[pkgsrc/trunk]: pkgsrc/lang/python27 python27: fix build on macOS

[tnn <tnn%pkgsrc.org@localhost>]

details:   https://anonhg.NetBSD.org/pkgsrc/rev/1314b80f46f6
branches:  trunk
changeset: 379263:1314b80f46f6
user:      tnn <tnn%pkgsrc.org@localhost>
date:      Fri May 13 17:32:37 2022 +0000

description:
python27: fix build on macOS

We must pass -isysroot with the explicit path to the MacOSX SDK in CFLAGS.
Without this setup.py fails to find builtin zlib and bzip2.
See comment in ${WRKSRC}/Lib/distutils/unixccompiler.py:find_library_file()
for why this is necessary.

diffstat:

 lang/python27/Makefile |  4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diffs (18 lines):

diff -r e8e814485c6f -r 1314b80f46f6 lang/python27/Makefile
--- a/lang/python27/Makefile    Fri May 13 17:06:01 2022 +0000
+++ b/lang/python27/Makefile    Fri May 13 17:32:37 2022 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.99 2022/02/25 22:41:32 gutteridge Exp $
+# $NetBSD: Makefile,v 1.100 2022/05/13 17:32:37 tnn Exp $
 
 .include "dist.mk"
 
@@ -104,7 +104,7 @@
 # modules will not be built.
 .if ${OPSYS} == "Darwin"
 .  if exists(${OSX_SDK_PATH}/usr/include)
-CFLAGS+=       -I${OSX_SDK_PATH:Q}/usr/include
+CFLAGS+=       -isysroot ${OSX_SDK_PATH:Q}
 .  endif
 .  if exists(${OSX_SDK_PATH}/System/Library/Frameworks/QuickTime.framework)
 PLIST.qt=      yes