sci-libs/openblas: new package with eselect-ldso feature integrated.

Closes: https://bugs.gentoo.org/584534
Closes: https://bugs.gentoo.org/658034
Closes: https://github.com/gentoo/gentoo/pull/12357
Signed-off-by: Mo Zhou <cdluminate@gmail.com>
Signed-off-by: Benda Xu <heroxbd@gentoo.org>

4 files changed, 243 insertions, 0 deletions

diff --git a/sci-libs/openblas/Manifest b/sci-libs/openblas/Manifest
new file mode 100644
index 000000000000..8ebcf20cda70
--- /dev/null
+++ b/sci-libs/openblas/Manifest
@@ -0,0 +1 @@
+DIST openblas-0.3.5.tar.gz 11853101 BLAKE2B a9b249bc397fcb1d80401d1c60c6985803016e4fd0908649fe6386ae84a09a53569814b3af65fd8fbfa92f2cdd5d4af313ba91a80f7daa7e481a7941cbb9af2c SHA512 15520c3eca79b002f1afbee64257afa24705dec667a89bd46acfcdae426e29342816fb586db98ff256fcc9d0fd744b14b347fed23995958e7646a5e3e7310cf4
diff --git a/sci-libs/openblas/files/shared-blas-lapack.patch b/sci-libs/openblas/files/shared-blas-lapack.patch
new file mode 100644
index 000000000000..fc77427362c1
--- /dev/null
+++ b/sci-libs/openblas/files/shared-blas-lapack.patch
@@ -0,0 +1,137 @@
+diff --git a/sci-libs/openblas/files/Makefile b/sci-libs/openblas/files/Makefile
+index 20ec74e..87e842f 100644
+--- a/interface/Makefile
++++ b/interface/Makefile
+@@ -2151,3 +2151,132 @@ cblas_zgeadd.$(SUFFIX) cblas_zgeadd.$(PSUFFIX) : zgeadd.c
+ 
+ cblas_xerbla.$(SUFFIX) cblas_xerbla.$(PSUFFIX) : xerbla.c
+ 	$(CC) -c $(CFLAGS) -DCBLAS $< -o $(@F)
++
++#############################################################################
++# Customized shared objects
++
++FSBLAS1OBJS    = \
++		saxpy.$(SUFFIX) sswap.$(SUFFIX) \
++		scopy.$(SUFFIX) sscal.$(SUFFIX) \
++		sdot.$(SUFFIX) sdsdot.$(SUFFIX) dsdot.$(SUFFIX) \
++		sasum.$(SUFFIX) snrm2.$(SUFFIX) \
++		smax.$(SUFFIX) samax.$(SUFFIX) ismax.$(SUFFIX) isamax.$(SUFFIX) \
++		smin.$(SUFFIX) samin.$(SUFFIX) ismin.$(SUFFIX) isamin.$(SUFFIX) \
++		srot.$(SUFFIX) srotg.$(SUFFIX) srotm.$(SUFFIX) srotmg.$(SUFFIX) \
++		saxpby.$(SUFFIX)
++
++FSBLAS2OBJS    = \
++		sgemv.$(SUFFIX) sger.$(SUFFIX) \
++		strsv.$(SUFFIX) strmv.$(SUFFIX) ssymv.$(SUFFIX) \
++		ssyr.$(SUFFIX)  ssyr2.$(SUFFIX) sgbmv.$(SUFFIX) \
++		ssbmv.$(SUFFIX) sspmv.$(SUFFIX) \
++		sspr.$(SUFFIX)  sspr2.$(SUFFIX) \
++		stbsv.$(SUFFIX) stbmv.$(SUFFIX) \
++		stpsv.$(SUFFIX) stpmv.$(SUFFIX)
++
++FSBLAS3OBJS    = \
++		sgemm.$(SUFFIX) ssymm.$(SUFFIX) strmm.$(SUFFIX) \
++		strsm.$(SUFFIX) ssyrk.$(SUFFIX) ssyr2k.$(SUFFIX) \
