diff --git a/devel/py-qutip/Makefile b/devel/py-qutip/Makefile
index 461786cbdb3a..9c4c35ccc3ff 100644
--- a/devel/py-qutip/Makefile
+++ b/devel/py-qutip/Makefile
@@ -11,6 +11,11 @@ COMMENT=	Quantum toolbox in python
 
 LICENSE=	BSD3CLAUSE
 
+BROKEN_aarch64=		fails to compile: the clang compiler does not support -march=native
+BROKEN_armv6=		fails to compile: the clang compiler does not support -march=native
+BROKEN_armv7=		fails to compile: the clang compiler does not support -march=native
+BROKEN_powerpc64=	fails to compile: the clang compiler does not support -march=native
+
 BUILD_DEPENDS=	${PYNUMPY} \
 		${PYTHON_PKGNAMEPREFIX}scipy>=0.15:science/py-scipy@${PY_FLAVOR}
 RUN_DEPENDS=	${PYNUMPY} \
diff --git a/net-p2p/monero-cli/Makefile b/net-p2p/monero-cli/Makefile
index 77315ed33b93..042435020742 100644
--- a/net-p2p/monero-cli/Makefile
+++ b/net-p2p/monero-cli/Makefile
@@ -16,6 +16,11 @@ COMMENT=	Private, secure, untraceable, decentralised digital currency (CLI)
 
 LICENSE=	BSD3CLAUSE
 
+BROKEN_aarch64=		fails to compile: the clang compiler does not support -march=native
+BROKEN_armv6=		fails to compile: the clang compiler does not support -march=native
+BROKEN_armv7=		fails to compile: the clang compiler does not support -march=native
+BROKEN_powerpc64=	fails to compile: the clang compiler does not support -march=native
+
 LIB_DEPENDS=	\
 		libboost_chrono.so:devel/boost-libs \
 		libboost_date_time.so:devel/boost-libs \