diff --git a/src/Makefile.am b/src/Makefile.am
index 377dc4c..b086c0c 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -1,7 +1,7 @@
 #dinincludedir = $(pkgsrcdir)
 
-AM_CXXFLAGS = -I /usr/include/tcl8.6 -Wall -D_THREAD_SAFE -DHAVE_OPENGL -D__LICENSED__ -D __SVG__ -D__GPL20__ -D __BOOST_TIME__ -DPREFIX=\"@prefix@\"
-LIBS +=  -ltcl8.6 -lSDL -lGL -lpthread -lasound
+AM_CXXFLAGS = -Wall -D_THREAD_SAFE -DHAVE_OPENGL -D__LICENSED__ -D __SVG__ -D__GPL20__ -D __BOOST_TIME__ -DPREFIX=\"@prefix@\"
+LIBS +=  -ltcl -lSDL -lGL -lpthread -lasound
 
 bin_PROGRAMS = din
 din_SOURCES = alarm.cc arrow_button.cc audio.cc authors_note.cc ball.cc ball_ops.cc basic_editor.cc beat2value.cc binaural_drone.cc binaural_drones.cc bit_display.cc box_selector.cc button.cc capturer.cc checkbutton.cc chrono.cc circler.cc command.cc compressor.cc console.cc console_iterator.cc countries.cc cross_button.cc curve.cc curve_display.cc curve_editor.cc curve_library.cc curve_mixer.cc curve_picker.cc curve_samples.cc custom_periodic.cc delay.cc din.cc din_info.cc drawrrow.cc drone.cc eval.cc fader.cc fft.cc field.cc filled_button.cc font.cc font_editor.cc fractaliser.cc globals.cc glyph.cc gravity.cc hit.cc help.cc item_list.cc keyboard_keyboard.cc label.cc levels.cc line.cc lissajous.cc listeners.cc main.cc menu.cc mesh.cc midi_in.cc minus_button.cc mocap.cc modulator.cc mondrian.cc morpher.cc morse_code.cc mouse_slider.cc multi_curve.cc note.cc noiser.cc number.cc oscilloscope.cc phrasor.cc play.cc plugin.cc plugin_browser.cc plus_button.cc point_modulator.cc range.cc recorder.cc rect.cc rose_milker.cc scale_info.cc scale_notes.cc scalelist.cc separator.cc settings.cc sine_mixer.cc slit.cc solver.cc spiraler.cc starrer.cc superformula.cc tap_bpm.cc tcl_interp.cc textboard.cc tokenizer.cc trail.cc triggered_note.cc ui.cc ui_sin_cos_radius.cc viewwin.cc warper.cc widget.cc kiss_fft.c RtAudio.cpp RtMidi.cpp
