 889ee00643d8f4d744663aea5f7dda3fe868e829 Mon Sep 17 00:00:00 2001
 From: Ryan May <rmay@ucar.edu>
 Date: Wed, 5 May 2021 12:42:10 -0600
-Subject: [PATCH 1/2] Build without USE_WIN32_FILEIO
+Subject: [PATCH 1/3] Build without USE_WIN32_FILEIO
 
 This keeps things consistent with current conda-forge builds of tiff
 (and poppler).

recipe/patches/0002-Revert-Prefer-command-line-tools-SDK-on-macOS.patch → recipe/patches/0002-Only-prefer-command-line-tools-SDK-on-macOS-over-the.patch

@@ -1,18 +1,18 @@
-From 87a655f186d8ce4858636ff201ee7f3bcd2bffed Mon Sep 17 00:00:00 2001
-From: "H. Vetinari" <h.vetinari@gmx.com>
-Date: Wed, 10 Nov 2021 11:50:55 +1100
-Subject: [PATCH 2/2] Revert "Prefer command line tools SDK on macOS"
+From c60bdf31dade079f53c217edd92230566e700db4 Mon Sep 17 00:00:00 2001
+From: Andrew Murray <radarhere@users.noreply.github.com>
+Date: Thu, 11 Nov 2021 20:47:46 +1100
+Subject: [PATCH 2/3] Only prefer command line tools SDK on macOS over the
+ default
 
-This reverts commit e7270eb5a1dfa99b54dcb74d870aab0a1fe73d56.
 ---
- setup.py | 18 ++++++++----------
- 1 file changed, 8 insertions(+), 10 deletions(-)
+ setup.py | 28 ++++++++++++++++++----------
+ 1 file changed, 18 insertions(+), 10 deletions(-)
 
 diff --git a/setup.py b/setup.py
-index 10c1b585..57451122 100755
+index 10c1b585..341cb331 100755
 --- a/setup.py
 +++ b/setup.py
-@@ -533,16 +533,14 @@ class pil_build_ext(build_ext):
+@@ -533,16 +533,24 @@ class pil_build_ext(build_ext):
                  _add_directory(include_dirs, "/usr/X11/include")
 
              # SDK install path
@@ -34,6 +34,16 @@ index 10c1b585..57451122 100755
 +                )
 +            except Exception:
 +                sdk_path = None
++            if (
++                not sdk_path
++                or sdk_path == "/Applications/Xcode.app/Contents/Developer"
++                "/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk"
++            ):
++                commandlinetools_sdk_path = (
++                    "/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk"
++                )
++                if os.path.exists(commandlinetools_sdk_path):
++                    sdk_path = commandlinetools_sdk_path
              if sdk_path:
                  _add_directory(library_dirs, os.path.join(sdk_path, "usr", "lib"))
                  _add_directory(include_dirs, os.path.join(sdk_path, "usr", "include"))

recipe/patches/0003-Moved-macOS-SDK-logic-into-a-separate-method.patch

@@ -0,0 +1,71 @@
+From d9afb11be92a317de829f82aa175d3cdc572ec8e Mon Sep 17 00:00:00 2001
+From: Andrew Murray <radarhere@users.noreply.github.com>
+Date: Thu, 11 Nov 2021 20:51:13 +1100
+Subject: [PATCH 3/3] Moved macOS SDK logic into a separate method
+
+---
+ setup.py | 41 ++++++++++++++++++++++-------------------
+ 1 file changed, 22 insertions(+), 19 deletions(-)
+
+diff --git a/setup.py b/setup.py
+index 341cb331..7655c209 100755
+--- a/setup.py
++++ b/setup.py
+@@ -405,6 +405,27 @@ class pil_build_ext(build_ext):
+                 self.extensions.remove(extension)
+                 break
+
++    def get_macos_sdk_path(self):
++        try:
++            sdk_path = (
++                subprocess.check_output(["xcrun", "--show-sdk-path"])
++                .strip()
++                .decode("latin1")
++            )
++        except Exception:
++            sdk_path = None
++        if (
++            not sdk_path
++            or sdk_path == "/Applications/Xcode.app/Contents/Developer"
++            "/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk"
++        ):
++            commandlinetools_sdk_path = (
++                "/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk"
++            )
++            if os.path.exists(commandlinetools_sdk_path):
++                sdk_path = commandlinetools_sdk_path
++        return sdk_path
++
+     def build_extensions(self):
+
+         library_dirs = []
+@@ -532,25 +553,7 @@ class pil_build_ext(build_ext):
+                 _add_directory(library_dirs, "/usr/X11/lib")
+                 _add_directory(include_dirs, "/usr/X11/include")
+
+-            # SDK install path
+-            try:
+-                sdk_path = (
+-                    subprocess.check_output(["xcrun", "--show-sdk-path"])
+-                    .strip()
+-                    .decode("latin1")
+-                )
+-            except Exception:
+-                sdk_path = None
+-            if (
+-                not sdk_path
+-                or sdk_path == "/Applications/Xcode.app/Contents/Developer"
+-                "/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk"
+-            ):
+-                commandlinetools_sdk_path = (
+-                    "/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk"
+-                )
+-                if os.path.exists(commandlinetools_sdk_path):
+-                    sdk_path = commandlinetools_sdk_path
++            sdk_path = self.get_macos_sdk_path()
+             if sdk_path:
+                 _add_directory(library_dirs, os.path.join(sdk_path, "usr", "lib"))
+                 _add_directory(include_dirs, os.path.join(sdk_path, "usr", "include"))
+-- 
+2.32.0.windows.2
+