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# - FindMathGL2.cmake
# This module can be used to find MathGL v.2.* and several of its optional components.
#
# You can specify one or more component as you call this find module.
# Possible components are: FLTK, GLUT, Qt, WX.
#
# The following variables will be defined for your use:
#
# MATHGL2_FOUND = MathGL v.2 and all specified components found
# MATHGL2_INCLUDE_DIRS = The MathGL v.2 include directories
# MATHGL2_LIBRARIES = The libraries to link against to use MathGL v.2
# and all specified components
# MATHGL2_VERSION_STRING = A human-readable version of the MathGL v.2 (e.g. 2.1)
# MATHGL2_XXX_FOUND = Component XXX found (replace XXX with uppercased
# component name -- for example, QT or FLTK)
#
# The minimum required version and needed components can be specified using
# the standard find_package()-syntax, here are some examples:
# find_package(MathGL2 REQUIRED) - v.2.* (no interfaces), required
# find_package(MathGL2 REQUIRED Qt) - v.2.1 + Qt interface, required
# find_package(MathGL2 2.1 REQUIRED) - v.2.1 (no interfaces), required
# find_package(MathGL2 COMPONENTS Qt WX) - v.2.0 + Qt and WX interfaces, optional
#
# Note, some cmake builds require to write "COMPONENTS" always, like
# find_package(MathGL2 REQUIRED COMPONENTS Qt) - v.2.* + Qt interface, required
#
# Typical usage could be something like this:
# find_package(MathGL REQUIRED FLTK)
# include_directories(${MATHGL2_INCLUDE_DIRS})
# add_executable(myexe main.cpp)
# target_link_libraries(myexe ${MATHGL2_LIBRARIES} ${MATHGL2_FLTK_LIBRARIES})
#
#=============================================================================
# Copyright (c) 2011 Denis Pesotsky <denis@kde.ru>, 2014 Alexey Balakin <mathgl.abalakin@gmail.com>
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file COPYING-CMAKE-MODULES 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.
#=============================================================================
FIND_PATH(MATHGL2_INCLUDE_DIR
NAMES mgl2/mgl.h
DOC "The MathGL2 v.2.* include directory")
FIND_LIBRARY(MATHGL2_LIBRARY
NAMES mgl
PATHS ${MATHGL2_LIBRARY_DIR}
DOC "The MathGL v.2.* include directory")
GET_FILENAME_COMPONENT(MATHGL2_LIBRARY_DIR ${MATHGL2_LIBRARY} PATH)
SET(MATHGL2_LIBRARIES ${MATHGL2_LIBRARY})
SET(MATHGL2_INCLUDE_DIRS ${MATHGL2_INCLUDE_DIR})
IF(MATHGL2_INCLUDE_DIR)
SET(_CONFIG_FILE_PATH "${MATHGL2_INCLUDE_DIR}/mgl2/define.h")
SET(_VERSION_ERR "Cannot determine MathGL v.2.* version")
IF(EXISTS "${_CONFIG_FILE_PATH}")
FILE(STRINGS "${_CONFIG_FILE_PATH}"
MATHGL2_VERSION_STRING REGEX "^#define MGL_VER2.*$")
IF(MATHGL2_VERSION_STRING)
STRING(REGEX
REPLACE "#define MGL_VER2" ""
MATHGL2_VERSION_STRING ${MATHGL2_VERSION_STRING})
STRING(REGEX
REPLACE "//.*" ""
MATHGL2_VERSION_STRING ${MATHGL2_VERSION_STRING})
