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Paolo Bonzini wrote: | |> At a slight tangent; maybe m4sh could provide a shell function |> calling macro |> (off the top of my head): | | Isn't this a bit heavyweight?
I was just thinking out loud. The parameter saving code need only be emitted if the host shell test proves that functions can't cope without it.
|> | It should be even with an integer return value. If you are at the |> | end of a function (or in an if just before the end of the function, you |> | got it) it is possible to replace it with (exit NUM), but I don't see a |> | good reason to do so. |> |> Doesn't the exit actually terminate the script for (at least) some |> shells? | | No, it is in a subshell. Anyway it is among the shell function features | that m4sh now explicitly tests. It will complain at the start of the | script (telling to write to [EMAIL PROTECTED] even if shell functions are | not used, and also bailing out if they are). | |> BTW, we're thinking of moving the generation of ltmain.sh to m4sh when |> the |> shell function support in autoconf pans out...
Argh. So this is broken?
# func_fatal_error arg...
# Echo program name prefixed message to standard error, and exit.
func_fatal_error ()
{
~ func_error ${1+"$@"}
~ exit $EXIT_FAILURE
}How do you write a function that terminates? I guess I need to exit explicitly after every call to to func_fatal_error through the rest of the code, which then breaks this idiom:
feature=false case $arg in ~ -foo) feature=: ;; esac
...
$feature || func_fatal_error "barf"
:-(
I have been using this idiom successfully for years, and it is all over cvs-utils and libtool now. I'm very reluctant to let it go...
| It is already there. There is the detection system outlined above; | plus, a single macro is provided, AS_REQUIRE_SHELL_FN, which outputs the | function into the initialization section of the script. That's | basically all you need. Feel free to mail for help.
I've been watching the discussions on [EMAIL PROTECTED] :-)
After the next libtool release, I'll make a start.
Cheers,
Gary.
- --
Gary V. Vaughan ())_. [EMAIL PROTECTED],gnu.org}
Research Scientist ( '/ http://www.oranda.demon.co.uk
GNU Hacker / )= http://www.gnu.org/software/libtool
Technical Author `(_~)_ http://sources.redhat.com/autobook
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