++		somatcopy.$(SUFFIX) simatcopy.$(SUFFIX)\
++		sgeadd.$(SUFFIX)
++
++
++FDBLAS1OBJS    = \
++		daxpy.$(SUFFIX) dswap.$(SUFFIX) \
++		dcopy.$(SUFFIX) dscal.$(SUFFIX) \
++		ddot.$(SUFFIX) \
++		dasum.$(SUFFIX) dnrm2.$(SUFFIX) \
++		dmax.$(SUFFIX) damax.$(SUFFIX) idmax.$(SUFFIX) idamax.$(SUFFIX) \
++		dmin.$(SUFFIX) damin.$(SUFFIX) idmin.$(SUFFIX) idamin.$(SUFFIX) \
++		drot.$(SUFFIX) drotg.$(SUFFIX) drotm.$(SUFFIX) drotmg.$(SUFFIX) \
++		daxpby.$(SUFFIX)
++
++FDBLAS2OBJS    = \
++		dgemv.$(SUFFIX) dger.$(SUFFIX) \
++		dtrsv.$(SUFFIX) dtrmv.$(SUFFIX) dsymv.$(SUFFIX) \
++		dsyr.$(SUFFIX)  dsyr2.$(SUFFIX) dgbmv.$(SUFFIX) \
++		dsbmv.$(SUFFIX) dspmv.$(SUFFIX) \
++		dspr.$(SUFFIX)  dspr2.$(SUFFIX) \
++		dtbsv.$(SUFFIX) dtbmv.$(SUFFIX) \
++		dtpsv.$(SUFFIX) dtpmv.$(SUFFIX)
++
++FDBLAS3OBJS    = \
++		dgemm.$(SUFFIX) dsymm.$(SUFFIX) dtrmm.$(SUFFIX) \
++		dtrsm.$(SUFFIX) dsyrk.$(SUFFIX) dsyr2k.$(SUFFIX) \
++		domatcopy.$(SUFFIX) dimatcopy.$(SUFFIX)\
++		dgeadd.$(SUFFIX) 
++
++FCBLAS1OBJS    = \
++		caxpy.$(SUFFIX) caxpyc.$(SUFFIX) cswap.$(SUFFIX) \
++		ccopy.$(SUFFIX) cscal.$(SUFFIX) csscal.$(SUFFIX) \
++		cdotc.$(SUFFIX)  cdotu.$(SUFFIX) \
++		scasum.$(SUFFIX) scnrm2.$(SUFFIX) \
++		scamax.$(SUFFIX) icamax.$(SUFFIX) \
++		scamin.$(SUFFIX) icamin.$(SUFFIX) \
++		csrot.$(SUFFIX) crotg.$(SUFFIX) \
++		caxpby.$(SUFFIX)
++
++FCBLAS2OBJS    = \
++		cgemv.$(SUFFIX) cgeru.$(SUFFIX) cgerc.$(SUFFIX) \
++		ctrsv.$(SUFFIX) ctrmv.$(SUFFIX) \
++		csyr2.$(SUFFIX) cgbmv.$(SUFFIX) \
++		csbmv.$(SUFFIX) \
++		cspr2.$(SUFFIX) \
++		ctbsv.$(SUFFIX) ctbmv.$(SUFFIX) \
++		ctpsv.$(SUFFIX) ctpmv.$(SUFFIX) \
++		chemv.$(SUFFIX) chbmv.$(SUFFIX) \
++		cher.$(SUFFIX)  cher2.$(SUFFIX) \
++		chpmv.$(SUFFIX) chpr.$(SUFFIX)  chpr2.$(SUFFIX)
++
++FCBLAS3OBJS    = \
++		cgemm.$(SUFFIX) csymm.$(SUFFIX) ctrmm.$(SUFFIX) \
++		ctrsm.$(SUFFIX) csyrk.$(SUFFIX) csyr2k.$(SUFFIX) \
++	       	chemm.$(SUFFIX) cherk.$(SUFFIX) cher2k.$(SUFFIX) \
++		comatcopy.$(SUFFIX) cimatcopy.$(SUFFIX)\
++		cgeadd.$(SUFFIX) 
++
++FZBLAS1OBJS    = \
++		zaxpy.$(SUFFIX) zaxpyc.$(SUFFIX) zswap.$(SUFFIX) \
++		zcopy.$(SUFFIX) zscal.$(SUFFIX) zdscal.$(SUFFIX) \
++		zdotc.$(SUFFIX)  zdotu.$(SUFFIX) \
++		dzasum.$(SUFFIX)  dznrm2.$(SUFFIX) \
++		dzamax.$(SUFFIX) izamax.$(SUFFIX) \
++		dzamin.$(SUFFIX) izamin.$(SUFFIX) \
++		zdrot.$(SUFFIX) zrotg.$(SUFFIX) \
++		zaxpby.$(SUFFIX)
++
++FZBLAS2OBJS    = \
