cmake_minimum_required(VERSION 2.8.5)

project(mlpack C CXX)

include(CMake/cotire.cmake)

# First, define all the compilation options.

# We default to debugging mode for developers.

option(DEBUG "Compile with debugging information." OFF)

option(PROFILE "Compile with profiling information." OFF)

option(ARMA_EXTRA_DEBUG "Compile with extra Armadillo debugging symbols." OFF)

option(MATLAB_BINDINGS "Compile MATLAB bindings if MATLAB is found." OFF)

option(TEST_VERBOSE "Run test cases with verbose output." OFF)

option(BUILD_TESTS "Build tests." ON)

option(BUILD_CLI_EXECUTABLES "Build command-line executables." ON)

option(BUILD_PYTHON_BINDINGS "Build Python bindings." ON)

option(BUILD_SHARED_LIBS

"Compile shared libraries (if OFF, static libraries are compiled)." ON)

option(BUILD_WITH_COVERAGE

"Build with support for code coverage tools (gcc only)." OFF)

option(MATHJAX

"Use MathJax for HTML Doxygen output (disabled by default)." OFF)

option(FORCE_CXX11

"Don't check that the compiler supports C++11, just assume it. Make sure to specify any necessary flag to enable C++11 as part of CXXFLAGS."

OFF)

enable_testing()

# Ensure that we have a C++11 compiler. In newer versions of CMake, this is

# done with target_compile_features() when the mlpack library target is added in

# src/mlpack/CMakeLists.txt.

if ((${CMAKE_MAJOR_VERSION} LESS 3 OR

(${CMAKE_MAJOR_VERSION} EQUAL 3 AND ${CMAKE_MINOR_VERSION} LESS 1))

AND NOT FORCE_CXX11)

# Older versions of CMake do not support target_compile_features(), so we have

# to use something kind of hacky.

include(CMake/CXX11.cmake)

check_for_cxx11_compiler(HAS_CXX11)

if(NOT HAS_CXX11)

message(FATAL_ERROR "No C++11 compiler available!")

endif()

enable_cxx11()

else()

# set required standard to c++11

set(CMAKE_CXX_STANDARD 11)

set(CMAKE_CXX_STANDARD_REQUIRED ON)

endif ()

# Otherwise, we may have to set the C++11 mode after the mlpack target is

# defined.

# Include modules in the CMake directory.

set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/CMake")

# This is as of yet unused.

#option(PGO "Use profile-guided optimization if not a debug build" ON)

# Set the CFLAGS and CXXFLAGS depending on the options the user specified.

# Only GCC-like compilers support -Wextra, and other compilers give tons of

# output for -Wall, so only -Wall and -Wextra on GCC.

if(CMAKE_COMPILER_IS_GNUCC OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -ftemplate-depth=1000")

set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra")

endif()

# These support libraries are used if we need to link against something

# specific. This list is a subset of MLPACK_LIBRARIES.

set(COMPILER_SUPPORT_LIBRARIES "")

# If using clang, we have to link against libc++ depending on the

# OS (at least on some systems). Further, gcc sometimes optimizes calls to

# math.h functions, making -lm unnecessary with gcc, but it may still be

# necessary with clang.

if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")

if (APPLE)

# Detect OS X version. Use '/usr/bin/sw_vers -productVersion' to

# extract V from '10.V.x'.

exec_program(/usr/bin/sw_vers ARGS

-productVersion OUTPUT_VARIABLE MACOSX_VERSION_RAW)

string(REGEX REPLACE

"10\\.([0-9]+).*" "\\1"

MACOSX_VERSION

"${MACOSX_VERSION_RAW}")

# OSX Lion (10.7) and OS X Mountain Lion (10.8) doesn't automatically

# select the right stdlib.

if(${MACOSX_VERSION} LESS 9)

set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -stdlib=libc++")

set(CMAKE_SHARED_LINKER_FLAGS

"${CMAKE_SHARED_LINKER_FLAGS} -stdlib=libc++")

set(CMAKE_MODULE_LINKER_FLAGS

"${CMAKE_MODULE_LINKER_FLAGS} -stdlib=libc++")

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++")

endif()

endif()

# Link everything with -lm.

set(COMPILER_SUPPORT_LIBRARIES ${COMPILER_SUPPORT_LIBRARIES} "m")

set(MLPACK_LIBRARIES ${MLPACK_LIBRARIES} "m")