STRING(STRIP ${MATHGL2_VERSION_STRING} MATHGL2_VERSION_STRING)
SET(MATHGL2_VERSION_STRING 2.${MATHGL2_VERSION_STRING})
# MESSAGE(STATUS "Find MathGL version -- ${MATHGL2_VERSION_STRING}")
ELSE()
SET(_ERR_MESSAGE "${_VERSION_ERR}: ${_CONFIG_FILE_PATH} parse error")
ENDIF()
ELSE()
SET(_ERR_MESSAGE "${_VERSION_ERR}: ${_CONFIG_FILE_PATH} not found")
ENDIF()
IF(_ERR_MESSAGE)
UNSET(_ERR_MESSAGE)
SET(_CONFIG_FILE_PATH "${MATHGL2_INCLUDE_DIR}/mgl2/config.h")
SET(_VERSION_ERR "Cannot determine MathGL v.2.* version")
IF(EXISTS "${_CONFIG_FILE_PATH}")
FILE(STRINGS "${_CONFIG_FILE_PATH}"
MATHGL2_VERSION_STRING REGEX "^#define MGL_VER2.*$")
IF(MATHGL2_VERSION_STRING)
STRING(REGEX
REPLACE "#define MGL_VER2" ""
MATHGL2_VERSION_STRING ${MATHGL2_VERSION_STRING})
STRING(REGEX
REPLACE "//.*" ""
MATHGL2_VERSION_STRING ${MATHGL2_VERSION_STRING})
STRING(STRIP ${MATHGL2_VERSION_STRING} MATHGL2_VERSION_STRING)
SET(MATHGL2_VERSION_STRING 2.${MATHGL2_VERSION_STRING})
# MESSAGE(STATUS "Find MathGL version -- ${MATHGL2_VERSION_STRING}")
ELSE()
SET(_ERR_MESSAGE "${_VERSION_ERR}: ${_CONFIG_FILE_PATH} parse error")
ENDIF()
ELSE()
SET(_ERR_MESSAGE "${_VERSION_ERR}: ${_CONFIG_FILE_PATH} not found")
ENDIF()
ENDIF(_ERR_MESSAGE)
if(_ERR_MESSAGE)
MESSAGE(FATAL_ERROR ${_ERR_MESSAGE})
endif(_ERR_MESSAGE)
ENDIF()
INCLUDE(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(MathGL2
REQUIRED_VARS MATHGL2_LIBRARY MATHGL2_INCLUDE_DIR
VERSION_VAR MATHGL2_VERSION_STRING)
FOREACH(_Component ${MathGL2_FIND_COMPONENTS})
STRING(TOLOWER ${_Component} _component)
STRING(TOUPPER ${_Component} _COMPONENT)
SET(MATHGL2_${_Component}_FIND_REQUIRED ${MATHGL2_FIND_REQUIRED})
SET(MATHGL2_${_Component}_FIND_QUIETLY true)
if(${_component} STREQUAL "qt4" OR ${_component} STREQUAL "qt5")
FIND_PATH(MATHGL2_${_COMPONENT}_INCLUDE_DIR
NAMES mgl2/qt.h
PATHS ${MATHGL2_INCLUDE_DIR} NO_DEFAULT_PATH)
else(${_component} STREQUAL "qt4" OR ${_component} STREQUAL "qt5")
FIND_PATH(MATHGL2_${_COMPONENT}_INCLUDE_DIR
NAMES mgl2/${_component}.h
PATHS ${MATHGL2_INCLUDE_DIR} NO_DEFAULT_PATH)
endif(${_component} STREQUAL "qt4" OR ${_component} STREQUAL "qt5")
FIND_LIBRARY(MATHGL2_${_COMPONENT}_LIBRARY
NAMES mgl-${_component}
PATHS ${MATHGL2_LIBRARY_DIR} NO_DEFAULT_PATH)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(MATHGL2_${_Component} DEFAULT_MSG
MATHGL2_${_COMPONENT}_LIBRARY
MATHGL2_${_COMPONENT}_INCLUDE_DIR)
IF(MATHGL2_${_COMPONENT}_FOUND)
SET(MATHGL2_LIBRARIES
${MATHGL2_LIBRARIES} ${MATHGL2_${_COMPONENT}_LIBRARY})
SET(MATHGL2_INCLUDE_DIRS
${MATHGL2_INCLUDE_DIRS} ${MATHGL2_${_COMPONENT}_INCLUDE_DIR})
ENDIF()
MARK_AS_ADVANCED(MATHGL2_${_COMPONENT}_INCLUDE_DIR MATHGL2_${_COMPONENT}_LIBRARY)
ENDFOREACH()
MARK_AS_ADVANCED(MATHGL2_INCLUDE_DIR MATHGL2_LIBRARY MATHGL2_VERSION_STRING)
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