Re: Where can $(inherited) be used?
Re: Where can $(inherited) be used?
- Subject: Re: Where can $(inherited) be used?
- From: Stonewall Ballard <email@hidden>
- Date: Mon, 25 Jan 2010 20:12:47 -0500
On Jan 25, 2010, at 6:19 PM, Sean McBride wrote:
> On 1/25/10 5:26 PM, Stonewall Ballard said:
>
>> I just refactored some .xcconfig files, and discovered that $(inherited)
>> works in some places but not in others. I didn't see any documentation
>> that even mentions $(inherited). I'd think it would be in the Xcode
>> Build System Guide, but it isn't.
>>
>> Experimentation showed that you can't use it in a
>> GCC_PREPROCESSOR_DEFINITIONS setting. That seems like one of the best
>> places to use it. A work-around is to set a user-defined symbol, say
>> COMMON_PREPROCESSOR_DEFINITIONS to the definitions used everywhere, then
>> put $(COMMON_PREPROCESSOR_DEFINITIONS) on the downstream definitions.
>>
>> Should $(inherited) have worked for defines? Is there any doc on where
>> it's valid?
>
> Do your .xcconfig files #include other .xcconfig files? If so, you may
> be expecting $(inherited) to do something that it cannot, namely to
> accumulate settings from previous #includes.
They do, but even if I set
GCC_PREPROCESSOR_DEFINITIONS = $(inherited) FOOBAR
in my project's build info window, no GCC_PREPROCESSOR_DEFINITIONS from the .xcconfig file on which it's based shows up. The documentation shows the .xcconfig files as being a normal part of the search order for definitions, and doesn't say there's anything special about them, so I'd expect this to work.
- Stoney
--
Stonewall Ballard
email@hidden http://stoney.sb.org/
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