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# Copyright (c) 2017-2023, University of Tennessee. All rights reserved.
# SPDX-License-Identifier: BSD-3-Clause
# This program is free software: you can redistribute it and/or modify it under
# the terms of the BSD 3-Clause license. See the accompanying LICENSE file.
# CXX compiler must match the one used to compiler BLAS++.
# Set it in your environment or here.
# Sadly, pkg-config doesn't provide a way to query CXX,
# CXXFLAGS (only cflags), CPPFLAGS, or LDFLAGS.
#-------------------------------------------------------------------------------
# Set CXXFLAGS and LIBS
pkg_exists := $(shell pkg-config --exists blaspp; echo $$?)
ifeq ($(pkg_exists),0)
# Get flags from pkg-config.
CXX = $(shell pkg-config --variable CXX blaspp)
CXXFLAGS = $(shell pkg-config --cflags blaspp)
LIBS = $(shell pkg-config --libs blaspp)
else
$(warning WARNING: pkg-config couldn't find blaspp. Using hard-coded flags in Makefile.)
# BLAS++ not in pkg-config.
# Here's a hard-coded example using OpenBLAS.
CXXFLAGS = -I/usr/local/blaspp/include -std=c++11
LIBS = -L/usr/local/blaspp/lib$(LIB_SUFFIX) -lblaspp -lopenblas
endif
#-------------------------------------------------------------------------------
# Rules
exe = example_gemm example_util
run = ${addsuffix .run, ${exe}}
txt = ${addsuffix .txt, ${exe}}
.DELETE_ON_ERROR:
.SECONDARY:
.SUFFIXES:
.DEFAULT_GOAL := all
.PRECIOUS: ${txt}
# Serialize everything so that `make test` runs in serial.
.NOTPARALLEL:
all: ${exe}
%: %.o
$(CXX) -o $@ $^ $(LIBS)
%.o: %.cc
$(CXX) $(CXXFLAGS) -c -o $@ $<
clean:
-rm -f ${exe} ${txt} *.o *.d
# CMake uses `make test`, GNU autotools uses `make check`; allow both.
test: check
check: ${run}
# Run example, but don't save results; %.run is dummy filename.
%.run: %
@echo "----------------------------------------------------------------------"
./$< ${test_args}
# Run example and save result in .txt file.
txt: ${txt}
%.txt: %
./$< ${test_args} > $@
#-------------------------------------------------------------------------------
# Debugging
echo:
@echo "PKG_CONFIG_PATH $(PKG_CONFIG_PATH)"
@echo "pkg_exists $(pkg_exists)"
@echo "CXX $(CXX)"
@echo "CXXFLAGS $(CXXFLAGS)"
@echo "LIBS $(LIBS)"
@echo
@echo "exe $(exe)"
@echo "run $(run)"
@echo "txt $(txt)"
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