Index: head/devel/libdouble-conversion/Makefile
===================================================================
--- head/devel/libdouble-conversion/Makefile	(revision 425712)
+++ head/devel/libdouble-conversion/Makefile	(revision 425713)
@@ -1,23 +1,25 @@
 # Created by: Waitman Gobble <waitman@waitman.net>
 # $FreeBSD$
 
 PORTNAME=	libdouble-conversion
 PORTVERSION=	1.1.1
 PORTREVISION=	2
 CATEGORIES=	devel
 
 MAINTAINER=	waitman@waitman.net
 COMMENT=	Binary-decimal and decimal-binary routines for IEEE doubles
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
+BROKEN_arm64=	Fails to build: Target architecture was not detected as supported by Double-Conversion
+
 USES=		libtool
 GNU_CONFIGURE=	yes
 USE_LDCONFIG=	yes
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	waitman
 GH_TAGNAME=	e9b9e5a
 
 .include <bsd.port.mk>