103 lines
2.8 KiB
CMake
103 lines
2.8 KiB
CMake
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# 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( (TARGET CGAL AND NOT WITH_GMP) OR NOT GMP_FOUND )
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message( FATAL_ERROR "NTL requires GMP" )
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set( NTL_FOUND FALSE )
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else( (TARGET CGAL AND NOT WITH_GMP) OR NOT GMP_FOUND )
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include( ${CMAKE_CURRENT_LIST_DIR}/CGAL_VersionUtils.cmake )
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get_dependency_version( GMP )
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IS_VERSION_LESS("${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( FATAL_ERROR, "NTL needs GMP>=3.1.1. Your GMP version is ${GMP_VERSION}." )
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else( _IS_GMP_VERSION_TOO_LOW )
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find_path(NTL_INCLUDE_DIR
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NAMES NTL/ZZ.h
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HINTS ENV NTL_INC_DIR
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ENV NTL_DIR
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PATH_SUFFIXES include
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DOC "The directory containing the NTL include files"
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)
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find_library(NTL_LIBRARY
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NAMES ntl
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HINTS ENV NTL_LIB_DIR
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ENV NTL_DIR
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PATH_SUFFIXES lib
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DOC "Path to the NTL library"
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)
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if ( NTL_INCLUDE_DIR AND NTL_LIBRARY )
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#check version
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set( NTL_VERSION_H "${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]+)+" 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(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( (TARGET CGAL AND NOT WITH_GMP) OR 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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