Crosscompilation worked at least until 2008-09-28. On 2008-10-21, autogen.sh shows some issues. Log is attached below (I do not trust pastebin's persistence :) .
autoconf --version
Autoconf version 2.13
./autogen.sh
Copying file po/quot.sed
Copying file po/remove-potcdate.sin
/usr/share/aclocal/audiofile.m4:12: warning: underquoted definition of AM_PATH_AUDIOFILE
run info '(automake)Extending aclocal'
or see http://sources.redhat.com/automake/automake.html#Extending%20aclocal
/usr/share/aclocal/audiofile.m4:12: warning: underquoted definition of AM_PATH_AUDIOFILE
run info '(automake)Extending aclocal'
or see http://sources.redhat.com/automake/automake.html#Extending%20aclocal
configure.in: installing `./install-sh'
configure.in: installing `./missing'
Makefile.am: installing `./INSTALL'
navit/Makefile.am: installing `./compile'
navit/Makefile.am: installing `./depcomp'
navit/data/binfile/Makefile.am:6: `libdata_binfile.la' is already going to be installed in `moduledata'
navit/data/binfile/Makefile.am:4: `libdata_binfile.la' previously declared here
navit/data/mg/Makefile.am:6: `libdata_mg.la' is already going to be installed in `moduledata'
navit/data/mg/Makefile.am:4: `libdata_mg.la' previously declared here
navit/data/textfile/Makefile.am:6: `libdata_textfile.la' is already going to be installed in `moduledata'
navit/data/textfile/Makefile.am:4: `libdata_textfile.la' previously declared here
navit/graphics/null/Makefile.am:6: `libgraphics_null.la' is already going to be installed in `modulegraphics'
navit/graphics/null/Makefile.am:4: `libgraphics_null.la' previously declared here
navit/graphics/win32/Makefile.am:6: `libgraphics_win32.la' is already going to be installed in `modulegraphics'
navit/graphics/win32/Makefile.am:4: `libgraphics_win32.la' previously declared here
navit/gui/win32/Makefile.am:6: `libgui_win32.la' is already going to be installed in `modulegui'
navit/gui/win32/Makefile.am:4: `libgui_win32.la' previously declared here
navit/osd/core/Makefile.am:6: `libosd_core.la' is already going to be installed in `moduleosd'
navit/osd/core/Makefile.am:4: `libosd_core.la' previously declared here
navit/data/binfile/Makefile.am:6: `libdata_binfile.la' is already going to be installed in `moduledata'
navit/data/binfile/Makefile.am:4: `libdata_binfile.la' previously declared here
navit/data/mg/Makefile.am:6: `libdata_mg.la' is already going to be installed in `moduledata'
navit/data/mg/Makefile.am:4: `libdata_mg.la' previously declared here
navit/data/textfile/Makefile.am:6: `libdata_textfile.la' is already going to be installed in `moduledata'
navit/data/textfile/Makefile.am:4: `libdata_textfile.la' previously declared here
navit/graphics/null/Makefile.am:6: `libgraphics_null.la' is already going to be installed in `modulegraphics'
navit/graphics/null/Makefile.am:4: `libgraphics_null.la' previously declared here
navit/graphics/win32/Makefile.am:6: `libgraphics_win32.la' is already going to be installed in `modulegraphics'
navit/graphics/win32/Makefile.am:4: `libgraphics_win32.la' previously declared here
navit/gui/win32/Makefile.am:6: `libgui_win32.la' is already going to be installed in `modulegui'
navit/gui/win32/Makefile.am:4: `libgui_win32.la' previously declared here
navit/osd/core/Makefile.am:6: `libosd_core.la' is already going to be installed in `moduleosd'
navit/osd/core/Makefile.am:4: `libosd_core.la' previously declared here
autoreconf2.50: automake failed with exit status: 1