create bsd12 branch

Mk/Uses/blaslapack.mk

@@ -0,0 +1,52 @@
+# $FreeBSD: head/Mk/Uses/blaslapack.mk 434263 2017-02-17 03:10:55Z jbeich $
+#
+# Handle dependencies on Blas / Lapack
+#
+# Feature:	blaslapack
+# Usage:	USES=blaslapack or USES=blaslapack:ARGS
+# Valid ARGS:	atlas gotoblas netlib (default) openblas
+#
+# Provides:	BLASLIB and LAPACKLIB
+#
+# Maintainer:	thierry@FreeBSD.org
+
+.if !defined(_INCLUDE_USES_BLASLAPACK_MK)
+_INCLUDE_USES_BLASLAPACK_MK=	yes
+
+_valid_ARGS=	atlas gotoblas netlib openblas
+
+_DEFAULT_BLASLAPACK=	netlib
+
+.if empty(blaslapack_ARGS)
+blaslapack_ARGS=	${_DEFAULT_BLASLAPACK}
+.endif
+
+LDFLAGS+=	-L${LOCALBASE}/lib
+
+.if ${blaslapack_ARGS} == atlas
+LIB_DEPENDS+=	libatlas.so:math/atlas
+_BLASLIB=	ptf77blas
+LAPACKLIB=	-lalapack -lptcblas
+_ATLASLIB=	atlas
+ATLASLIB=	-l${_ATLASLIB}
+.elif ${blaslapack_ARGS} == gotoblas
+LIB_DEPENDS+=	libgoto2.so:math/gotoblas
+LIB_DEPENDS+=	liblapack.so:math/lapack
+_BLASLIB=	goto2p
+LAPACKLIB=	-lgoto2p
+.elif ${blaslapack_ARGS} == netlib
+LIB_DEPENDS+=	libblas.so:math/blas
+LIB_DEPENDS+=	liblapack.so:math/lapack
+_BLASLIB=	blas
+LAPACKLIB=	-llapack
+.elif ${blaslapack_ARGS} == openblas
+LIB_DEPENDS+=	libopenblas.so:math/openblas
+_BLASLIB=	openblasp
+LAPACKLIB=	-lopenblasp
+.else
+IGNORE=		USES=blaslapack: invalid arguments: ${blaslapack_ARGS}
+.endif
+
+BLASLIB=	-l${_BLASLIB}
+
+.endif