# - this module looks for Matlab
# Defines:
#  MATLAB_INCLUDE_DIR: include path for mex.h, engine.h
#  MATLAB_LIBRARIES:   required libraries: libmex, etc
#  MATLAB_MEX_LIBRARY: path to libmex.lib
#  MATLAB_MX_LIBRARY:  path to libmx.lib
#  MATLAB_MAT_LIBRARY:  path to libmat.lib # added
#  MATLAB_ENG_LIBRARY: path to libeng.lib
#  MATLAB_ROOT: path to Matlab's root directory

# This file is part of Gerardus
#
# This is a derivative work of file FindMatlab.cmake released with
# CMake v2.8, because the original seems to be a bit outdated and
# doesn't work with my Windows XP and Visual Studio 10 install
#
# (Note that the original file does work for Ubuntu Natty)
#
# Author: Ramon Casero <rcasero@gmail.com>, Tom Doel
# Version: 0.2.3
# $Rev$
# $Date$
#
# The original file was copied from an Ubuntu Linux install
# /usr/share/cmake-2.8/Modules/FindMatlab.cmake

#=============================================================================
# Copyright 2005-2009 Kitware, Inc.
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distribute this file outside of CMake, substitute the full
#  License text for the above reference.)

SET(MATLAB_FOUND 0)
IF(WIN32)
  # Search for a version of Matlab available, starting from the most modern one to older versions
  FOREACH(MATVER "7.14" "7.11" "7.17" "7.10" "7.9" "7.8" "7.7" "7.6" "7.5" "7.4" "8.0" "8.1" "8.2" "8.3" "8.4" "8.5")
    IF((NOT DEFINED MATLAB_ROOT)
        OR ("${MATLAB_ROOT}" STREQUAL "")
        OR ("${MATLAB_ROOT}" STREQUAL "/registry"))
      GET_FILENAME_COMPONENT(MATLAB_ROOT
        "[HKEY_LOCAL_MACHINE\\SOFTWARE\\MathWorks\\MATLAB\\${MATVER};MATLABROOT]"
        ABSOLUTE)
      SET(MATLAB_VERSION ${MATVER})
    ENDIF((NOT DEFINED MATLAB_ROOT)
      OR ("${MATLAB_ROOT}" STREQUAL "")
      OR ("${MATLAB_ROOT}" STREQUAL "/registry"))
  ENDFOREACH(MATVER)

  # Directory name depending on whether the Windows architecture is 32
  # bit or 64 bit
  set(CMAKE_SIZEOF_VOID_P 8) # Note: For some weird reason this variable is undefined in my system...
  IF(CMAKE_SIZEOF_VOID_P MATCHES "4")
    SET(WINDIR "win32")
  ELSEIF(CMAKE_SIZEOF_VOID_P MATCHES "8")
    SET(WINDIR "win64")
  ELSE(CMAKE_SIZEOF_VOID_P MATCHES "4")
    MESSAGE(FATAL_ERROR
      "CMAKE_SIZEOF_VOID_P (${CMAKE_SIZEOF_VOID_P}) doesn't indicate a valid platform")
  ENDIF(CMAKE_SIZEOF_VOID_P MATCHES "4")

  # Folder where the MEX libraries are, depending of the Windows compiler
  IF(${CMAKE_GENERATOR} MATCHES "Visual Studio 6")
    SET(MATLAB_LIBRARIES_DIR "${MATLAB_ROOT}/extern/lib/${WINDIR}/microsoft/msvc60")
  ELSEIF(${CMAKE_GENERATOR} MATCHES "Visual Studio 7")
    # Assume people are generally using Visual Studio 7.1,
    # if using 7.0 need to link to: ../extern/lib/${WINDIR}/microsoft/msvc70
    SET(MATLAB_LIBRARIES_DIR "${MATLAB_ROOT}/extern/lib/${WINDIR}/microsoft/msvc71")
    # SET(MATLAB_LIBRARIES_DIR "${MATLAB_ROOT}/extern/lib/${WINDIR}/microsoft/msvc70")
  ELSEIF(${CMAKE_GENERATOR} MATCHES "Borland")
    # Assume people are generally using Borland 5.4,
    # if using 7.0 need to link to: ../extern/lib/${WINDIR}/microsoft/msvc70
    SET(MATLAB_LIBRARIES_DIR "${MATLAB_ROOT}/extern/lib/${WINDIR}/microsoft/bcc54")
    # SET(MATLAB_LIBRARIES_DIR "${MATLAB_ROOT}/extern/lib/${WINDIR}/microsoft/bcc50")
    # SET(MATLAB_LIBRARIES_DIR "${MATLAB_ROOT}/extern/lib/${WINDIR}/microsoft/bcc51")
  ELSEIF(${CMAKE_GENERATOR} MATCHES "Visual Studio*")
    # If the compiler is Visual Studio, but not any of the specific
    # versions above, we try our luck with the microsoft directory
    SET(MATLAB_LIBRARIES_DIR "${MATLAB_ROOT}/extern/lib/${WINDIR}/microsoft/")
  ELSE(${CMAKE_GENERATOR} MATCHES "Visual Studio 6")
    MESSAGE(FATAL_ERROR "Generator not compatible: ${CMAKE_GENERATOR}")
  ENDIF(${CMAKE_GENERATOR} MATCHES "Visual Studio 6")