# Use -pthread, but not on OS X.

if (NOT APPLE)

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pthread")

endif ()

endif()

# Setup build for test coverage

if(BUILD_WITH_COVERAGE)

# Currently coverage only works with GNU g++

if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")

# Find gcov and lcov

find_program(GCOV gcov)

find_program(LCOV lcov)

if(NOT GCOV)

message(FATAL_ERROR

"gcov not found! gcov is required when BUILD_WITH_COVERAGE=ON.")

endif()

set(MLPACK_LIBRARIES ${MLPACK_LIBRARIES} "supc++")

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} --coverage -fno-inline -fno-inline-small-functions -fno-default-inline -fprofile-arcs -fkeep-inline-functions")

message(STATUS "Adding debug compile options for code coverage.")

# Remove optimizations for better line coverage

set(DEBUG ON)

if(LCOV)

configure_file(CMake/mlpack_coverage.in mlpack_coverage @ONLY)

add_custom_target(mlpack_coverage DEPENDS mlpack_test COMMAND ${PROJECT_BINARY_DIR}/mlpack_coverage)

else()

message(WARNING "'lcov' not found; local coverage report is disabled. "

"Install 'lcov' and rerun cmake to generate local coverage report.")

endif()

else()

message(FATAL_ERROR "BUILD_WITH_COVERAGE can only work with GNU environment.")

endif()

endif()

# For clock_gettime().

if (UNIX AND NOT APPLE AND NOT HAIKU)

set(MLPACK_LIBRARIES ${MLPACK_LIBRARIES} "rt")

endif ()

# Debugging CFLAGS. Turn optimizations off; turn debugging symbols on.

if(DEBUG)

if (NOT MSVC)

add_definitions(-DDEBUG)

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g -O0 -ftemplate-backtrace-limit=0")

set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c99 -g -O0")

else()

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /bigobj")

endif()

# mlpack uses it's own mlpack::backtrace class based on Binary File Descriptor

# <bfd.h> and linux Dynamic Loader <libdl.h> and more portable version in future

if(CMAKE_SYSTEM_NAME STREQUAL "Linux")

find_package(Bfd)

find_package(LibDL)

if(LIBBFD_FOUND AND LIBDL_FOUND)

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -rdynamic")

set(MLPACK_INCLUDE_DIRS ${MLPACK_INCLUDE_DIRS} ${LIBBFD_INCLUDE_DIRS}

${LIBDL_INCLUDE_DIRS})

set(MLPACK_LIBRARIES ${MLPACK_LIBRARIES} ${LIBBFD_LIBRARIES}

${LIBDL_LIBRARIES})

add_definitions(-DHAS_BFD_DL)

else()

message(WARNING "No libBFD and/or libDL has been found!")

endif()

endif()

else()

add_definitions(-DARMA_NO_DEBUG)

add_definitions(-DNDEBUG)

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O3")

set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c99 -O3")

endif()

# Profiling CFLAGS. Turn profiling information on.

if(CMAKE_COMPILER_IS_GNUCC AND PROFILE)

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pg")

set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -pg")

set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -pg")

endif()

# If the user asked for running test cases with verbose output, turn that on.

if(TEST_VERBOSE)

add_definitions(-DTEST_VERBOSE)

endif()

# If the user asked for extra Armadillo debugging output, turn that on.

if(ARMA_EXTRA_DEBUG)

add_definitions(-DARMA_EXTRA_DEBUG)

endif()

# Now, find the libraries we need to compile against. Several variables can be

# set to manually specify the directory in which each of these libraries

# resides.

# ARMADILLO_LIBRARY - location of libarmadillo.so / armadillo.lib

# ARMADILLO_INCLUDE_DIR - directory containing <armadillo>

# ARMADILLO_INCLUDE_DIRS - directories necessary for Armadillo includes

# BOOST_ROOT - root of Boost installation

# BOOST_INCLUDEDIR - include directory for Boost

# BOOST_LIBRARYDIR - library directory for Boost

# MATHJAX_ROOT - root of MathJax installation

find_package(Armadillo 6.500.0 REQUIRED)

