Index: Makefile
===================================================================
--- Makefile
+++ Makefile
@@ -24,9 +24,14 @@
 USE_PYTHON=	concurrent distutils py3kplist
 LDFLAGS+=	-shared
 
-OPTIONS_DEFINE=		ATLAS SUITESPARSE DOCS
-OPTIONS_DEFAULT=	SUITESPARSE
+OPTIONS_DEFINE=		SUITESPARSE DOCS
+OPTIONS_RADIO=		BLASLIB
+OPTIONS_RADIO_BLASLIB=	ATLAS OPENBLAS BLAS
+OPTIONS_DEFAULT=	SUITESPARSE BLAS
 ATLAS_DESC=		Use optimized blas library
+BLAS_DESC=		Use blas+lapack libraries
+OPENBLAS_DESC=		Use openblas ibrary
+
 SUITESPARSE_DESC=	Use AMD and UMFPACK in SuiteSparse
 
 PYDISTUTILS_CONFIGUREARGS+=	--fcompiler=gnu95
@@ -37,8 +42,9 @@
 DOCVERSION=	1.9.1
 
 ATLAS_LIB_DEPENDS=	libatlas.so:${PORTSDIR}/math/atlas
-ATLAS_LIB_DEPENDS_OFF=	libblas.so:${PORTSDIR}/math/blas \
+BLAS_LIB_DEPENDS=	libblas.so:${PORTSDIR}/math/blas \
 			liblapack.so:${PORTSDIR}/math/lapack
+OPENBLAS_LIB_DEPENDS=	libopenblas.so:${PORTSDIR}/math/openblas
 SUITESPARSE_LIB_DEPENDS=libumfpack.so:${PORTSDIR}/math/suitesparse
 
 .include <bsd.port.pre.mk>
@@ -55,10 +61,12 @@
 GCCLIBDIR_CMDS=	${FC} -print-file-name=libgfortran.so|${SED} -e s/libgfortran.so//
 
 pre-configure:
-.if ${PORT_OPTIONS:MATLAS}
-	@${REINPLACE_CMD} -e "s+%%ATLASLIBS%%+alapack, f77blas, cblas, atlas+" ${WRKSRC}/site.cfg
+.if ${PORT_OPTIONS:MOPENBLAS}
+	@${REINPLACE_CMD} -e "s+%%BLASNAME%%+openblas+" ${WRKSRC}/site.cfg
+.elif ${PORT_OPTIONS:MATLAS}
+	@${REINPLACE_CMD} -e "s+%%BLASNAME%%+atlas+" ${WRKSRC}/site.cfg
 .else
-	@${REINPLACE_CMD} -e "s+%%ATLASLIBS%%+lapack, blas+" ${WRKSRC}/site.cfg
+	@${REINPLACE_CMD} -e "s+%%BLASNAME%%+reference+" ${WRKSRC}/site.cfg
 .endif
 .if !${PORT_OPTIONS:MSUITESPARSE}
 	@${REINPLACE_CMD} -e "s+:%%LOCALBASE%%/include/suitesparse++" ${WRKSRC}/site.cfg
Index: files/site.cfg
===================================================================
--- files/site.cfg
+++ files/site.cfg
@@ -1,10 +1,18 @@
 [DEFAULT]
-lapack_type=atlas
+lapack_type=%%BLASNAME%%
 library_dirs = /usr/lib:%%LOCALBASE%%/lib:%%GCCLIBDIR%%
 include_dirs = /usr/include:%%LOCALBASE%%/include:%%LOCALBASE%%/include/suitesparse
 src_dirs = %%LOCALBASE%%/src
 # search static libraries (.a) in preference to shared ones (.so)
 search_static_first = 0
+[reference]
+library_dirs = %%LOCALBASE%%/lib:%%GCCLIBDIR%%
+atlas_libs = lapack, blas, gfortran
+
 [atlas]
 library_dirs = %%LOCALBASE%%/lib:%%GCCLIBDIR%%
-atlas_libs = %%ATLASLIBS%%
+atlas_libs = alapack, f77blas, cblas, atlas, gfortran
+
+[openblas]
+library_dirs = %%LOCALBASE%%/lib:%%GCCLIBDIR%%
+libraries = openblasp, gfortran
\ No newline at end of file