# $NetBSD: Makefile.common,v 1.3 2021/05/29 19:57:21 thor Exp $
#
# used by math/openblas_pthread/Makefile
# used by math/openblas_openmp/Makefile
# used by math/openblas/Makefile
#
# This is the common Makefile for OpenBLAS builds. It depends on
# OPENBLAS_VARIANT = (openblas|openblas_pthread|openblas_openmp)
# being set.

DISTNAME=	OpenBLAS-${OPENBLAS_VERSION}
PKGNAME=	${OPENBLAS_VARIANT}-${OPENBLAS_VERSION}
DIST_SUBDIR=	openblas-${OPENBLAS_VERSION}
CATEGORIES=	math
MASTER_SITES=	${MASTER_SITE_GITHUB:=xianyi/} \
		http://www.netlib.org/lapack/timing/
DISTFILES=	${DISTNAME}.tar.gz ${LARGE_FILE} ${TIMING_FILE}
LARGE_FILE=	large.tgz
TIMING_FILE=	timing.tgz
GITHUB_PROJECT=	OpenBLAS
GITHUB_TAG=	v${OPENBLAS_VERSION}

DISTINFO_FILE=	${.CURDIR}/../../math/openblas/distinfo
PATCHDIR=	${.CURDIR}/../../math/openblas/patches

HOMEPAGE=	https://github.com/xianyi/OpenBLAS
COMMENT=	Optimized BLAS library based on GotoBLAS2
LICENSE=	modified-bsd

# Darwin has a .so/.dylib PLIST issue
# Untested on other platforms
ONLY_FOR_PLATFORM=	Linux-*-* NetBSD-*-*

USE_LANGUAGES=	c fortran
USE_TOOLS+=	gmake perl:build

NO_CONFIGURE=	yes

TEST_TARGET=	tests

# Also set compilers explicitly, overriding Makefile.rule
MAKE_FLAGS+=	CC=${CC:Q}
MAKE_FLAGS+=	CXX=${CXX:Q}
MAKE_FLAGS+=	FC=${FC:Q}

# You may override the autodetected thread count limit.
# Default is detected from build host, which may differ from run host.
BUILD_DEFS+=	OPENBLAS_THREAD_LIMIT

.include "../../mk/bsd.prefs.mk"

# Default checks number of cores of build host.
# Do we want a pkgsrc-wide default?
OPENBLAS_THREAD_LIMIT?=	# empty
.if !empty(OPENBLAS_THREAD_LIMIT)
MAKE_FLAGS+=		NUM_THREADS=${OPENBLAS_THREAD_LIMIT:Q}
.endif
BENCHMARK_MAXTHREADS?=	8

.if ${MACHINE_ARCH:M*64} == ""
MAKE_FLAGS+=		BINARY32=1
.else
MAKE_FLAGS+=		BINARY64=1
.endif
# Those come in separate BLAS-agnostic packages.
# ... except we start headaches about ILP64?
MAKE_FLAGS+=		NO_CBLAS=1 NO_LAPACKE=1

# Separate headers and cmake stuff.
MAKE_FLAGS+=	OPENBLAS_INCLUDE_DIR=${PREFIX}/include/${OPENBLAS_VARIANT}
MAKE_FLAGS+=	OPENBLAS_CMAKE_DIR=${PREFIX}/lib/cmake/${OPENBLAS_VARIANT}

# TODO: Set INTERFACE64=1 with additional OPENBLAS_VARIANTs.
# Need to settle on a convention for SYMBOLSUFFIX first, see
# https://github.com/xianyi/OpenBLAS/issues/646 .
MAKE_FLAGS+=	FIXED_LIBNAME=1
.if ${OPENBLAS_VARIANT} == openblas
MAKE_FLAGS+=	USE_OPENMP=0 USE_THREAD=0 USE_LOCKING=1
BENCHMARK_ENV=	USE_SIMPLE_THREADED_LEVEL3=1
.elif ${OPENBLAS_VARIANT} == openblas_pthread
MAKE_FLAGS+=	LIBNAMESUFFIX=pthread
MAKE_FLAGS+=	USE_OPENMP=0 USE_THREAD=1
BENCHMARK_ENV=	OPENBLAS_NUM_THREADS=${BENCHMARK_MAXTHREADS}
.elif ${OPENBLAS_VARIANT} == openblas_openmp
MAKE_FLAGS+=	LIBNAMESUFFIX=openmp
MAKE_FLAGS+=	USE_OPENMP=1 NO_AFFINITY=1
BENCHMARK_ENV=	OMP_NUM_THREADS=${BENCHMARK_MAXTHREADS}
.endif

SUBST_CLASSES+=		threads
SUBST_STAGE.threads=	pre-build
SUBST_SED.threads+=	-e "s+OPENBLAS_NUM_THREADS+OMP_NUM_THREADS+g"
SUBST_FILES.threads+=	test/Makefile
SUBST_FILES.threads+=	ctest/Makefile

PLIST_SRC=	${.CURDIR}/../../math/openblas/PLIST
PLIST_SUBST+=	OPENBLAS_VARIANT=${OPENBLAS_VARIANT}

post-extract:
	rm ${WRKSRC}/relapack/src/lapack_wrappers.c.orig
	(cd ${DISTDIR}/${DIST_SUBDIR} && \
		${CP} ${LARGE_FILE} ${TIMING_FILE} ${WRKSRC})

# This builds some benchmark programs you can call from ${WRKSRC} afterwards.
.PHONY: benchmark
benchmark: build
	(cd ${WRKSRC} && ${SETENV} ${MAKE_ENV} ${BENCHMARK_ENV} \
		${MAKE_PROGRAM} ${MAKE_FLAGS} hpl)
	(cd ${WRKSRC}/benchmark && ${SETENV} ${MAKE_ENV} \
		${BENCHMARK_ENV} ${MAKE_PROGRAM} ${MAKE_FLAGS})

.include "../../math/openblas/version.mk"

.include "options.mk"