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From: Alex Dowad <alexinbeijing@gmail.com>
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Subject: Re: [PATCH] Build process uses script to add CFI directives to x86
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Date: Tue, 19 May 2015 18:22:24 +0200
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> configure already uses its own echo definition

> so ash's echo should not be used

> how did the config script end up calling ash's echo?

OK, thanks for pointing this out. I shouldn't have said that the problem was
with ash's echo.

The original configure script worked when I ran it on Linux Mint + bash, and didn't
work on Alpine Linux + BusyBox ash. I didn't notice echo() in the configure script,
did some experimentation with bash's echo and ash's, found a difference which seemed
to explain the observed problem, and worked around it.

Now it looks like the issue was something else. I can't seem to duplicate the problem
right this moment; however, the configure script as it is right now works on both
platforms.

Mysteries, mysteries...

AD