Peter Hutterer wrote:
> This is too obvious so I must be missing something here. Why's the old code
> that awkward?
I can't explain ACLOCAL, but for ones like this, it's not exactly equivalent:
> # Set the path so that locally built apps will be found and used
> -if test x"$PATH" = x; then
> - PATH=${DESTDIR}${PREFIX}/bin
> -else
> - PATH=${DESTDIR}${PREFIX}/bin:${PATH}
> -fi
> +PATH=${DESTDIR}${PREFIX}/bin:${PATH}
> export PATH
>
> # Choose which make program to use
In many of the : separated environment variables, especially $PATH
& $LD_LIBRARY_PATH, any sequence that resolves to an empty string
after : splitting may be resolved as the current directory on many
platforms, so the simplified code you propose is actually equivalent to:
if test x"$PATH" = x; then
PATH=${DESTDIR}${PREFIX}/bin:.
else
PATH=${DESTDIR}${PREFIX}/bin:${PATH}
fi
i.e. appending the current directory to the path when it's unset.
(Though running with no $PATH seems unlikely, running with no
$LD_LIBRARY_PATH is far more common.)
--
-Alan Coopersmith- [email protected]
Oracle Solaris Platform Engineering: X Window System
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