[Bug 817187] Re: change in readlink() errno in 2.6.39 and later kernels causes FTBFS for packages with older gnulib

[Andy Whitcroft]

A quick review of other syscalls reacting to "" as a pathname tend to
now place readlink as an inconsistant outsider:

  open("", O_RDONLY)                      = -1 ENOENT (No such file or directory)
  chmod("", 0777)                         = -1 ENOENT (No such file or directory)
  readlink("", 0x7fff794533c0, 2048)      = -1 EINVAL (Invalid argument)
  stat("", 0x7fff79453330)                = -1 ENOENT (No such file or directory)
  rename("", "")                          = -1 ENOENT (No such file or directory)
  unlink("")                              = -1 ENOENT (No such file or directory)

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https://bugs.launchpad.net/bugs/817187

Title:
  change in readlink() errno in 2.6.39 and later kernels causes FTBFS
  for packages with older gnulib

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