On Mon, Dec 12, 2016 at 2:31 PM, John Chludzinski <
john.chludzin...@gmail.com> wrote:
> On the Bourne shell I can use:
>
> sh-4.1$ gcc `pkg-config gtk+-2.0 --cflags` `pkg-config gtk+-2.0 --libs`
> dbuscomm.c
>
>
> When I try (in Fish):
>
> > gcc (pkg-config gtk+-2.0 --cflags) (pkg-config gtk+-2.0 --libs)
> dbuscomm.c
>
> I get a whole bunch of bogus compile errors.
>
> Why?
>
It's because POSIX shells like bash split the subcommand output on
whitespace while fish only splits on newlines. Since `pkg-config gtk+-2.0
--cflags` produces a single line of output fish passes that as a single
argument (i.e., a single string) to gcc which is understandably confused.
See https://github.com/fish-shell/fish-shell/issues/1947 and
https://github.com/fish-shell/fish-shell/issues/2568 and
http://stackoverflow.com/questions/28128669/fish-command-substitution-doesnt-work-like-in-bash-or-zsh/28129450#28129450
However, rather than using `tr` as suggested in that SO thread I would
recommend using the `string split` builtin.
--
Kurtis Rader
Caretaker of the exceptional canines Junior and Hank
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