On 30/03/2010, at 8:32 PM, simon Scylla wrote:

> i need to port some code to iphone and now i find that i can not call system
> interface of objc. i can rename my files from 888.c  to ***.m and it works.
> but i do not wanna rename my files.
> what should i do?i think there must be some choice in xcode.but i don't
> konw......[?]


You can go into the project build settings and under GCC 4.2 Language section, 
select 'Objective-C' under 'Compile Sources As' instead of 'According to File 
Type'.

--Graham


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