diff --git a/math/msieve/Makefile b/math/msieve/Makefile
index 20e216a6212e..3859b5566ed5 100644
--- a/math/msieve/Makefile
+++ b/math/msieve/Makefile
@@ -1,70 +1,76 @@
 # New ports collection makefile for:	msieve
 # Date created:		2007-01-02
 # Whom:			Daniel Roethlisberger <daniel@roe.ch>
 #
 # $FreeBSD$
 #
 
 PORTNAME=	msieve
 PORTVERSION=	1.23
 PORTREVISION=	1
 CATEGORIES=	math
 MASTER_SITES=	http://www.boo.net/~jasonp/ \
 		http://mirror.roe.ch/dist/msieve/
 DISTNAME=	${PORTNAME}${PORTVERSION:S/.//}
 
 MAINTAINER=	daniel@roe.ch
 COMMENT=	Fast factorization of big integers using MPQS and GNFS
 
 WRKSRC=		${WRKDIR}/${PORTNAME}-${PORTVERSION}
 USE_GMAKE=	yes
 MAKE_ENV=	CPPFLAGS="${CPPFLAGS} -I${LOCALBASE}/include" \
 		LDFLAGS="${LDFLAGS} -L${LOCALBASE}/lib" \
 		PTHREAD_LIBS="${PTHREAD_LIBS}"
 
 PLIST_FILES=	bin/msieve lib/libmsieve.a include/msieve/msieve.h \
 		include/msieve/mp.h include/msieve/util.h
 PLIST_DIRS=	include/msieve
 PORTDOCS=	Changes Readme Readme.nfs Readme.qs
 
 OPTIONS=	OCFLAGS "Enable optimized CFLAGS" On \
 		GNFS "General Number Field Sieve support" On
 
 .include <bsd.port.pre.mk>
 
 # Does not build with GCC 4.2
 .if ${OSVERSION} >= 700042
 USE_GCC=	3.4
 .endif
 
 .if !defined(WITHOUT_OCFLAGS)
 CFLAGS+=	-O3 -ffast-math -fomit-frame-pointer
 .endif
 
 .if !defined(WITHOUT_GNFS)
 LIB_DEPENDS+=	gsl.10:${PORTSDIR}/math/gsl
 ALLTGT_SUFX=	_nfs
 .endif
 
 ALLTGT=		generic
 .if ${ARCH} == "i386"
 ALLTGT=		x86
 .endif
 .if ${ARCH} == "amd64"
 ALLTGT=		x86_64
 .endif
 ALL_TARGET=	${ALLTGT}${ALLTGT_SUFX}
 
+.if ${OSVERSION} >= 700042
+.if ${ARCH} == "sparc64"
+BROKEN=		Does not compile with GCC 4.2
+.endif
+.endif
+
 do-install:
 	${INSTALL_PROGRAM} ${WRKSRC}/msieve ${PREFIX}/bin
 	${MKDIR} ${PREFIX}/include/msieve
 	${INSTALL_DATA} ${WRKSRC}/include/msieve.h ${PREFIX}/include/msieve
 	${INSTALL_DATA} ${WRKSRC}/include/mp.h ${PREFIX}/include/msieve
 	${INSTALL_DATA} ${WRKSRC}/include/util.h ${PREFIX}/include/msieve
 	${INSTALL_DATA} ${WRKSRC}/libmsieve.a ${PREFIX}/lib
 .if !defined(NOPORTDOCS)
 	${MKDIR} ${DOCSDIR}
 	cd ${WRKSRC} && ${INSTALL_DATA} ${PORTDOCS} ${DOCSDIR}
 .endif
 
 .include <bsd.port.post.mk>