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Bootstrapping pkgsrc on Android, was: Can anybody come with a creative solution to the "/bin/sh: bad interpreter" problem?





On Thursday, 26 January 2017, Ottavio Caruso <ottavio2006-netbsd%yahoo.com@localhost> wrote:
Hi all,

I've been away from pkgsrc and all things Netbsd for a while.

I've always toyed with the idea of bootstrapping pkgsrc on my Nexus 7 (Android 6.1) and I decided to give it a go.

Ive installed the excellent Termux app:
https://termux.com/

Installed a bunch of packages from the built in package manager apt, finally downloaded pkgsrc via CVS and then proceeded to bootstrap.

This is where problems start.

Most, if not all, pkgsrc scripta are simple shell scripts that start with the canonical shebang:
#! /bin/sh

The Android filesystem is a non standard Linux-like filesystem where most executables reside in /system/bin.

Termux adds a bunch of its own executables in 
/data/data/com.termux/files/usr/bin.

The /bin directory does not exist and cannot be created unless one roots the device, which I'm not willing to do yet. As a consequence one cannot create a link to /bin/sh.



OK, a little update.

I'm getting a partial positive result to the above mentioned problem.

What I have done is:

export CONFIG_SHELL=/data/data/com.termux/files/usr/bin/bash
export SH=/data/data/com.termux/files/usr/bin/bash
bash bootstrap --unprivileged

I'm not sure which one of the lines have done the job, probably $CONFIG_SHELL.

So, now configure starts and it fails at:

configure: creating cache config.cache
checking build system type... mkdir: cannot create directory '/tmp/cg8478-32379': No such file or directory
mkdir: cannot create directory '/tmp/cg-8478': No such file or directory
config.guess: cannot create a temporary directory in /tmp
configure: error: cannot guess build type; you must specify one
===> exited with status 1
aborted.

So, probably I'd have to create a variable pointing to a temp directory within my permissions.

Any help is appreciated.



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