On 20:57 Tue 05 Oct , Michał Górny wrote:
> # @FUNCTION: use_scons
> # @USAGE: <use-flag> [var-name] [var-opt-true] [var-opt-false]
> # @DESCRIPTION:
> # Output an SCons parameter with value depending on the USE flag state.
> # If the USE flag is set, output <var-name>=<var-opt-true>; otherwise
> # <var-name>=<var-opt-false>.
> #
> # If <var-name> is not set, <use-flag> will be used instead.
> # If <var-opt-true> or <var-opt-false> is unset, USE_SCONS_TRUE
> # or USE_SCONS_FALSE will be used instead.
> use_scons() {
> local flag=${1}
> local varname=${2:-${flag#!}}
Could you explain how this works to me, please? It seems like you're
reversing the logic when people use the !flag syntax.
> local vartrue=${3:-${USE_SCONS_TRUE}}
> local varfalse=${4:-${USE_SCONS_FALSE}}
--
Thanks,
Donnie
Donnie Berkholz
Sr. Developer, Gentoo Linux
Blog: http://dberkholz.wordpress.com
pgpmj3AYH1Q1S.pgp
Description: PGP signature
