"Undefined symboles for architecture i386" on OS X using OF 0.8

[zeitkunst]

I'm not able to compile ofxTimeline on OS X using OF 0.8 as a result of a number of "undefined symbols" errors. This occurs either on the master or develop branches. I'm also compiling from the command-line...might this be causing the problems? It seems as if I just need to add some entries to my PROJECT_LDFLAGS, but I'm not sure which ones might help resolve these errors...

Thanks in advance for your help.

Undefined symbols for architecture i386:
  "ofGetModifierPressed(ofxModifierKey)", referenced from:
      ofxTimeline::keyPressed(ofKeyEventArgs&) in ofxTimeline.o
      ofxTLColorTrack::mouseReleased(ofMouseEventArgs&, long) in ofxTLColorTrack.o
      ofxTLCurves::mouseReleased(ofMouseEventArgs&, long) in ofxTLCurves.o
      ofxTLKeyframes::mousePressed(ofMouseEventArgs&, long) in ofxTLKeyframes.o
      ofxTLLFO::mouseReleased(ofMouseEventArgs&, long) in ofxTLLFO.o
      ofxTLPage::mousePressed(ofMouseEventArgs&, long) in ofxTLPage.o
  "ofGetModifierSelection()", referenced from:
      ofxTLFlags::mousePressed(ofMouseEventArgs&, long) in ofxTLFlags.o
      ofxTLFlags::mouseReleased(ofMouseEventArgs&, long) in ofxTLFlags.o
      ofxTLKeyframes::mousePressed(ofMouseEventArgs&, long) in ofxTLKeyframes.o
      ofxTLPage::mouseReleased(ofMouseEventArgs&, long) in ofxTLPage.o
      ofxTLSwitches::mousePressed(ofMouseEventArgs&, long) in ofxTLSwitches.o
      ofxTLSwitches::mouseReleased(ofMouseEventArgs&, long) in ofxTLSwitches.o
  "RemoveCocoaMenusFromGlut(std::string)", referenced from:
      ofxTimeline::removeCocoaMenusFromGlut(std::string) in ofxTimeline.o
  "ofGetModifierShortcutKeyPressed()", referenced from:
      ofxTimeline::keyPressed(ofKeyEventArgs&) in ofxTimeline.o
  "_alBufferData", referenced from:
      ofOpenALSoundPlayer_TimelineAdditions::loadSound(std::string, bool) in ofOpenALSoundPlayer_TimelineAdditions.o
      ofOpenALSoundPlayer_TimelineAdditions::threadedFunction() in ofOpenALSoundPlayer_TimelineAdditions.o
  "_alDeleteBuffers", referenced from:
      ofOpenALSoundPlayer_TimelineAdditions::unloadSound() in ofOpenALSoundPlayer_TimelineAdditions.o
  "_alDeleteSources", referenced from:
      ofOpenALSoundPlayer_TimelineAdditions::update(ofEventArgs&) in ofOpenALSoundPlayer_TimelineAdditions.o
      ofOpenALSoundPlayer_TimelineAdditions::unloadSound() in ofOpenALSoundPlayer_TimelineAdditions.o
  "_alGenBuffers", referenced from:
      ofOpenALSoundPlayer_TimelineAdditions::loadSound(std::string, bool) in ofOpenALSoundPlayer_TimelineAdditions.o
  "_alGenSources", referenced from:
      ofOpenALSoundPlayer_TimelineAdditions::loadSound(std::string, bool) in ofOpenALSoundPlayer_TimelineAdditions.o
      ofOpenALSoundPlayer_TimelineAdditions::play() in ofOpenALSoundPlayer_TimelineAdditions.o
  "_alGetError", referenced from:
      ofOpenALSoundPlayer_TimelineAdditions::loadSound(std::string, bool) in ofOpenALSoundPlayer_TimelineAdditions.o
      ofOpenALSoundPlayer_TimelineAdditions::play() in ofOpenALSoundPlayer_TimelineAdditions.o
  "_alGetSourcef", referenced from:
      ofOpenALSoundPlayer_TimelineAdditions::getPosition() in ofOpenALSoundPlayer_TimelineAdditions.o
      ofOpenALSoundPlayer_TimelineAdditions::getPositionMS() in ofOpenALSoundPlayer_TimelineAdditions.o
      ofOpenALSoundPlayer_TimelineAdditions::getCurrentBufferSum(int) in ofOpenALSoundPlayer_TimelineAdditions.o
  "_alGetSourcei", referenced from:
      ofOpenALSoundPlayer_TimelineAdditions::threadedFunction() in ofOpenALSoundPlayer_TimelineAdditions.o
      ofOpenALSoundPlayer_TimelineAdditions::update(ofEventArgs&) in ofOpenALSoundPlayer_TimelineAdditions.o
      ofOpenALSoundPlayer_TimelineAdditions::getIsPlaying() in ofOpenALSoundPlayer_TimelineAdditions.o
      ofOpenALSoundPlayer_TimelineAdditions::getIsPaused() in ofOpenALSoundPlayer_TimelineAdditions.o
      ofOpenALSoundPlayer_TimelineAdditions::getCurrentBufferSum(int) in ofOpenALSoundPlayer_TimelineAdditions.o
  "_alListener3f", referenced from:
      ofOpenALSoundPlayer_TimelineAdditions::initialize() in ofOpenALSoundPlayer_TimelineAdditions.o
  "_alSourcePausev", referenced from:
      ofOpenALSoundPlayer_TimelineAdditions::setPaused(bool) in ofOpenALSoundPlayer_TimelineAdditions.o