  # Get paths to the Matlab MEX libraries
  FIND_LIBRARY(MATLAB_MEX_LIBRARY
    libmex
    ${MATLAB_LIBRARIES_DIR}
    )
  FIND_LIBRARY(MATLAB_MX_LIBRARY
    libmx
    ${MATLAB_LIBRARIES_DIR}
    )
  FIND_LIBRARY(MATLAB_MAT_LIBRARY
    libmat
    ${MATLAB_LIBRARIES_DIR}
    )
  FIND_LIBRARY(MATLAB_ENG_LIBRARY
    libeng
    ${MATLAB_LIBRARIES_DIR}
    )

  # Get path to the include directory
  FIND_PATH(MATLAB_INCLUDE_DIR
    "mex.h"
    "${MATLAB_ROOT}/extern/include"
    )

ELSE(WIN32)

  IF((NOT DEFINED MATLAB_ROOT)
      OR ("${MATLAB_ROOT}" STREQUAL ""))
    # get path to the Matlab root directory
    EXECUTE_PROCESS(
      COMMAND which matlab
      COMMAND xargs readlink
      COMMAND xargs dirname
      COMMAND xargs dirname
      COMMAND xargs echo -n
      OUTPUT_VARIABLE MATLAB_ROOT
      )
  ENDIF((NOT DEFINED MATLAB_ROOT)
    OR ("${MATLAB_ROOT}" STREQUAL ""))

  # Check if this is a Mac
  IF(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")

    SET(LIBRARY_EXTENSION .dylib)

    # If this is a Mac and the attempts to find MATLAB_ROOT have so far failed,
    # we look in the applications folder
    IF((NOT DEFINED MATLAB_ROOT) OR ("${MATLAB_ROOT}" STREQUAL ""))

    # Search for a version of Matlab available, starting from the most modern one to older versions
      FOREACH(MATVER "R2016b" "R2016a" "R2015b" "R2015a" "R2014b" "R2014a" "R2014a" "R2013b" "R2013a" "R2012b" "R2012a" "R2011b" "R2011a" "R2010b" "R2010a" "R2009b" "R2009a" "R2008b")
        IF((NOT DEFINED MATLAB_ROOT) OR ("${MATLAB_ROOT}" STREQUAL ""))
          IF(EXISTS /Applications/MATLAB_${MATVER}.app)
            SET(MATLAB_ROOT /Applications/MATLAB_${MATVER}.app)

          ENDIF(EXISTS /Applications/MATLAB_${MATVER}.app)
        ENDIF((NOT DEFINED MATLAB_ROOT) OR ("${MATLAB_ROOT}" STREQUAL ""))
      ENDFOREACH(MATVER)

    ENDIF((NOT DEFINED MATLAB_ROOT) OR ("${MATLAB_ROOT}" STREQUAL ""))

  ELSE(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
    SET(LIBRARY_EXTENSION .so)

  ENDIF(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")

  # Get path to the MEX libraries
  EXECUTE_PROCESS(
    #COMMAND find "${MATLAB_ROOT}/extern/lib" -name libmex${LIBRARY_EXTENSION} # Peter
	COMMAND find "${MATLAB_ROOT}/bin" -name libmex${LIBRARY_EXTENSION} # Standard
    COMMAND xargs echo -n
    OUTPUT_VARIABLE MATLAB_MEX_LIBRARY
    )
  EXECUTE_PROCESS(
    #COMMAND find "${MATLAB_ROOT}/extern/lib" -name libmx${LIBRARY_EXTENSION} # Peter
	COMMAND find "${MATLAB_ROOT}/bin" -name libmx${LIBRARY_EXTENSION} # Standard
    COMMAND xargs echo -n
    OUTPUT_VARIABLE MATLAB_MX_LIBRARY
    )
  EXECUTE_PROCESS(
    #COMMAND find "${MATLAB_ROOT}/extern/lib" -name libmat${LIBRARY_EXTENSION} # Peter
	COMMAND find "${MATLAB_ROOT}/bin" -name libmat${LIBRARY_EXTENSION} # Standard
    COMMAND xargs echo -n
    OUTPUT_VARIABLE MATLAB_MAT_LIBRARY
    )
  EXECUTE_PROCESS(
    #COMMAND find "${MATLAB_ROOT}/extern/lib" -name libeng${LIBRARY_EXTENSION} # Peter
	COMMAND find "${MATLAB_ROOT}/bin" -name libeng${LIBRARY_EXTENSION} # Standard
    COMMAND xargs echo -n
    OUTPUT_VARIABLE MATLAB_ENG_LIBRARY
    )

  # Get path to the include directory
  FIND_PATH(MATLAB_INCLUDE_DIR
    "mex.h"
    PATHS "${MATLAB_ROOT}/extern/include"
    )

ENDIF(WIN32)

if (${CMAKE_CXX_COMPILER_ID} STREQUAL "GNU")
  set(MATLAB_LIBSTDCPP "-lstdc++")
endif ()


# This is common to UNIX and Win32:
SET(MATLAB_LIBRARIES
  ${MATLAB_LIBSTDCPP}
  ${MATLAB_MAT_LIBRARY}
  ${MATLAB_MEX_LIBRARY}
  ${MATLAB_MX_LIBRARY}
  ${MATLAB_ENG_LIBRARY}
)

IF(MATLAB_INCLUDE_DIR AND MATLAB_LIBRARIES)
  SET(MATLAB_FOUND 1)
ENDIF(MATLAB_INCLUDE_DIR AND MATLAB_LIBRARIES)

MARK_AS_ADVANCED(
  MATLAB_LIBRARIES
  MATLAB_MEX_LIBRARY
  MATLAB_MX_LIBRARY
  MATLAB_ENG_LIBRARY
  MATLAB_INCLUDE_DIR
  MATLAB_FOUND
  MATLAB_ROOT
)
