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Re: linux-ppc harfbuzz GUB build error

From: Masamichi Hosoda
Subject: Re: linux-ppc harfbuzz GUB build error
Date: Thu, 22 Dec 2016 22:05:23 +0900 (JST)

>>>> In my environments, autoconf does not raise such error.
>>>> Do you set the "set -u" or "set -o nounset" somewhere?
>>>> If so, would you remove the setting?
>>> The set -u (or to be complete set -ux) I discovered inside
>>> /home/gub/gub/target/freebsd-x86/src/
>>> which was the command that was called when the error was signalled
>> I've noticed that has "set -ux" and it is invoked from GUB.
>> If I understand correctly, "set -u" and "set -x" etc. do not carry over
>> into child processes.
>> However, at least in your log file,
>> "set -x" seems to be carried over to the child process.
>> From through to autoconf,
>> all scripts are setted trace mode.
> [...snip...]
>> Perhaps, also "set -u" is carried over in your environment
>> and it is not carried over in my environment.
>> I have no idea.
>> But, in CentOS, /bin/sh is symbolic link to bash,
>> whereas in Ubuntu, /bin/sh is dash.
>> I think that this difference is influenced.
> Anyway, I've noticed that if the environment variable SHELLOPTS exists,
> "set -ux" and "set -e" carry over to the child processes.
> There may be other conditions that it carries over.
> In order to avoid this issue,
> there is a way to "set +ux" before invoking the child process.
> So I've created a patch for LilyPond's and 

It has been merged.
Probably the issue on CentOS has been solved.

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