++		zgemv.$(SUFFIX) zgeru.$(SUFFIX) zgerc.$(SUFFIX) \
++		ztrsv.$(SUFFIX) ztrmv.$(SUFFIX) \
++		zsyr2.$(SUFFIX) zgbmv.$(SUFFIX) \
++		zsbmv.$(SUFFIX) \
++		zspr2.$(SUFFIX) \
++		ztbsv.$(SUFFIX) ztbmv.$(SUFFIX) \
++		ztpsv.$(SUFFIX) ztpmv.$(SUFFIX) \
++		zhemv.$(SUFFIX) zhbmv.$(SUFFIX) \
++		zher.$(SUFFIX)  zher2.$(SUFFIX) \
++		zhpmv.$(SUFFIX) zhpr.$(SUFFIX)  zhpr2.$(SUFFIX)
++
++FZBLAS3OBJS    = \
++		zgemm.$(SUFFIX) zsymm.$(SUFFIX) ztrmm.$(SUFFIX) \
++		ztrsm.$(SUFFIX) zsyrk.$(SUFFIX) zsyr2k.$(SUFFIX) \
++	       	zhemm.$(SUFFIX) zherk.$(SUFFIX) zher2k.$(SUFFIX) \
++		zomatcopy.$(SUFFIX) zimatcopy.$(SUFFIX)\
++		zgeadd.$(SUFFIX) 
++
++shared-blas-lapack: libblas.so.3 libcblas.so.3 liblapack.so.3
++
++# The list of prerequisite is created by comparing with NETLIB BLAS public API.
++# The symbol cblas_xerbla is missing here, but it does not seem to be provided
++# by libopenblas.so.0 either.
++libblas.so.3: $(FSBLAS1OBJS) $(FSBLAS2OBJS) $(FSBLAS3OBJS) $(FDBLAS1OBJS) $(FDBLAS2OBJS) $(FDBLAS3OBJS) $(FCBLAS1OBJS) $(FCBLAS2OBJS) $(FCBLAS3OBJS) $(FZBLAS1OBJS) $(FZBLAS2OBJS) $(FZBLAS3OBJS) ../kernel/lsame.o ../kernel/scabs1.o ../kernel/dcabs1.o ../driver/others/xerbla.o
++	$(CC) $(CFLAGS) $(LDFLAGS) -shared -o $@ $^ -Wl,-soname,libblas.so.3 -L.. -lopenblas $(EXTRALIB)
++
++libcblas.so.3: $(CSBLAS1OBJS) $(CSBLAS2OBJS) $(CSBLAS3OBJS) $(CDBLAS1OBJS) $(CDBLAS2OBJS) $(CDBLAS3OBJS) $(CCBLAS1OBJS) $(CCBLAS2OBJS) $(CCBLAS3OBJS) $(CZBLAS1OBJS) $(CZBLAS2OBJS) $(CZBLAS3OBJS) ../kernel/lsame.o ../kernel/scabs1.o ../kernel/dcabs1.o ../driver/others/xerbla.o
++	$(CC) $(CFLAGS) $(LDFLAGS) -shared -o $@ $^ -Wl,-soname,libcblas.so.3 -L.. -lopenblas $(EXTRALIB)
++
++liblapack.so.3: $(SLAPACKOBJS) $(DLAPACKOBJS) $(CLAPACKOBJS) $(ZLAPACKOBJS) ../kernel/lsame.o ../driver/others/xerbla.o
++	$(CC) $(CFLAGS) $(LDFLAGS) -shared -o $@ $^ ../lapack-netlib/SRC/*.o -Wl,-soname,liblapack.so.3 -L.. -lopenblas $(EXTRALIB)
++
++clean::
++	rm -f libblas.so.3 libcblas.so.3 liblapack.so.3
diff --git a/sci-libs/openblas/metadata.xml b/sci-libs/openblas/metadata.xml
new file mode 100644
index 000000000000..a5e019212f0d
--- /dev/null
+++ b/sci-libs/openblas/metadata.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="project">
+		<email>sci@gentoo.org</email>
+		<name>Gentoo Science Project</name>
+	</maintainer>
+	<longdescription lang="en">
+		OpenBLAS is an optimized BLAS library based on GotoBLAS2 1.13 BSD version.
