Index: math/gmp/Makefile
===================================================================
--- math/gmp/Makefile	(revision 468668)
+++ math/gmp/Makefile	(working copy)
@@ -11,8 +11,9 @@
 
 LICENSE=	LGPL3
 
-OPTIONS_DEFINE=	CPU_OPTS
+OPTIONS_DEFINE=	CPU_OPTS AVOID_ASM
 CPU_OPTS_DESC=	Enable assembly optimizations for your CPU
+AVOID_ASM_DESC=	Avoid assembly code that fails compile (arm,arm64)
 
 USES=		libtool makeinfo tar:xz
 HAS_CONFIGURE=	yes
@@ -31,6 +32,10 @@
 
 .include <bsd.port.pre.mk>
 
+.if ${PORT_OPTIONS:MAVOID_ASM}
+CONFIGURE_ARGS+= --disable-assembly
+.endif
+
 .if ! ${PORT_OPTIONS:MCPU_OPTS}
 CONFIGURE_ARGS+=--build=${CONFIGURE_TARGET}
 .elif ${ARCH:S/64//} != ${ARCH}