# Copyright (C) 2011-2013 Istituto Italiano di Tecnologia, Massachussets Institute of Techology

# Authors: Elena Ceseracciu <[email protected]>, Matteo Santoro <[email protected]>

if( ${CMAKE_VERSION} VERSION_GREATER "2.8.5" OR ${CMAKE_VERSION} VERSION_EQUAL "2.8.5")

include(ProcessorCount)

ProcessorCount(N)

if(${N} GREATER 1)

set(MAKE_ARGS -j${N})

endif()

endif()

include(ExternalProject)

if (MSVC)

message(WARNING "Cannot build external project for OpenBLAS package on Windows")

set(Openblas_FOUND FALSE)

else()

ExternalProject_add(buildOpenblas

GIT_REPOSITORY "git://github.com/xianyi/OpenBLAS.git"

GIT_TAG "v0.2.8"

UPDATE_COMMAND ""

BUILD_IN_SOURCE 1

SOURCE_DIR ${EXTERNAL_PREFIX}/src/openblas

INSTALL_DIR ${EXTERNAL_PREFIX}

CONFIGURE_COMMAND ""

PATCH_COMMAND ${CMAKE_COMMAND} -E copy "${CMAKE_CURRENT_LIST_DIR}/../external/Makefile.install.openblas" "<SOURCE_DIR>/Makefile.install"

BUILD_COMMAND NO_SHARED=1 ${CMAKE_MAKE_PROGRAM} libs netlib

INSTALL_COMMAND NO_SHARED=1 ${CMAKE_MAKE_PROGRAM} install PREFIX=<INSTALL_DIR>

)

set(Openblas_FOUND TRUE)

#set(Openblas_LIBRARIES ${Openblas_LIBRARY})

set(BLAS_LAPACK_LIBRARIES ${EXTERNAL_PREFIX}/lib/libopenblas.a)

if( CMAKE_COMPILER_IS_GNUCC)

list(APPEND BLAS_LAPACK_LIBRARIES gfortran pthread)

endif()

set(BLAS_LAPACK_FOUND ${Openblas_FOUND})

set(BLAS_LAPACK_INCLUDE_DIRS ${EXTERNAL_PREFIX}/include)

set_target_properties(buildOpenblas PROPERTIES EXCLUDE_FROM_ALL 1)

endif()