Bug#754816: libewf: FTBFS on hurd-386

[Svante Signell]

Source: libewf
Version: 20130416-3
Severity: important
Tags: patch
User: debian-hurd at lists.debian.org
Usertags: hurd

Hello,

libewf fails to build from source due to usage of PATH_MAX, which is not
defined on GNU/Hurd. The attached patch fixes usage of PATH_MAX as
second argument to getcwd() by using calls to getcwd (NULL, 0) instead.
Supporting (NULL, 0) as arguments is an extension to POSIX.1-2001 for
libc4, libc5 and glibc, so most modern systems have it. In order to
simplify the patch, only this version is implemented.

In case there is a need for a dual code path this can be fixed too, at
the cost of additional #ifdef's in the code and a configure.ac check for
the getcwd (NULL, 0) functionality.

libewf is flagged as out-of-date since a long time by now for Hurd and
with the PATH_MAX fix of libbfio in bug #754792 and this patch it will
be up-to-date again.

Thanks! 

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