Re: Bering-uClibc build files for Wireguard VPN server (rerouted to leaf-user and leaf-devel)

Erich,

This /dev/fd thing is a bit more nuanced than I thought. The configure
script for bash tests for its presence, and will try other ways of doing the
subprocess pipes if not (e.g using /proc/self/fd on Linux), but the test
runs for the system that the toolchain is hosted on, and there are no
specific --enable options that could influence this feature for the target
system. So inevitably a build of Bering-uClibc on more or less any modern
flavour of Linux will require /dev/fd to be present on the target to support
bash (and maybe other programs).

John

On 24/08/18 19:19, Erich Titl wrote:
> Hi John
> 
> Am 24.08.2018 um 12:11 schrieb John Sager:
>> Reading around the subject it seems that /dev/fd -> /proc/self/fd has been
>> around since at least Linux 2.6, and there should also be soft links for
>> /dev/stdin, /dev/stdout /dev/stderr:
>>
>> ln -s /dev/self/fd/0 /dev/stdin
>> ln -s /dev/self/fd/1 /dev/stdout
>> ln -s /dev/self/fd/2 /dev/stderr
>>
>> Perhaps these should also be added to the root.linuxrc script to avoid any
>> issues with code that depends on them.
> 
> Should not hurt, we could include this for the next release, which may
> have the new initrd.
> 
> cheers
> 
> ET
> 
> 
> 
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