# If Armadillo was compiled without ARMA_64BIT_WORD and we are on a 64-bit

# system (where size_t will be 64 bits), suggest to the user that they should

# compile Armadillo with 64-bit words. Note that with Armadillo 5.000.0 and

# newer, ARMA_64BIT_WORD is enabled by default.

if(CMAKE_SIZEOF_VOID_P EQUAL 8)

# Check the version, to see if ARMA_64BIT_WORD is enabled by default.

set(ARMA_HAS_64BIT_WORD 0)

if(NOT (${ARMADILLO_VERSION_MAJOR} LESS 5))

set(ARMA_HAS_64BIT_WORD 1)

else()

# Can we open the configuration file? If not, issue a warning.

if(NOT EXISTS "${ARMADILLO_INCLUDE_DIR}/armadillo_bits/config.hpp")

message(WARNING "Armadillo configuration file "

"(${ARMADILLO_INCLUDE_DIR}/armadillo_bits/config.hpp) does not exist!")

else()

# We are on a 64-bit system. Does Armadillo have ARMA_64BIT_WORD enabled?

file(READ "${ARMADILLO_INCLUDE_DIR}/armadillo_bits/config.hpp" ARMA_CONFIG)

string(REGEX MATCH

"[\r\n][ ]*#define ARMA_64BIT_WORD"

ARMA_HAS_64BIT_WORD_PRE

"${ARMA_CONFIG}")

string(LENGTH "${ARMA_HAS_64BIT_WORD_PRE}" ARMA_HAS_64BIT_WORD)

endif()

endif()

if(ARMA_HAS_64BIT_WORD EQUAL 0)

message(WARNING "This is a 64-bit system, but Armadillo was compiled "

"without 64-bit index support. Consider recompiling Armadillo with "

"ARMA_64BIT_WORD to enable 64-bit indices (large matrix support). "

"mlpack will still work without ARMA_64BIT_WORD defined, but will not "

"scale to matrices with more than 4 billion elements.")

endif()

else()

# If we are on a 32-bit system, we must manually specify the size of the word

# to be 32 bits, since otherwise Armadillo will produce a warning that it is

# disabling 64-bit support.

if (CMAKE_SIZEOF_VOID_P EQUAL 4)

add_definitions(-DARMA_32BIT_WORD)

endif ()

endif()

# On Windows, Armadillo should be using LAPACK and BLAS but we still need to

# link against it. We don't want to use the FindLAPACK or FindBLAS modules

# because then we are required to have a FORTRAN compiler (argh!) so we will try

# and find LAPACK and BLAS ourselves, using a slightly modified variant of the

# script Armadillo uses to find these.

if (WIN32)

find_library(LAPACK_LIBRARY

NAMES lapack liblapack lapack_win32_MT lapack_win32

PATHS "C:/Program Files/Armadillo"

PATH_SUFFIXES "examples/lib_win32/")

if (NOT LAPACK_LIBRARY)

message(FATAL_ERROR "Cannot find LAPACK library (.lib)!")

endif ()

find_library(BLAS_LIBRARY

NAMES blas libblas blas_win32_MT blas_win32

PATHS "C:/Program Files/Armadillo"

PATH_SUFFIXES "examples/lib_win32/")

if (NOT BLAS_LIBRARY)

message(FATAL_ERROR "Cannot find BLAS library (.lib)!")

endif ()

# Piggyback LAPACK and BLAS linking into Armadillo link.

set(ARMADILLO_LIBRARIES

${ARMADILLO_LIBRARIES} ${BLAS_LIBRARY} ${LAPACK_LIBRARY})

endif ()

# Include directories for the previous dependencies.

set(MLPACK_INCLUDE_DIRS ${MLPACK_INCLUDE_DIRS} ${ARMADILLO_INCLUDE_DIRS})

set(MLPACK_LIBRARIES ${MLPACK_LIBRARIES} ${ARMADILLO_LIBRARIES})

# Unfortunately this configuration variable is necessary and will need to be

# updated as time goes on and new versions are released.

set(Boost_ADDITIONAL_VERSIONS

"1.65.1" "1.65.0" "1.65"

"1.64.1" "1.64.0" "1.64"

"1.63.1" "1.63.0" "1.63"

"1.62.1" "1.62.0" "1.62"

"1.61.1" "1.61.0" "1.61"

"1.60.1" "1.60.0" "1.60"

"1.59.1" "1.59.0" "1.59"

"1.58.1" "1.58.0" "1.58"

