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Re: AS_ECHO calls finding their way into calls
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From: |
Eric Blake |
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Subject: |
Re: AS_ECHO calls finding their way into calls |
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Date: |
Mon, 15 Sep 2008 05:17:50 -0600 |
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User-agent: |
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.16) Gecko/20080708 Thunderbird/2.0.0.16 Mnenhy/0.7.5.666 |
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According to BJ Terry on 9/15/2008 12:28 AM:
>
> AC_INIT
>
> AC_ERLANG_CHECK_LIB(erl_interface)
I'm not as familiar with Erlang, so it very well could be that you've
discovered a bug in autoconf.
>
> Now, I did note that his has $as_echo wherever mine had just echo, and I
> don't know why that is, and don't know why google couldn't provide any
> useful links on the matter.
Because the use of 'echo' is not always portable, so newer autoconf
guarantees a safe fallback (such as printf) in case it has detected that
your shell's echo does not fit autoconf's needs.
> The real problem appears to be that his
> "ac_link" variable has AS_ECHO in it instead of echo, which seems like
> it would cause problems to me.
>
> For the record, I am using autoconf 2.60 and M4 version 1.4.5, and he is
> using autoconf 2.62 and M4 version 1.4.11. My platform is Mac OS X 10.5
> running fink versions of these tools and he is using Mac OS X 10.4
> running the darwinports version, if that makes any difference.
It looks like you are reporting a regression that occurred sometime
between 2.60 and 2.62. Could you please check whether 2.63 also has the
bug, so we can fix it?
- --
Don't work too hard, make some time for fun as well!
Eric Blake address@hidden
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