Index: math/armadillo/Makefile
===================================================================
--- math/armadillo/Makefile	(revision 537526)
+++ math/armadillo/Makefile	(working copy)
@@ -12,13 +12,12 @@
 LICENSE_FILE=	${WRKSRC}/LICENSE.txt
 
 LIB_DEPENDS=	libboost_date_time.so:devel/boost-libs \
-		libopenblas.so:math/openblas \
 		libarpack.so:math/arpack-ng \
 		libhdf5.so:science/hdf5 \
 		libsuperlu.so:math/superlu \
 		libsz.so:science/szip
 
-USES=		blaslapack cmake compiler:c++11-lang pkgconfig tar:xz
+USES=		blaslapack:openblas cmake compiler:c++11-lang pkgconfig tar:xz
 
 USE_LDCONFIG=	yes
 CMAKE_ARGS+=	-DPKG_CONFIG_DIR=${LOCALBASE}/libdata/pkgconfig/