"1.57.1" "1.57.0" "1.57"

"1.56.1" "1.56.0" "1.56"

"1.55.1" "1.55.0" "1.55"

"1.54.1" "1.54.0" "1.54"

"1.53.1" "1.53.0" "1.53"

"1.52.1" "1.52.0" "1.52"

"1.51.1" "1.51.0" "1.51"

"1.50.1" "1.50.0" "1.50"

"1.49.1" "1.49.0" "1.49")

find_package(Boost 1.49

COMPONENTS

program_options

unit_test_framework

serialization

REQUIRED

)

link_directories(${Boost_LIBRARY_DIRS})

# In Visual Studio, automatic linking is performed, so we don't need to worry

# about it. Clear the list of libraries to link against and let Visual Studio

# handle it.

if (MSVC)

link_directories(${Boost_LIBRARY_DIRS})

set(Boost_LIBRARIES "")

endif ()

set(MLPACK_INCLUDE_DIRS ${MLPACK_INCLUDE_DIRS} ${Boost_INCLUDE_DIRS})

set(MLPACK_LIBRARIES ${MLPACK_LIBRARIES} ${Boost_LIBRARIES})

set(MLPACK_LIBRARY_DIRS ${MLPACK_LIBRARY_DIRS} ${Boost_LIBRARY_DIRS})

# For Boost testing framework (will have no effect on non-testing executables).

# This specifies to Boost that we are dynamically linking to the Boost test

# library.

add_definitions(-DBOOST_TEST_DYN_LINK)

# Detect OpenMP support in a compiler. If the compiler supports OpenMP, flags

# to compile with OpenMP are returned and added and the HAS_OPENMP definition is

# added for compilation.

#

# This way we can skip calls to functions defined in omp.h with code like:

# #ifdef HAS_OPENMP

# {

# ... openMP code here ...

# }

# #endif

find_package(OpenMP)

if (OPENMP_FOUND)

add_definitions(-DHAS_OPENMP)

set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${OpenMP_C_FLAGS}")

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS}")

else ()

# Disable warnings for all the unknown OpenMP pragmas.

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-unknown-pragmas")

endif ()

# Create a 'distclean' target in case the user is using an in-source build for

# some reason.

include(CMake/TargetDistclean.cmake OPTIONAL)

include_directories(BEFORE ${MLPACK_INCLUDE_DIRS})

include_directories(BEFORE ${CMAKE_SOURCE_DIR}/src/)

# On Windows, things end up under Debug/ or Release/.

if (WIN32)

set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})

set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})

set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})

else ()

# If not on Windows, put them under more standard UNIX-like places. This is

# necessary, otherwise they would all end up in

# ${CMAKE_BINARY_DIR}/src/mlpack/methods/... or somewhere else random like

# that.

set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib/)

set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin/)

set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib/)

endif ()

# Determine whether or not this is a git repository, so that we can set the

# version number if necessary.

find_package(Git)

set (USING_GIT "NO")

if (GIT_FOUND)

# Run 'git rev-parse HEAD' to find out if this is a working copy. If the

# return code is not 0, then it isn't.

execute_process(COMMAND ${GIT_EXECUTABLE} rev-parse HEAD

WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}

OUTPUT_VARIABLE MLPACK_TMP_REV_INFO

ERROR_VARIABLE MLPACK_TMP_REV_INFO_ERROR

RESULT_VARIABLE MLPACK_TMP_REV_INFO_RESULT

OUTPUT_STRIP_TRAILING_WHITESPACE)

if (${MLPACK_TMP_REV_INFO_RESULT} EQUAL 0)

set (USING_GIT "YES")

add_definitions(-DMLPACK_GIT_VERSION)

include(CMake/CreateGitVersionHeader.cmake)

add_custom_target(mlpack_gitversion ALL

COMMAND ${CMAKE_COMMAND} -P CMake/CreateGitVersionHeader.cmake

WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}

COMMENT "Updating gitversion.hpp (if necessary)")

# Add gitversion.hpp to the list of sources.

set(MLPACK_SRCS ${MLPACK_SRCS}

"${CMAKE_CURRENT_SOURCE_DIR}/src/mlpack/core/util/gitversion.hpp")

endif ()

endif ()

