ofxTimeline - entry in addons.make does not get included in build

I am trying to build ofxTimeline examples and all the addons get compiled into the /obj directory except ofxTimeline. The build then ends with the “undefined reference to ofxTimeline…” errors. Has anyone seen this and is there a way to force the addons to get compiled? Also, is this a bug in the makefile system?
Akiba

Here is more info on my problem. I’ve enabled MAKEFILE_DEBUG in the makefile hierarchy. Here is the addons section. You can see that ofxTimeline is listed in the ADDONS but there is no mention in the source files:

=============================configure.core.flags.make========================
—OF_CORE_LIBS_LDFLAGS—
—OF_CORE_LIBS—
===================ADDONS================
—PROJECT_ADDONS—
ofxOsc
ofxNetwork
ofxFTGL
ofxMSATimer
ofxLocalization
ofxTextInputField
ofxTween
ofxTimecode
ofxUI
ofxRange
ofxTimeline

—PROJECT_ADDONS_PATHS—
—PROJECT_ADDONS_WITH_CONFIG—
—PROJECT_ADDONS_INCLUDES—
…/…/…/addons/ofxOsc/src
…/…/…/addons/ofxOsc/libs
…/…/…/addons/ofxOsc/libs/oscpack
…/…/…/addons/ofxOsc/libs/oscpack/src
…/…/…/addons/ofxOsc/libs/oscpack/src/osc
…/…/…/addons/ofxOsc/libs/oscpack/src/ip
…/…/…/addons/ofxOsc/libs/oscpack/src/ip/posix
…/…/…/addons/ofxOsc/libs/oscpack/src/ip/win32
…/…/…/addons/ofxNetwork/src
…/…/…/addons/ofxFTGL/src
…/…/…/addons/ofxFTGL/libs
…/…/…/addons/ofxFTGL/libs/FTGL
…/…/…/addons/ofxFTGL/libs/FTGL/include
…/…/…/addons/ofxFTGL/libs/FTGL/include/FTGL
…/…/…/addons/ofxFTGL/libs/FTGL/lib
…/…/…/addons/ofxFTGL/libs/FTGL/lib/vs
…/…/…/addons/ofxFTGL/libs/FTGL/lib/linux
…/…/…/addons/ofxFTGL/libs/FTGL/lib/vs64
…/…/…/addons/ofxFTGL/libs/FTGL/lib/osx
…/…/…/addons/ofxFTGL/libs/FTGL/lib/linux64
…/…/…/addons/ofxFTGL/libs/FTGL/include
…/…/…/addons/ofxFTGL/libs/FTGL/include/FTGL
…/…/…/addons/ofxMSATimer/src
…/…/…/addons/ofxLocalization/src
…/…/…/addons/ofxTextInputField/src
…/…/…/addons/ofxTween/src
…/…/…/addons/ofxTween/src/Easings
…/…/…/addons/ofxTimecode/src
…/…/…/addons/ofxUI/src
…/…/…/addons/ofxRange/src
…/…/…/addons/ofxXmlSettings/src
…/…/…/addons/ofxXmlSettings/libs
—PROJECT_ADDONS_SOURCE_FILES—
…/…/…/addons/ofxOsc/src/ofxOscMessage.cpp
…/…/…/addons/ofxOsc/src/ofxOscParameterSync.cpp
…/…/…/addons/ofxOsc/src/ofxOscReceiver.cpp
…/…/…/addons/ofxOsc/src/ofxOscSender.cpp
…/…/…/addons/ofxOsc/src/ofxOscBundle.cpp
…/…/…/addons/ofxOsc/libs/oscpack/src/osc/OscOutboundPacketStream.cpp
…/…/…/addons/ofxOsc/libs/oscpack/src/osc/OscTypes.cpp
…/…/…/addons/ofxOsc/libs/oscpack/src/osc/OscPrintReceivedElements.cpp
…/…/…/addons/ofxOsc/libs/oscpack/src/osc/OscReceivedElements.cpp
…/…/…/addons/ofxOsc/libs/oscpack/src/ip/IpEndpointName.cpp
…/…/…/addons/ofxOsc/libs/oscpack/src/ip/posix/NetworkingUtils.cpp
…/…/…/addons/ofxOsc/libs/oscpack/src/ip/posix/UdpSocket.cpp
…/…/…/addons/ofxNetwork/src/ofxUDPManager.cpp
…/…/…/addons/ofxNetwork/src/ofxTCPClient.cpp
…/…/…/addons/ofxNetwork/src/ofxTCPServer.cpp
…/…/…/addons/ofxNetwork/src/ofxTCPManager.cpp
…/…/…/addons/ofxFTGL/src/ofxFTGLFont.cpp
…/…/…/addons/ofxFTGL/src/ofxFTGLSimpleLayout.cpp
…/…/…/addons/ofxMSATimer/src/ofxMSATimer.cpp
…/…/…/addons/ofxLocalization/src/ofxLocalization.cpp
…/…/…/addons/ofxTextInputField/src/ofxTextInputField.cpp
…/…/…/addons/ofxTween/src/Easings/ofxEasingSine.cpp
…/…/…/addons/ofxTween/src/Easings/ofxEasingExpo.cpp
…/…/…/addons/ofxTween/src/Easings/ofxEasingCubic.cpp
