Index: head/math/py-pyodesys/Makefile
===================================================================
--- head/math/py-pyodesys/Makefile	(revision 480284)
+++ head/math/py-pyodesys/Makefile	(revision 480285)
@@ -1,26 +1,41 @@
 # $FreeBSD$
 
 PORTNAME=	pyodesys
 DISTVERSION=	0.12.3
+PORTREVISION=	1
 CATEGORIES=	math python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Straightforward numerical integration of ODE systems from Python
 
 LICENSE=	BSD2CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 RUN_DEPENDS=	${PYNUMPY} \
 		${PYTHON_PKGNAMEPREFIX}appdirs>0:devel/py-appdirs@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}matplotlib>=2.0.2:math/py-matplotlib@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}scipy>=0.19.1:science/py-scipy@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}sym>=0.3.4:math/py-sym@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}sympy>=1.1.1:math/py-sympy@${PY_FLAVOR}
+TEST_DEPENDS=	${PYTHON_PKGNAMEPREFIX}pytest>0:devel/py-pytest@${PY_FLAVOR}
 
 USES=		python
 USE_PYTHON=	distutils autoplist
 NO_ARCH=	yes
+
+OPTIONS_DEFINE=		EXTRAS
+OPTIONS_DEFAULT=	EXTRAS
+
+EXTRAS_DESC=		Install optional dependencies for additional functionality
+EXTRAS_RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}appdirs>0:devel/py-appdirs@${PY_FLAVOR} \
+			${PYTHON_PKGNAMEPREFIX}pycodeexport>=0.1.2:devel/py-pycodeexport@${PY_FLAVOR} \
+			${PYTHON_PKGNAMEPREFIX}pycompilation>=0.4.3:devel/py-pycompilation@${PY_FLAVOR} \
+			${PYTHON_PKGNAMEPREFIX}pygslodeiv2>=0.9.1:math/py-pygslodeiv2@${PY_FLAVOR} \
+			${PYTHON_PKGNAMEPREFIX}pyodeint>=0.10.1:math/py-pyodeint@${PY_FLAVOR}
+
+do-test: # Tests fail because extra-dependencies are erroneously required: https://github.com/bjodah/pyodesys/issues/97
+	@cd ${WRKSRC} && ${PYTHON_CMD} -m pytest --pyargs ${PORTNAME}
 
 .include <bsd.port.mk>