Re: Undefined symbols insanity after upgrading to Xcode 2.1...
Re: Undefined symbols insanity after upgrading to Xcode 2.1...
- Subject: Re: Undefined symbols insanity after upgrading to Xcode 2.1...
- From: Dave Thorup <email@hidden>
- Date: Tue, 26 Jul 2005 10:40:16 -0400
On Jul 25, 2005, at 4:29 PM, Dave Thorup wrote:
OK, I've just upgraded all of our library projects to Xcode 2.1 and
now I'm trying to get an application that uses those libraries to
run. The problem is that now I'm running into undefined symbols
and I can't figure out why. I'm using Xcode 2.1 and building with
GCC 3.3 for everything. The following symbols for three methods
are undefined:
__ZThn4_N17CStratoFilterBase12StratoNotifyEPK17IStratoDataSourcelPv
__ZThn4_N17CStratoFilterBase21StratoAddedDataSourceEPK17IStratoDataSou
rce
__ZThn4_N17CStratoFilterBase23StratoRemovedDataSourceEPK17IStratoDataS
ource
Well, I at least found a workaround. The only thing I changed when I
upgraded our projects to Xcode 2.1 was some of the optimization
settings. It seems that the culprit was changing the optimization
level from -Os (fastest, smallest) to -O3 (fastest). But why would
that effect which symbols are exported?
Anyway, at least I can build and run the application now without any
link errors. And it seems to be working correctly.
_____________________________
Dave Thorup
Software Engineer
email@hidden
http://www.kuwan.net
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