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# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
#[=======================================================================[.rst:
FindArmadillo
-------------
Find the Armadillo C++ library.
Armadillo is a library for linear algebra & scientific computing.
.. versionadded:: 3.18
Support for linking wrapped libraries directly (``ARMA_DONT_USE_WRAPPER``).
Using Armadillo:
::
find_package(Armadillo REQUIRED)
include_directories(${ARMADILLO_INCLUDE_DIRS})
add_executable(foo foo.cc)
target_link_libraries(foo ${ARMADILLO_LIBRARIES})
This module sets the following variables:
::
ARMADILLO_FOUND - set to true if the library is found
ARMADILLO_INCLUDE_DIRS - list of required include directories
ARMADILLO_LIBRARIES - list of libraries to be linked
ARMADILLO_VERSION_MAJOR - major version number
ARMADILLO_VERSION_MINOR - minor version number
ARMADILLO_VERSION_PATCH - patch version number
ARMADILLO_VERSION_STRING - version number as a string (ex: "1.0.4")
ARMADILLO_VERSION_NAME - name of the version (ex: "Antipodean Antileech")
#]=======================================================================]
find_path(ARMADILLO_INCLUDE_DIR
NAMES armadillo
PATHS "$ENV{ProgramFiles}/Armadillo/include"
)
mark_as_advanced(ARMADILLO_INCLUDE_DIR)
if(ARMADILLO_INCLUDE_DIR)
# ------------------------------------------------------------------------
# Extract version information from <armadillo>
# ------------------------------------------------------------------------
# WARNING: Early releases of Armadillo didn't have the arma_version.hpp file.
# (e.g. v.0.9.8-1 in ubuntu maverick packages (2001-03-15))
# If the file is missing, set all values to 0
set(ARMADILLO_VERSION_MAJOR 0)
set(ARMADILLO_VERSION_MINOR 0)
set(ARMADILLO_VERSION_PATCH 0)
set(ARMADILLO_VERSION_NAME "EARLY RELEASE")
if(EXISTS "${ARMADILLO_INCLUDE_DIR}/armadillo_bits/arma_version.hpp")
# Read and parse armdillo version header file for version number
file(STRINGS "${ARMADILLO_INCLUDE_DIR}/armadillo_bits/arma_version.hpp" _ARMA_HEADER_CONTENTS REGEX "#define ARMA_VERSION_[A-Z]+ ")
string(REGEX REPLACE ".*#define ARMA_VERSION_MAJOR ([0-9]+).*" "\\1" ARMADILLO_VERSION_MAJOR "${_ARMA_HEADER_CONTENTS}")
string(REGEX REPLACE ".*#define ARMA_VERSION_MINOR ([0-9]+).*" "\\1" ARMADILLO_VERSION_MINOR "${_ARMA_HEADER_CONTENTS}")
string(REGEX REPLACE ".*#define ARMA_VERSION_PATCH ([0-9]+).*" "\\1" ARMADILLO_VERSION_PATCH "${_ARMA_HEADER_CONTENTS}")
# WARNING: The number of spaces before the version name is not one.
string(REGEX REPLACE ".*#define ARMA_VERSION_NAME\ +\"([0-9a-zA-Z\ _-]+)\".*" "\\1" ARMADILLO_VERSION_NAME "${_ARMA_HEADER_CONTENTS}")
endif()
set(ARMADILLO_VERSION_STRING "${ARMADILLO_VERSION_MAJOR}.${ARMADILLO_VERSION_MINOR}.${ARMADILLO_VERSION_PATCH}")
endif ()
if(EXISTS "${ARMADILLO_INCLUDE_DIR}/armadillo_bits/config.hpp")
file(STRINGS "${ARMADILLO_INCLUDE_DIR}/armadillo_bits/config.hpp" _ARMA_CONFIG_CONTENTS REGEX "^#define ARMA_USE_[A-Z]+")
string(REGEX MATCH "ARMA_USE_WRAPPER" _ARMA_USE_WRAPPER "${_ARMA_CONFIG_CONTENTS}")
string(REGEX MATCH "ARMA_USE_LAPACK" _ARMA_USE_LAPACK "${_ARMA_CONFIG_CONTENTS}")
string(REGEX MATCH "ARMA_USE_BLAS" _ARMA_USE_BLAS "${_ARMA_CONFIG_CONTENTS}")
string(REGEX MATCH "ARMA_USE_ARPACK" _ARMA_USE_ARPACK "${_ARMA_CONFIG_CONTENTS}")
string(REGEX MATCH "ARMA_USE_HDF5" _ARMA_USE_HDF5 "${_ARMA_CONFIG_CONTENTS}")
endif()
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
# If _ARMA_USE_WRAPPER is set, then we just link to armadillo, but if it's not then we need support libraries instead
set(_ARMA_SUPPORT_LIBRARIES)
if(_ARMA_USE_WRAPPER)
# Link to the armadillo wrapper library.
find_library(ARMADILLO_LIBRARY
NAMES armadillo
NAMES_PER_DIR
PATHS
"$ENV{ProgramFiles}/Armadillo/lib"
"$ENV{ProgramFiles}/Armadillo/lib64"
"$ENV{ProgramFiles}/Armadillo"
)
mark_as_advanced(ARMADILLO_LIBRARY)
set(_ARMA_REQUIRED_VARS ARMADILLO_LIBRARY)
else()
# Link directly to individual components.
set(ARMADILLO_LIBRARY "")
foreach(pkg
LAPACK
BLAS
ARPACK
HDF5
)
if(_ARMA_USE_${pkg})
find_package(${pkg} QUIET)
list(APPEND _ARMA_REQUIRED_VARS "${pkg}_FOUND")
if(${pkg}_FOUND)
list(APPEND _ARMA_SUPPORT_LIBRARIES ${${pkg}_LIBRARIES})
endif()
endif()
endforeach()
endif()
find_package_handle_standard_args(Armadillo
REQUIRED_VARS ARMADILLO_INCLUDE_DIR ${_ARMA_REQUIRED_VARS}
VERSION_VAR ARMADILLO_VERSION_STRING)
if (ARMADILLO_FOUND)
set(ARMADILLO_INCLUDE_DIRS ${ARMADILLO_INCLUDE_DIR})
set(ARMADILLO_LIBRARIES ${ARMADILLO_LIBRARY} ${_ARMA_SUPPORT_LIBRARIES})
endif ()
# Clean up internal variables
unset(_ARMA_REQUIRED_VARS)
unset(_ARMA_SUPPORT_LIBRARIES)
unset(_ARMA_USE_WRAPPER)
unset(_ARMA_USE_LAPACK)
unset(_ARMA_USE_BLAS)
unset(_ARMA_USE_ARPACK)
unset(_ARMA_USE_HDF5)
unset(_ARMA_CONFIG_CONTENTS)
unset(_ARMA_HEADER_CONTENTS)
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