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