…/…/…/addons/ofxTween/src/Easings/ofxEasingCirc.cpp
…/…/…/addons/ofxTween/src/Easings/ofxEasing.cpp
…/…/…/addons/ofxTween/src/Easings/ofxEasingBack.cpp
…/…/…/addons/ofxTween/src/Easings/ofxEasingElastic.cpp
…/…/…/addons/ofxTween/src/Easings/ofxEasingBounce.cpp
…/…/…/addons/ofxTween/src/Easings/ofxEasingQuint.cpp
…/…/…/addons/ofxTween/src/Easings/ofxEasingLinear.cpp
…/…/…/addons/ofxTween/src/Easings/ofxEasingQuart.cpp
…/…/…/addons/ofxTween/src/Easings/ofxEasingQuad.cpp
…/…/…/addons/ofxTween/src/ofxTween.cpp
…/…/…/addons/ofxTimecode/src/ofxTimecode.cpp
…/…/…/addons/ofxUI/src/ofxUI2DPad.cpp
…/…/…/addons/ofxUI/src/ofxUIFPS.cpp
…/…/…/addons/ofxUI/src/ofxUISpacer.cpp
…/…/…/addons/ofxUI/src/ofxUIWidget.cpp
…/…/…/addons/ofxUI/src/ofxUIImageSlider.cpp
…/…/…/addons/ofxUI/src/ofxUISuperCanvas.cpp
…/…/…/addons/ofxUI/src/ofxUIWaveform.cpp
…/…/…/addons/ofxUI/src/ofxUIRectangle.cpp
…/…/…/addons/ofxUI/src/ofxUIRadio.cpp
…/…/…/addons/ofxUI/src/ofxUISpectrum.cpp
…/…/…/addons/ofxUI/src/ofxUI2DGraph.cpp
…/…/…/addons/ofxUI/src/ofxUIWidgetWithLabel.cpp
…/…/…/addons/ofxUI/src/ofxUIToggleMatrix.cpp
…/…/…/addons/ofxUI/src/ofxUIImage.cpp
…/…/…/addons/ofxUI/src/ofxUITextInput.cpp
…/…/…/addons/ofxUI/src/ofxUIImageButton.cpp
…/…/…/addons/ofxUI/src/ofxUIValuePlotter.cpp
…/…/…/addons/ofxUI/src/ofxUIMultiImageButton.cpp
…/…/…/addons/ofxUI/src/ofxUITextArea.cpp
…/…/…/addons/ofxUI/src/ofxUINumberDialer.cpp
…/…/…/addons/ofxUI/src/ofxUIImageSampler.cpp
…/…/…/addons/ofxUI/src/ofxUILabelButton.cpp
…/…/…/addons/ofxUI/src/ofxUIDragableLabelButton.cpp
…/…/…/addons/ofxUI/src/ofxUISlider.cpp
…/…/…/addons/ofxUI/src/ofxUIDropDownList.cpp
…/…/…/addons/ofxUI/src/ofxUICanvas.cpp
…/…/…/addons/ofxUI/src/ofxUIToggle.cpp
…/…/…/addons/ofxUI/src/ofxUIButton.cpp
…/…/…/addons/ofxUI/src/ofxUIEventArgs.cpp
…/…/…/addons/ofxUI/src/ofxUILabelToggle.cpp
…/…/…/addons/ofxUI/src/ofxUIScrollableCanvas.cpp
…/…/…/addons/ofxUI/src/ofxUIImageToggle.cpp
…/…/…/addons/ofxUI/src/ofxUIBiLabelSlider.cpp
…/…/…/addons/ofxUI/src/ofxUIMovingGraph.cpp
…/…/…/addons/ofxUI/src/ofxUIRotarySlider.cpp
…/…/…/addons/ofxUI/src/ofxUIBaseDraws.cpp
…/…/…/addons/ofxUI/src/ofxUIRangeSlider.cpp
…/…/…/addons/ofxUI/src/ofxUILabel.cpp
…/…/…/addons/ofxUI/src/ofxUITabBar.cpp
…/…/…/addons/ofxUI/src/ofxUICircleSlider.cpp
…/…/…/addons/ofxUI/src/ofxUIFPSSlider.cpp
…/…/…/addons/ofxUI/src/ofxUISortableList.cpp
…/…/…/addons/ofxUI/src/ofxUIMinimalSlider.cpp
…/…/…/addons/ofxUI/src/ofxUIMultiImageToggle.cpp
…/…/…/addons/ofxXmlSettings/src/ofxXmlSettings.cpp
…/…/…/addons/ofxXmlSettings/libs/tinyxmlerror.cpp
…/…/…/addons/ofxXmlSettings/libs/tinyxmlparser.cpp
…/…/…/addons/ofxXmlSettings/libs/tinyxml.cpp
—PROJECT_ADDONS_LIBS—
…/…/…/addons/ofxFTGL/libs/FTGL/lib/linux64/libftgl.a
…/…/…/addons/ofxFTGL/libs/FTGL/lib/linux64/libftgl.a
…/…/…/addons/ofxFTGL/libs/FTGL/lib/linux64/libftgl.a
…/…/…/addons/ofxFTGL/libs/FTGL/lib/linux64/libftgl.a
…/…/…/addons/ofxFTGL/libs/FTGL/lib/linux64/libftgl.a
…/…/…/addons/ofxFTGL/libs/FTGL/lib/linux64/libftgl.a
…/…/…/addons/ofxFTGL/libs/FTGL/lib/linux64/libftgl.a
…/…/…/addons/ofxFTGL/libs/FTGL/lib/linux64/libftgl.a
…/…/…/addons/ofxFTGL/libs/FTGL/lib/linux64/libftgl.a
—PROJECT_ADDONS_OBJFILES—
—PROJECT_ADDONS_BASE_CFLAGS—
—PROJECT_ADDONS_DEFINES_CFLAGS—
—PROJECT_ADDONS_INCLUDES_CFLAGS—
—PROJECT_ADDONS_LDFLAGS—
—OF_PROJECT_SOURCE_PATHS—