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AkantuMacros.cmake
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#===============================================================================
# @file AkantuMacros.cmake
# @author Nicolas Richart <nicolas.richart@epfl.ch>
# @date Wed Feb 9 10:59:42 2011
#
# @brief Set of macros used by akantu cmake files
#
# @section LICENSE
#
# Copyright (©) 2010-2011 EPFL (Ecole Polytechnique Fédérale de Lausanne)
# Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
#
# Akantu is free software: you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation, either version 3 of the License, or (at your option) any
# later version.
#
# Akantu is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with Akantu. If not, see <http://www.gnu.org/licenses/>.
#
#===============================================================================
#===============================================================================
# macro to include optional packages
macro(add_optional_package PACKAGE DESC DEFAULT)
string(TOUPPER ${PACKAGE} _u_package)
set(option_name AKANTU_USE_${_u_package})
option(${option_name} ${DESC} ${DEFAULT})
if(${option_name})
if(${PACKAGE} MATCHES BLAS)
enable_language(Fortran)
endif()
find_package(${PACKAGE} REQUIRED)
if(${_u_package}_FOUND)
add_definitions(-DAKANTU_USE_${_u_package})
set(AKANTU_EXTERNAL_LIB_INCLUDE_PATH ${AKANTU_EXTERNAL_LIB_INCLUDE_PATH}
${${_u_package}_INCLUDE_PATH}
)
set(AKANTU_EXTERNAL_LIBRARIES ${AKANTU_EXTERNAL_LIBRARIES}
${${_u_package}_LIBRARIES}
)
set(AKANTU_${_u_package}_ON ON)
endif(${_u_package}_FOUND)
else()
set(AKANTU_${_u_package}_ON OFF)
endif(${option_name})
endmacro()
#===============================================================================
macro(check_for_isnan result)
include(CheckFunctionExists)
check_function_exists(std::isnan HAVE_STD_ISNAN)
if(HAVE_STD_ISNAN)
set(result "std::isnan(x)")
else()
check_function_exists(isnan HAVE_ISNAN)
if(HAVE_ISNAN)
set(result "(::isnan(x))")
else()
check_function_exists(_isnan HAVE_ISNAN_MATH_H)
if(HAVE_ISNAN_MATH_H)
set(result "(_isnan(x))")
else()
set(result (x == std::numeric_limits<Real>::quiet_NAN()))
endif()
endif()
endif()
endmacro()
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