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# SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-or-later
# SPDX-FileCopyrightText: Bradley M. Bell <bradbell@seanet.com>
# SPDX-FileContributor: 2003-24 Bradley M. Bell
# ----------------------------------------------------------------------------
# eigen_info()
#
# cppad_has_eigen: (out)
# is 1 (0) if eigen is found (not found)
# If this is 1, the include directory for eigen will automatically be
# added using INCLUDE_DIRECTORIES with the SYSTEM flag.
#
# eigen_LINK_LIBRARIES: (out)
# if cppad_has_eigen is 1,
# is a list of absolute paths to libraries necessary to use eigen
# (should be empty because eigen is a header only library).
#
# This macro may use variables with the name eigen_*
MACRO(eigen_info)
#
# check for pkg-config
IF( NOT PKG_CONFIG_FOUND )
FIND_PACKAGE(PkgConfig REQUIRED)
ENDIF( )
#
#
IF( NOT ${use_cplusplus_2014_ok} )
MESSAGE(STATUS "Eigen not supportedL: because c++14 not supported")
SET(cppad_has_eigen 0)
ELSE( )
#
# eigen_*
pkg_check_modules(eigen QUIET eigen3 )
#
IF( eigen_FOUND )
MESSAGE(STATUS "Eigen found")
SET(cppad_has_eigen 1)
INCLUDE_DIRECTORIES( SYSTEM ${eigen_INCLUDE_DIRS} )
ELSE( )
MESSAGE(STATUS "Eigen not Found: eigen3.pc not in PKG_CONFIG_PATH")
SET(cppad_has_eigen 0)
ENDIF( )
ENDIF( )
#
print_variable( cppad_has_eigen )
ENDMACRO(eigen_info)
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