mirror of https://github.com/CGAL/cgal
110 lines
3.0 KiB
CMake
110 lines
3.0 KiB
CMake
# NTL needs GMP 3.1.1 or newer, this script will fail if an old version is
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# detected
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find_package( GMP REQUIRED )
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if( NOT GMP_FOUND )
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message( ERROR "NTL requires GMP" )
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set( NTL_FOUND FALSE )
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else( NOT GMP_FOUND )
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include( CGAL_VersionUtils )
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IS_VERSION_LESS("${GMP_VERSION}" "3.1.1" _IS_GMP_VERSION_TOO_LOW)
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if( _IS_GMP_VERSION_TOO_LOW )
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message( ERROR, "NTL needs GMP>=3.1.1. Your GMP version is ${GMP_VERSION}." )
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else( _IS_GMP_VERSION_TOO_LOW )
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find_path(NTL_INCLUDE_DIR
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NAMES NTL/ZZX.h
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PATHS ENV NTL_INC_DIR
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DOC "The directory containing the NTL include files"
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NO_DEFAULT_PATH
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)
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find_library(NTL_LIBRARY
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NAMES ntl
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PATHS ENV NTL_LIB_DIR
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DOC "Path to the NTL library"
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NO_DEFAULT_PATH
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)
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# TODO if NTL_INC_DIR is given you should not search in default path
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# find_library(NTL_LIBRARY
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# NAMES ntl
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# PATHS ENV NTL_LIB_DIR
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# DOC "Path to the NTL library"
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# )
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# message( STATUS "NTL_INCLUDE_DIR = '${NTL_INCLUDE_DIR}'" )
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# message( STATUS "NTL_LIBRARY = '${NTL_LIBRARY}'" )
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if ( NTL_INCLUDE_DIR AND NTL_LIBRARY )
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#check version
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set( NTL_VERSION_H "${NTL_INCLUDE_DIR}/NTL/version.h" )
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if ( EXISTS ${NTL_VERSION_H} )
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file( READ "${NTL_VERSION_H}" NTL_VERSION_H_CONTENTS )
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string( REGEX MATCH "[0-9]+\\.[0-9]+\\.[0-9]+" CGAL_NTL_VERSION "${NTL_VERSION_H_CONTENTS}" )
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#message( STATUS "DETECTED NTL_VERSION = '${CGAL_NTL_VERSION}'" )
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IS_VERSION_GREATER( "${CGAL_NTL_VERSION}" "5.0.0" _IS_NTL_VERSION_GREATER )
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if ( _IS_NTL_VERSION_GREATER )
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set( NTL_FOUND TRUE )
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else ( _IS_NTL_VERSION_GREATER )
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set( NTL_FOUND FALSE )
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endif ( _IS_NTL_VERSION_GREATER )
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endif (EXISTS ${NTL_VERSION_H} )
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endif ( NTL_INCLUDE_DIR AND NTL_LIBRARY )
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if ( NTL_FOUND )
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#message( STATUS "Found NTL in version '${CGAL_NTL_VERSION}'" )
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set ( NTL_INCLUDE_DIRS ${NTL_INCLUDE_DIR} )
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set ( NTL_LIBRARIES ${NTL_LIBRARY} )
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get_filename_component(NTL_LIBRARIES_DIR ${NTL_LIBRARIES} PATH CACHE )
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include(CGAL_FindPackageHandleStandardArgs)
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find_package_handle_standard_args( NTL
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DEFAULT_MSG
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NTL_LIBRARY
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NTL_INCLUDE_DIR )
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mark_as_advanced( NTL_INCLUDE_DIR NTL_LIBRARY )
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# TODO add flag to CGAL Polynomials
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endif( NTL_FOUND )
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endif( _IS_GMP_VERSION_TOO_LOW )
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endif( NOT GMP_FOUND )
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if ( NTL_FOUND )
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# if ( NOT NTL_FIND_QUIETLY )
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# message(STATUS "Found NTL: ${NTL_LIBRARY}")
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# endif (NOT NTL_FIND_QUIETLY )
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else ( NTL_FOUND )
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if ( NTL_FIND_REQUIRED )
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message( FATAL_ERROR "Could not find NTL" )
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endif ( NTL_FIND_REQUIRED )
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endif ( NTL_FOUND )
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