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Re: Cygwin cygdrive prefix

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December 4, 2015 20:02
Re: Cygwin cygdrive prefix
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Achim Gratz wrote:
> Tony Cook writes:
>>    1.15          cygwin build issue, test failure
> Sorry to piggy-back on here, but I didn't find where this was discussed
> on the list (if it was).
>  From the date of the commit I assume that 636efde is (at least in part)
> what's meant here.  I suggest that the fix should be cherry-picked to
> the 5.22.1 branch.
> To the fix itself, using df will eventually fail on some systems even
> with the "-a" switch since you can't assume that a C: drive exists.  A
> more appropriate way to obtain the cygdrive prefix is to use
> readlink "/proc/cygdrive"
> or `readlink -f /proc/cygdrive` or maybe even `cygpath -u C:` (the
> latter works even if the drive in question doesn't exist and presumably
> does so even on older versions of Cygwin that didn't have the /proc
> pseudo-fs).

Shellling out is evil perf wise, cyg perl really needs to learn how to 
use cyg specific XS or C funcs.

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