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Re: Undefined symbol __error()
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Re: Undefined symbol __error()


  • Subject: Re: Undefined symbol __error()
  • From: Steve Checkoway <email@hidden>
  • Date: Mon, 16 Jan 2006 22:58:00 -0800


On Jan 16, 2006, at 4:07 PM, Justin C. Walker wrote:
Are you using 'errno' in an unusual way in your code (check your .o's to see which ones have __error() undefined)? Since it is a macro expanding to '__error()', if you use it as other than an "rval", you might have problems.

Just a side note, sys/errno.h has extern int * __error(void); #define errno (*__error())

Therefore, it is perfectly acceptable to use errno as an lvalue.

- Steve

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References: 
 >RE: Undefined symbol __error() (From: "David Litwin" <email@hidden>)
 >Re: Undefined symbol __error() (From: "Justin C. Walker" <email@hidden>)

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