+	</longdescription>
+	<use>
+		<flag name="dynamic">Build dynamic architecture detection at run time (for multi targets)</flag>
+		<flag name="pthread">Build with pthread threadding model</flag>
+		<flag name="serial">Build without multi-thraedding</flag>
+		<flag name="eselect-ldso">Enable BLAS/LAPACK runtime switching</flag>
+	</use>
+	<upstream>
+		<remote-id type="github">xianyi/OpenBLAS</remote-id>
+	</upstream>
+</pkgmetadata>
diff --git a/sci-libs/openblas/openblas-0.3.5.ebuild b/sci-libs/openblas/openblas-0.3.5.ebuild
new file mode 100644
index 000000000000..b41803760ae9
--- /dev/null
+++ b/sci-libs/openblas/openblas-0.3.5.ebuild
@@ -0,0 +1,85 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+DESCRIPTION="Optimized BLAS library based on GotoBLAS2"
+HOMEPAGE="http://xianyi.github.com/OpenBLAS/"
+SRC_URI="https://github.com/xianyi/OpenBLAS/tarball/v${PV} -> ${P}.tar.gz"
+
+LICENSE="BSD"
+SLOT="0"
+KEYWORDS="~amd64 ~x86 ~amd64-linux ~x86-linux ~x64-macos ~x86-macos"
+IUSE="dynamic openmp pthread serial static-libs eselect-ldso"
+REQUIRED_USE="?? ( openmp pthread serial )"
+
+RDEPEND="
+>=app-eselect/eselect-blas-0.2
+>=app-eselect/eselect-lapack-0.2
+"
+DEPEND="${RDEPEND}
+	virtual/pkgconfig"
+
+PATCHES=( "${FILESDIR}/shared-blas-lapack.patch" )
+
+openblas_flags() {
+	local flags=()
+	use dynamic && \
+		flags+=( DYNAMIC_ARCH=1 TARGET=GENERIC NUM_THREADS=64 NO_AFFINITY=1 )
+	if use openmp; then
+		flags+=( USE_THREAD=1 USE_OPENMP=1 )
+	elif use pthread; then
+		flags+=( USE_THREAD=1 USE_OPENMP=0 )
+	else
+		flags+=( USE_THREAD=0 ) # serial
+	fi
+	flags+=( DESTDIR="${D}" PREFIX="${EPREFIX}/usr" )
+	flags+=( OPENBLAS_INCLUDE_DIR='$(PREFIX)'/include/${PN} )
+	flags+=( OPENBLAS_LIBRARY_DIR='$(PREFIX)'/$(get_libdir) )
+	echo "${flags[@]}"
+}
+
+src_unpack () {
+	default
+	find "${WORKDIR}" -maxdepth 1 -type d -name \*OpenBLAS\* && \
+		mv "${WORKDIR}"/*OpenBLAS* "${S}" || die
+}
+
+src_compile () {
+	emake $(openblas_flags)
+	emake -Cinterface shared-blas-lapack $(openblas_flags)
+}
+
+src_install () {
+	emake install $(openblas_flags)
+
+	if use eselect-ldso; then
+		dodir /usr/$(get_libdir)/blas/openblas/
+		insinto /usr/$(get_libdir)/blas/openblas/
+		doins interface/libblas.so.3
+		dosym libblas.so.3 usr/$(get_libdir)/blas/openblas/libblas.so
+		doins interface/libcblas.so.3
+		dosym libcblas.so.3 usr/$(get_libdir)/blas/openblas/libcblas.so
+
+		dodir /usr/$(get_libdir)/lapack/openblas/
+		insinto /usr/$(get_libdir)/lapack/openblas/
+		doins interface/liblapack.so.3
+		dosym liblapack.so.3 usr/$(get_libdir)/lapack/openblas/liblapack.so
+	fi
+}
+
+pkg_postinst () {
+	if use eselect-ldso; then
+		eselect blas add $(get_libdir) \
+			"${EROOT}"/usr/$(get_libdir)/blas/openblas openblas
+		eselect lapack add $(get_libdir) \
+			"${EROOT}"/usr/$(get_libdir)/lapack/openblas openblas
+	fi
+}
+
+pkg_postrm () {
+	if use eselect-ldso; then
+		eselect blas validate
+		eselect lapack validate
+	fi
+}