Weak link
Weak link
- Subject: Weak link
- From: "Chen Wang" <email@hidden>
- Date: Tue, 23 Oct 2007 16:45:52 -0400
- Thread-topic: Weak link
Dear
list,
I'm wondering how
you guys work with "weak link" readily in XCode? I
recently did a test in XCode 2.4.1, my Cocoa project is targeted to 10.2,
therefore GetEventMonitorTarget() is not available because this API
was introduced since 10.3. So, I tried weak link as suggested by
Apple's document ( XCode > Framework Programming Guide > Freameworks and
Weak Linking ), but I always received "Undefined symbols:
_GetEventMonitorTarget" error from XCode. Did I miss something that is basic but
critical? Here is my code in short:
extern
EventTargetRef GetEventMonitorTarget( void )
__attribute__((weak_import));
...
if ( GetEventMonitorTarget != NULL
)
{
EventTargetRef refFoo =
GetEventMonitorTarget( );
}
...
And
[MACOSX_DEPLOYMENT_TARGET] was already set to Mac OS X 10.2 in
XCode.
Thank you in advance
for your kindly help.
Chen
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