Greetings: I'm trying to debug a problem that occurs at the link stage in compiling CVS sources for Denemo. Here's the moment in question: g++ -DHAVE_CONFIG_H -I. -I. -I.. -I../intl -I../intl -I../include -I../pixmaps -DLOCALEDIR=\"/usr/local/share/locale\" -DPKGDATADIR=\"/usr/local/share/denemo/\" -I/usr/include/gtk-2.0 -I/usr/lib/gtk-2.0/include -I/usr/include/atk-1.0 -I/usr/include/pango-1.0 -I/usr/X11R6/include -I/usr/include/freetype2 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/libxml2 -g -Wall -O2 -c -o lyparser.o `test -f 'lyparser.cpp' || echo './'`lyparser.cpp /bin/sh ../libtool --mode=link g++ -I/usr/include/gtk-2.0 -I/usr/lib/gtk-2.0/include -I/usr/include/atk-1.0 -I/usr/include/pango-1.0 -I/usr/X11R6/include -I/usr/include/freetype2 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/libxml2 -g -Wall -O2 -o denemo articulations.o calculatepositions.o changenotehead.o chordops.o clefdialog.o commandfuncs.o contexts.o draw.o drawaccidentals.o drawclefs.o drawcursor.o drawkey.o drawdynamic.o drawlilydir.o drawnotes.o drawselection.o drawstemdir.o drawtimesig.o drawtuplets.o drawlyric.o dynamic.o drawfigure.o exportabc.o exportmudela.o exportxml.o file.o frogio.o gcs.o headerdialog.o hairpin.o help.o importxml.o importmidi.o kbd-custom.o kbd-interface.o keyresponses.o keysigdialog.o lilydirectives.o figure.o lyparserfuncs.o main.o measureops.o midi.o moveviewport.o mousing.o barline.o view.o mwidthdialog.o objops.o exportmidi.o instrumentname.o playback.o playbackprops.o plugin.o prefdialog.o prefops.o processstaffname.o csoundplayback.o lyric.o scoreops.o selectops.o staffheightdialog.o staffops.o staffpropdialog.o drawbarline.o slurs.o timedialog.o tomeasuredialog.o tupletops.o utils.o graceops.o runsilent.o drawgrace.o print.o exportcsound.o lylexer.o lyparser.o froglexer.o frogparser.o -Wl,--export-dynamic -lgtk-x11-2.0 -lgdk-x11-2.0 -latk-1.0 -lgdk_pixbuf-2.0 -lm -lpangoxft-1.0 -lpangox-1.0 -lpango-1.0 -lgobject-2.0 -lgmodule-2.0 -ldl -lglib-2.0 -L/usr/lib -lxml2 -lz -lm g++ -I/usr/include/gtk-2.0 -I/usr/lib/gtk-2.0/include -I/usr/include/atk-1.0 -I/usr/include/pango-1.0 -I/usr/X11R6/include -I/usr/include/freetype2 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/libxml2 -g -Wall -O2 -o denemo articulations.o calculatepositions.o changenotehead.o chordops.o clefdialog.o commandfuncs.o contexts.o draw.o drawaccidentals.o drawclefs.o drawcursor.o drawkey.o drawdynamic.o drawlilydir.o drawnotes.o drawselection.o drawstemdir.o drawtimesig.o drawtuplets.o drawlyric.o dynamic.o drawfigure.o exportabc.o exportmudela.o exportxml.o file.o frogio.o gcs.o headerdialog.o hairpin.o help.o importxml.o importmidi.o kbd-custom.o kbd-interface.o keyresponses.o keysigdialog.o lilydirectives.o figure.o lyparserfuncs.o main.o measureops.o midi.o moveviewport.o mousing.o barline.o view.o mwidthdialog.o objops.o exportmidi.o instrumentname.o playback.o playbackprops.o plugin.o prefdialog.o prefops.o processstaffname.o csoundplayback.o lyric.o scoreops.o selectops.o staffheightdialog.o staffops.o staffpropdialog.o drawbarline.o slurs.o timedialog.o tomeasuredialog.o tupletops.o utils.o graceops.o runsilent.o drawgrace.o print.o exportcsound.o lylexer.o lyparser.o froglexer.o frogparser.o -Wl,--export-dynamic -lgtk-x11-2.0 -lgdk-x11-2.0 -latk-1.0 -lgdk_pixbuf-2.0 -lpangoxft-1.0 -lpangox-1.0 -lpango-1.0 -lgobject-2.0 -lgmodule-2.0 -ldl -lglib-2.0 -L/usr/lib /usr/lib/libxml2.so -lz -lm lyparser.o(.bss+0x84): In function `typed_glist': ./lyparser.y:106: multiple definition of `yylloc' lylexer.o(.bss+0x10038): first defined here collect2: ld returned 1 exit status make[2]: *** [denemo] Error 1 make[2]: Leaving directory `/home/dlphilp/denemo/src' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/home/dlphilp/denemo' make: *** [all] Error 2 I've followed earlier advice and removed/restored lyparser.cpp, lyparser.h, and lylexer.cpp, but the error remains. The sources for those files are lylexer.l and lyparser.y, but I'm ham ignorant about flex and bison and know nothing about troubleshooting errors related to them. Any suggestions for fixing ? Flex 2.5.4, bison 1.35, gcc 3.2.2. Best regards, dp