# Create a target to generate arma_config.hpp, which is used to warn the user

# when they are doing something stupid when linking something against mlpack.

include(CMake/CreateArmaConfigInfo.cmake)

add_custom_target(mlpack_arma_config ALL

COMMAND ${CMAKE_COMMAND}

-D ARMADILLO_INCLUDE_DIR="${ARMADILLO_INCLUDE_DIR}"

-D ARMADILLO_VERSION_MAJOR="${ARMADILLO_VERSION_MAJOR}"

-P CMake/CreateArmaConfigInfo.cmake

WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}

COMMENT "Updating arma_config.hpp (if necessary)")

set(MLPACK_SRCS ${MLPACK_SRCS}

"${CMAKE_CURRENT_SOURCE_DIR}/src/mlpack/core/util/arma_config.hpp")

# Recurse into the rest of the project.

add_subdirectory(src/mlpack)

# If we need to keep gitversion.hpp up to date, then make sure the mlpack target

# depends on it.

if (USING_GIT STREQUAL "YES")

add_dependencies(mlpack mlpack_gitversion)

endif ()

# Make the mlpack_arma_config target depend on mlpack (we couldn't do this

# before the add_subdirectory() call because the mlpack target didn't exist

# before that).

add_dependencies(mlpack mlpack_arma_config)

# Make a target to generate the documentation. If Doxygen isn't installed, then

# I guess this option will just be unavailable.

find_package(Doxygen)

if (DOXYGEN_FOUND)

if (MATHJAX)

find_package(MathJax)

if (NOT MATHJAX_FOUND)

message(STATUS "Using MathJax at the MathJax Content Delivery Network. "

"Be careful, formulas will not be shown without the internet.")

endif ()

endif ()

# Preprocess the Doxyfile. This is done before 'make doc'.

add_custom_command(OUTPUT ${CMAKE_BINARY_DIR}/Doxyfile

PRE_BUILD

COMMAND ${CMAKE_COMMAND}

-D DESTDIR="${CMAKE_BINARY_DIR}"

-D MATHJAX="${MATHJAX}"

-D MATHJAX_FOUND="${MATHJAX_FOUND}"

-D MATHJAX_PATH="${MATHJAX_PATH}"

-P "${CMAKE_CURRENT_SOURCE_DIR}/CMake/GenerateDoxyfile.cmake"

WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"

DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/Doxyfile"

COMMENT "Creating Doxyfile to generate Doxygen documentation"

)

# Generate documentation.

add_custom_target(doc

COMMAND "${DOXYGEN_EXECUTABLE}" "${CMAKE_BINARY_DIR}/Doxyfile"

DEPENDS "${CMAKE_BINARY_DIR}/Doxyfile"

WORKING_DIRECTORY "${CMAKE_BINARY_DIR}"

COMMENT "Generating API documentation with Doxygen"

)

install(DIRECTORY ${CMAKE_BINARY_DIR}/doc/html

DESTINATION share/doc/mlpack

COMPONENT doc

OPTIONAL

)

endif ()

# Make a target to generate the man page documentation, but only if we are on a

# UNIX-like system.

if (UNIX)

find_program(TXT2MAN txt2man)

# It's not a requirement that we make man pages.

if (NOT TXT2MAN)

message(WARNING "txt2man not found; man pages will not be generated.")

else ()

# We have the tools. We can make them.

add_custom_target(man ALL

${CMAKE_CURRENT_SOURCE_DIR}/CMake/allexec2man.sh

${CMAKE_CURRENT_SOURCE_DIR}/CMake/exec2man.sh

${CMAKE_BINARY_DIR}/share/man

WORKING_DIRECTORY

${CMAKE_BINARY_DIR}/bin

DEPENDS

mlpack_adaboost

mlpack_approx_kfn

mlpack_kfn

mlpack_knn

mlpack_krann

mlpack_cf

mlpack_dbscan

mlpack_decision_stump

mlpack_decision_tree

mlpack_det

mlpack_emst

mlpack_fastmks

mlpack_gmm_train

mlpack_gmm_probability

mlpack_gmm_generate

mlpack_hmm_generate

mlpack_hmm_loglik

mlpack_hmm_train

mlpack_hmm_viterbi

mlpack_hoeffding_tree

mlpack_kernel_pca

mlpack_kmeans

mlpack_lars

mlpack_linear_regression

mlpack_local_coordinate_coding

mlpack_logistic_regression

mlpack_lsh

mlpack_mean_shift

mlpack_nbc

mlpack_nca

mlpack_nmf

mlpack_pca

mlpack_perceptron

mlpack_radical

mlpack_range_search

mlpack_softmax_regression

mlpack_sparse_coding

COMMENT "Generating man pages from built executables."

