Ticket #49579: patch-Arpack.diff

Portfile

@@ -63 +63 @@
     set universal_archs_supported "ppc ppc64"
 }
 
-variant accelerate conflicts atlas description {build with Accelerate framework} {
+variant accelerate conflicts atlas openblas description {build with Accelerate framework} {
     # the change of LDFLAGS is required to avoid linking against the ATLAS ones
     # if they are present; if we specify /usr/lib/libblas.dylib directly, the
     # linking fails. http://forge.scilab.org/index.php/p/arpack-ng/issues/1220/
@@ -75 +75 @@
     }
 }
 
-variant atlas description {build with atlas} {
+variant atlas conflicts accelerate openblas description {build with atlas} {
     depends_lib-append port:atlas
     configure.args-append --with-blas="-L${prefix}/lib -lsatlas"
 }
 
-if {![variant_isset atlas]} {
+variant openblas conflicts accelerate atlas description {build with openblas} {
+    depends_lib-append path:lib/libopenblas.dylib:OpenBLAS
+    configure.args-append --with-blas="-L${prefix}/lib -lopenblas"
+}
+
+if {![variant_isset atlas] && ![variant_isset openblas]} {
     default_variants +accelerate
 }