Index: head/sysutils/powermon/Makefile
===================================================================
--- head/sysutils/powermon/Makefile	(revision 445351)
+++ head/sysutils/powermon/Makefile	(revision 445352)
@@ -1,28 +1,31 @@
 # $FreeBSD$
 
 PORTNAME=	powermon
 PORTVERSION=	1.0.0
 DISTVERSIONPREFIX=	v
 CATEGORIES=	sysutils
 
 MAINTAINER=	yamagi@yamagi.org
 COMMENT=	Displays the CPUs current power consumption
 
 LICENSE=	BSD2CLAUSE
 LICENSE_FILE=	 ${WRKDIR}/${PORTNAME}-${PORTVERSION}/LICENSE
 
+ONLY_FOR_ARCHS=		amd64
+ONLY_FOR_ARCHS_REASON=	specific to recent x86 processors
+
 USE_GITHUB=	yes
 GH_ACCOUNT=	yamagi
 GH_TAGNAME=	${DISTVERSIONPREFIX}${PORTVERSION}
 
 USES=		gmake
 
 PLIST_FILES=	man/man8/powermon.8.gz sbin/powermon
 
 do-install:
 	${INSTALL_PROGRAM} ${WRKDIR}/${PORTNAME}-${PORTVERSION}/release/powermon \
 		${STAGEDIR}${PREFIX}/sbin/powermon
 	${INSTALL_MAN} ${WRKDIR}/${PORTNAME}-${PORTVERSION}/misc/powermon.8 \
 		${STAGEDIR}${MANPREFIX}/man/man8
 
 .include <bsd.port.mk>