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[MANTA] Re: [Manta/AFR] Camera paths added. (Can't find errno?)


Chronological Thread 
  • From: James Bigler <bigler@sci.utah.edu>
  • To: "Steven G. Parker" <sparker@cs.utah.edu>
  • Cc: Abe Stephens <abe@sci.utah.edu>, manta-afr@sci.utah.edu, "'manta@sci.utah.edu'" <manta@sci.utah.edu>
  • Subject: [MANTA] Re: [Manta/AFR] Camera paths added. (Can't find errno?)
  • Date: Wed, 12 Oct 2005 15:14:46 -0600
I just saw this in CamerPathAutomator.cc. You should include errno.h and not extern it.

James

Steven G. Parker wrote:
I suspect that errno is not a simple integer. Make sure you don't have a declaration like:
extern int errno;
which would trigger the message below.

Steve


On Oct 12, 2005, at 2:48 PM, Abe Stephens wrote:


Abhinav Dayal wrote:


/home/abhinav/Manta-AFR/linux/lib/libManta_UserInterface.so:  undefined
reference to `errno'
collect2: ld returned 1 exit status
make[2]: *** [bin/afr] Error 1
make[2]: Leaving directory `/home/abhinav/Manta-AFR/linux'
make[1]: *** [StandAlone/CMakeFiles/afr.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....



I think that the Intel compiler automatically includes "errno" in the standard library.

Does anyone know how to link to something that defines errno on gcc/ opteron??

Abe






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