pillow: sync with Gentoo

dev-python/pillow/files/pillow-10.2.0-cross.patch

@@ -0,0 +1,62 @@
+From 774d7a570d9f76903de3c3267512b8a7d252c21e Mon Sep 17 00:00:00 2001
+From: James Le Cuirot <chewi@gentoo.org>
+Date: Fri, 22 Dec 2023 22:38:27 +0000
+Subject: [PATCH] Fix cross-compiling by searching the right lib and include
+ directories
+
+We were previously searching the `{sys.prefix}/lib` and
+`{sys.prefix}/include` directories unconditionally. This is problematic
+when cross-compiling, as it does not take account of any sysroot where
+alternative libraries and headers are located. Adding `-I/usr/include`
+causes the build to explode, at least when cross-compiling from 64-bit
+to 32-bit.
+
+Python does not officially support cross-compiling, but Gentoo achieves
+this by modifying the sysconfig variables like `LIBDIR` and `INCLUDEDIR`
+with great results.
+
+Assuming "lib" is bad. 64-bit Linux systems often use lib64, putting
+32-bit libraries under lib. You cannot assume that either though, as
+pure 64-bit Linux systems may just use lib instead. Things get even
+stranger on RISC-V.
+
+The value of `sys.prefix` changes when using a virtualenv. Dependencies
+may be installed here, so it does make sense to continue supporting this
+case, even if it is incompatible with cross-compiling. Unlike regular
+environments, "lib" is generally used for libraries, although a lib64
+symlink may also be present.
+---
+ setup.py | 13 +++++++++++--
+ 1 file changed, 11 insertions(+), 2 deletions(-)
+
+diff --git a/setup.py b/setup.py
+index 1bf0bcff558..07163d001fc 100755
+--- a/setup.py
++++ b/setup.py
+@@ -15,6 +15,7 @@
+ import struct
+ import subprocess
+ import sys
++import sysconfig
+ import warnings
+ 
+ from setuptools import Extension, setup
+@@ -504,8 +505,16 @@ def build_extensions(self):
+                 for d in os.environ[k].split(os.path.pathsep):
+                     _add_directory(library_dirs, d)
+ 
+-        _add_directory(library_dirs, os.path.join(sys.prefix, "lib"))
+-        _add_directory(include_dirs, os.path.join(sys.prefix, "include"))
++        _add_directory(
++            library_dirs,
++            (sys.prefix == sys.base_prefix and sysconfig.get_config_var("LIBDIR"))
++            or os.path.join(sys.prefix, "lib"),
++        )
++        _add_directory(
++            include_dirs,
++            (sys.prefix == sys.base_prefix and sysconfig.get_config_var("INCLUDEDIR"))
++            or os.path.join(sys.prefix, "include"),
++        )
+ 
+         #
+         # add platform directories

dev-python/pillow/pillow-10.2.0-r1.ebuild

@@ -28,7 +28,7 @@ S="${WORKDIR}/${MY_P}"
 
 LICENSE="HPND"
 SLOT="0"
-KEYWORDS="~alpha amd64 ~arm arm64 ~hppa ~ia64 ~loong ~m68k ~ppc ~ppc64 ~riscv ~s390 ~sparc x86 ~amd64-linux ~x86-linux ~arm64-macos ~x64-macos"
+KEYWORDS="~alpha amd64 arm arm64 ~hppa ~ia64 ~loong ~m68k ~ppc ppc64 ~riscv ~s390 ~sparc x86 ~amd64-linux ~x86-linux ~arm64-macos ~x64-macos"
 IUSE="examples imagequant +jpeg jpeg2k lcms raqm test tiff tk truetype webp xcb zlib"
 REQUIRED_USE="test? ( jpeg jpeg2k lcms tiff truetype )"
 RESTRICT="!test? ( test )"
@@ -72,6 +72,11 @@ EPYTEST_DESELECT=(
 	Tests/test_qt_image_qapplication.py::test_sanity
 )
 
+PATCHES=(
+	# https://github.com/python-pillow/pillow/pull/7634
+	"${FILESDIR}/${P}-cross.patch"
+)
+
 usepil() {
 	usex "${1}" enable disable
 }
@@ -95,14 +100,6 @@ python_configure_all() {
 		$(usepil zlib)_zlib = True
 	EOF
 
-	# setup.py won't let us add the right toolchain paths but it does
-	# accept additional ones from INCLUDE and LIB so set these. You
-	# wouldn't normally need these at all as the toolchain should look
-	# here anyway but it doesn't for this setup.py.
-	export \
-		INCLUDE="${ESYSROOT}"/usr/include \
-		LIB="${ESYSROOT}"/usr/$(get_libdir)
-
 	# We have patched in this env var.
 	tc-export PKG_CONFIG
 }