  "_alSourcePlayv", referenced from:
      ofOpenALSoundPlayer_TimelineAdditions::threadedFunction() in ofOpenALSoundPlayer_TimelineAdditions.o
      ofOpenALSoundPlayer_TimelineAdditions::setPaused(bool) in ofOpenALSoundPlayer_TimelineAdditions.o
      ofOpenALSoundPlayer_TimelineAdditions::play() in ofOpenALSoundPlayer_TimelineAdditions.o
  "_alSourceQueueBuffers", referenced from:
      ofOpenALSoundPlayer_TimelineAdditions::loadSound(std::string, bool) in ofOpenALSoundPlayer_TimelineAdditions.o
      ofOpenALSoundPlayer_TimelineAdditions::threadedFunction() in ofOpenALSoundPlayer_TimelineAdditions.o
  "_alSourceStopv", referenced from:
      ofOpenALSoundPlayer_TimelineAdditions::stop() in ofOpenALSoundPlayer_TimelineAdditions.o
  "_alSourceUnqueueBuffers", referenced from:
      ofOpenALSoundPlayer_TimelineAdditions::threadedFunction() in ofOpenALSoundPlayer_TimelineAdditions.o
  "_alSourcef", referenced from:
      ofOpenALSoundPlayer_TimelineAdditions::loadSound(std::string, bool) in ofOpenALSoundPlayer_TimelineAdditions.o
      ofOpenALSoundPlayer_TimelineAdditions::setVolume(float) in ofOpenALSoundPlayer_TimelineAdditions.o
      ofOpenALSoundPlayer_TimelineAdditions::setPosition(float) in ofOpenALSoundPlayer_TimelineAdditions.o
      ofOpenALSoundPlayer_TimelineAdditions::setPan(float) in ofOpenALSoundPlayer_TimelineAdditions.o
      ofOpenALSoundPlayer_TimelineAdditions::setSpeed(float) in ofOpenALSoundPlayer_TimelineAdditions.o
      ofOpenALSoundPlayer_TimelineAdditions::play() in ofOpenALSoundPlayer_TimelineAdditions.o
  "_alSourcefv", referenced from:
      ofOpenALSoundPlayer_TimelineAdditions::loadSound(std::string, bool) in ofOpenALSoundPlayer_TimelineAdditions.o
      ofOpenALSoundPlayer_TimelineAdditions::setPan(float) in ofOpenALSoundPlayer_TimelineAdditions.o
      ofOpenALSoundPlayer_TimelineAdditions::play() in ofOpenALSoundPlayer_TimelineAdditions.o
  "_alSourcei", referenced from:
      ofOpenALSoundPlayer_TimelineAdditions::loadSound(std::string, bool) in ofOpenALSoundPlayer_TimelineAdditions.o
      ofOpenALSoundPlayer_TimelineAdditions::setLoop(bool) in ofOpenALSoundPlayer_TimelineAdditions.o
      ofOpenALSoundPlayer_TimelineAdditions::play() in ofOpenALSoundPlayer_TimelineAdditions.o
  "_alcCloseDevice", referenced from:
      ofOpenALSoundPlayer_TimelineAdditions::close() in ofOpenALSoundPlayer_TimelineAdditions.o
  "_alcCreateContext", referenced from:
      ofOpenALSoundPlayer_TimelineAdditions::initialize() in ofOpenALSoundPlayer_TimelineAdditions.o
  "_alcDestroyContext", referenced from:
      ofOpenALSoundPlayer_TimelineAdditions::close() in ofOpenALSoundPlayer_TimelineAdditions.o
  "_alcMakeContextCurrent", referenced from:
      ofOpenALSoundPlayer_TimelineAdditions::initialize() in ofOpenALSoundPlayer_TimelineAdditions.o
  "_alcOpenDevice", referenced from:
      ofOpenALSoundPlayer_TimelineAdditions::initialize() in ofOpenALSoundPlayer_TimelineAdditions.o
  "_alcProcessContext", referenced from:
      ofOpenALSoundUpdate_TimelineAdditions() in ofOpenALSoundPlayer_TimelineAdditions.o
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)

[zeitkunst]

If I had watched the video, I would have realized that I needed to add "-framework OpenAL". So that takes care of the OpenAL linking errors. The other linking errors still exist, and it seems as if they have to do with Objective-C files not getting compiled when called from the Makefile. Any suggestions of how to fix this?

[zeitkunst]

Okay, figured this out through a slightly hacky way:

• First, compile ofxHostKeys_impl_mac.mm and ofxRemoveCocoaMenu.mm by hand by using one of the previous ofxTimeline compile steps as a template. Be sure to change the paths for each location where a *.o or *.d file is being created.
• Then, under PROJECT_LDFLAGS, add the following:

-framework OpenAL  ../../../addons/obj/osx/Release/ofxTimeline/src/ofxHotKeys_impl_mac.o ../../../addons/obj/osx/Release/ofxTimeline/src/ofxRemoveCocoaMenu.o

This should persist until the next time you run make clean.

If anyone has a better solution, please let me know!

[andyinabox]

Thanks @zeitkunst -- I have the same issue and trying your solution. Do you have any examples for how you compiled ofxHostKeys_impl_mac.mm and ofxRemoveCocoaMenu.mm?