Index: head/misc/openhantek/Makefile
===================================================================
--- head/misc/openhantek/Makefile	(revision 543928)
+++ head/misc/openhantek/Makefile	(revision 543929)
@@ -1,28 +1,34 @@
 # $FreeBSD$
 
 PORTNAME=	openhantek
 DISTVERSION=	3.1.2
+PORTREVISION=	1
 CATEGORIES=	misc
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Digital Software Oscilloscope (DSO) software for Hantek oscilloscopes
 
 LICENSE=	GPLv3
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 LIB_DEPENDS=	libfftw3.so:math/fftw3
 
 USES=		cmake compiler:c++11-lang gl localbase qt:5
 USE_GITHUB=	yes
 GH_ACCOUNT=	OpenHantek
 GH_PROJECT=	OpenHantek6022 # there's also the openhantek project which OpenHantek6022 is a fork of
 USE_QT=		core gui opengl printsupport widgets buildtools_build linguist_build qmake_build
 USE_GL=		gl glu
+
+OPTIONS_DEFINE=		HANTEK_AC
+
+HANTEK_AC_DESC=		Allow AC input with a modified hardware
+HANTEK_AC_CMAKE_ON=	-DHANTEK_AC=1
 
 PLIST_FILES=	bin/OpenHantek \
 		etc/devd/openhantek.conf \
 		share/applications/OpenHantek.desktop \
 		share/icons/hicolor/48x48/apps/OpenHantek.png \
 		share/icons/hicolor/scalable/apps/OpenHantek.svg
 
 .include <bsd.port.mk>