net/py-socksio: sync with upstream

Taken from: FreeBSD

net/py-socksio/Makefile

@@ -1,5 +1,6 @@
 PORTNAME=	socksio
 PORTVERSION=	1.0.0
+PORTREVISION=	1
 CATEGORIES=	net python
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
@@ -11,8 +12,10 @@ WWW=		https://github.com/sethmlarson/socksio
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
+BUILD_DEPENDS=	${PYTHON_PKGNAMEPREFIX}flit-core>=2<4:devel/py-flit-core@${PY_FLAVOR}
+
 USES=		python
-USE_PYTHON=	autoplist concurrent distutils
+USE_PYTHON=	autoplist concurrent pep517
 
 NO_ARCH=	yes
 

net/py-socksio/files/patch-pyproject.toml

@@ -0,0 +1,9 @@
+--- pyproject.toml.orig	2020-01-09 18:52:35 UTC
++++ pyproject.toml
+@@ -1,5 +1,5 @@
+ [build-system]
+-requires = ["flit_core >=2,<3"]
++requires = ["flit_core >=2,<4"]
+ build-backend = "flit_core.buildapi"
+ 
+ [tool.flit.metadata]