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808 dsic.upv.es!antodo 1 
import os
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import sys
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from check import *
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def checkArpack(conf,directory,libs,scalar,precision,uniprocessor):
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  if uniprocessor:
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    if scalar == 'real':
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      if precision == 'double':
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        functions = ['dnaupd','dneupd','dsaupd','dseupd']
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      else:
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        functions = ['snaupd','sneupd','dsaupd','dseupd']
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    else:
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      if precision == 'double':
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        functions = ['znaupd','zneupd']
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      else:
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        functions = ['cnaupd','cneupd']
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    if libs:
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      libs = [libs]
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    else:
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      libs = [['-larpack'],['-larpack_LINUX'],['-larpack_SUN4']]
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  else:
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    if scalar == 'real':
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      if precision == 'double':
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        functions = ['pdnaupd','pdneupd','pdsaupd','pdseupd']
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      else:
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        functions = ['psnaupd','psneupd','pdsaupd','pdseupd']
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    else:
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      if precision == 'double':
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        functions = ['pznaupd','pzneupd']
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      else:
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        functions = ['pcnaupd','pcneupd']
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    if libs:
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      libs = [libs]
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    else:
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      libs = [['-lparpack','-larpack'],['-lparpack_LINUX','-larpack_LINUX'],['-lparpack_SUN4','-larpack_SUN4']]
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  if directory:
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    dirs = [directory]
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  else:
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    dirs = generateGuesses('Arpack')
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  return checkFortranLib(conf,'ARPACK',dirs,libs,functions)