)

# Set the rules to install the documentation.

install(DIRECTORY ${CMAKE_BINARY_DIR}/share/man/

DESTINATION share/man/man1/)

endif ()

endif ()

# Create the pkg-config file, if we have pkg-config.

find_package(PkgConfig)

if (PKG_CONFIG_FOUND)

# mlpack.pc must be generated as a separate target, otherwise it is possible

# that the given version could be out of date. We don't need to worry about

# the library or include directories changing, because CMake will re-run this

# portion of the code whenever any of those changes. But the version must be

# re-extracted every time the library is built.

# So, we have to parse our list of library directories, libraries, and include

# directories in order to get the correct line to give to pkg-config.

# Next, adapt the list of include directories.

list(REMOVE_DUPLICATES MLPACK_INCLUDE_DIRS)

foreach (incldir ${MLPACK_INCLUDE_DIRS})

# Filter out some obviously unnecessary directories.

if (NOT "${incldir}" STREQUAL "/usr/include")

set(MLPACK_INCLUDE_DIRS_STRING

"${MLPACK_INCLUDE_DIRS_STRING} -I${incldir}")

endif ()

endforeach ()

# Add the install directory too.

set(MLPACK_INCLUDE_DIRS_STRING

"${MLPACK_INCLUDE_DIRS_STRING} -I${CMAKE_INSTALL_PREFIX}/include/")

# Create the list of link directories.

set(MLPACK_LIBRARIES_LIST)

foreach (linkdir ${MLPACK_LIBRARY_DIRS})

list(APPEND MLPACK_LIBRARIES_LIST "-L${linkdir}")

endforeach ()

foreach(lib ${MLPACK_LIBRARIES})

string(SUBSTRING "${lib}" 0 1 first)

if ("${first}" STREQUAL "/")

# We need to split the directory and the library.

string(REGEX REPLACE "(.*/)[^/]*$" "\\1" library_dir "${lib}")

string(REGEX REPLACE ".*/lib([^/]*).so.*$" "\\1" library_name "${lib}")

list(APPEND MLPACK_LIBRARIES_LIST "-L${library_dir}")

list(APPEND MLPACK_LIBRARIES_LIST "-l${library_name}")

else ()

list(APPEND MLPACK_LIBRARIES_LIST "-l${lib}")

endif ()

endforeach ()

# Don't forget to add mlpack as a dependency too.

list(APPEND MLPACK_LIBRARIES_LIST "-L${CMAKE_INSTALL_PREFIX}/lib/")

list(APPEND MLPACK_LIBRARIES_LIST "-lmlpack")

# Filter duplicate dependencies and directories.

list(REMOVE_DUPLICATES MLPACK_LIBRARIES_LIST)

# Filter out known unnecessary directories.

list(REMOVE_ITEM MLPACK_LIBRARIES_LIST

"-L/usr/lib"

"-L/usr/lib/"

"-L/usr/lib/x86_64-linux-gnu"

"-L/usr/lib/x86_64-linux-gnu/"

"-L/usr/lib/i386-linux-gnu"

"-L/usr/lib/i386-linux-gnu/")

string(REPLACE ";" " " MLPACK_LIBRARIES_STRING "${MLPACK_LIBRARIES_LIST}")

# Do first stage of configuration.

set(MLPACK_VERSION_STRING "@MLPACK_VERSION_STRING@")

configure_file(

${CMAKE_CURRENT_SOURCE_DIR}/CMake/mlpack.pc.in

${CMAKE_BINARY_DIR}/CMake/mlpack.pc.in.partial @ONLY)

add_custom_target(pkgconfig ALL

${CMAKE_COMMAND}

-P "${CMAKE_CURRENT_SOURCE_DIR}/CMake/GeneratePkgConfig.cmake"

DEPENDS mlpack_headers

COMMENT "Generating mlpack.pc (pkg-config) file.")

# Do we need a different directory?

install(FILES ${CMAKE_CURRENT_BINARY_DIR}/lib/pkgconfig/mlpack.pc

DESTINATION lib/pkgconfig/)

endif ()