Am Mo, Mär 24, 2025 am 06:38:56 +0000 schrieb Laurent Bercot:
>>The issues seem to be that ./configure is setting IFS=' ' without
>>unsetting the value again. This means tabs in CFLAGS also break
>>./configure. And the variables aren't escaped for config.mk.
>
> ... oh. I sent my reply before seeing yours.
>
> This is interesting. But then why does
>
>CFLAGS="-O2
> -pipe"
>./configure
>
>work? I would expect it to fail if IFS was the issue.
It does not. You forgot to export CFLAGS.
>
>
>>+ IFS=' ' read -r k v ldlibs
>
> bash construct ;)
>
>
>>+CFLAGS := $CFLAGS ${CFLAGS_POST//'
>>+'/'\
>>+'}
>
> I am unfamiliar with this, can you please explain it?
${VAR//pattern/replacement} replaces every pattern in VAR by replacement. Here
it adds a backslash before every newline.
If I trust
https://steinbaugh.com/posts/posix.html#replacement, this is
POSIX-compliant.
Hoël
Received on Mon Mar 24 2025 - 19:53:04 CET