Thread: Re: [PORTS] QNX4 port

Bruce Momjian wrote:


>> Bruce Momjian wrote:
>> >OK, my fix is to modify configure.in to lowercase $host before
>> >comparison.  Hopefully 'tr' works on QNX.
>>
>>
>> I havn't got the new sources yet, but this will definitly not work since
>> $host is already lower case ("i386-pc-qnx4").
>> The upper case "QNX" comes from "uname -s" as was stated below.
>>
>> uname -s | tr '[:upper:]' '[:lower:]'
>> returns "qnx" on QNX4.
>
>But configure.in has:
>
>        if test "$GUESS"
>        then TEMPLATE="$GUESS"
>        else
>            # Last chance ... maybe uname -s will match an entry.
>            TEMPLATE=`uname -s | tr A-Z a-z`
>        fi
>
>Why does this fail?


Above you stated "lowercase $host" but not "lowercase uname -s". $host is
"i386-pc-qnx4". Therefore it doesn't make sense to lowercase $host if you
want to get the string "qnx". Remember, I have not got the new source yet to
have a look at it. So I can comment only what you have written in the mail.

TEMPLATE=`uname -s | tr A-Z a-z`
will not work too because A-Z and a-z must be enclosed in square brackets on
QNX4. So you can use
TEMPLATE=`uname -s | tr [A-Z] [a-z]`
or
TEMPLATE=`uname -s | tr [:upper:] [:lower:]`

Andreas Kardos

PS: Don't forget "configure" itself.

> Above you stated "lowercase $host" but not "lowercase uname -s". $host is
> "i386-pc-qnx4". Therefore it doesn't make sense to lowercase $host if you
> want to get the string "qnx". Remember, I have not got the new source yet to
> have a look at it. So I can comment only what you have written in the mail.
>
> TEMPLATE=`uname -s | tr A-Z a-z`
> will not work too because A-Z and a-z must be enclosed in square brackets on
> QNX4. So you can use
> TEMPLATE=`uname -s | tr [A-Z] [a-z]`
> or
> TEMPLATE=`uname -s | tr [:upper:] [:lower:]`
>
> Andreas Kardos

Yes, you are right.  It turns out my change was meaningless.  The real
issue is that if no template is found, configure.in does:

        if test "$GUESS"
        then TEMPLATE="$GUESS"
        else
            # Last chance ... maybe uname -s will match an entry.
            TEMPLATE=`uname -s | tr A-Z a-z`
        fi

and tries to guess the platform this way.  My guess is that this would
catch qnx.

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