FTBFS due to use of #elif without expression

Binary package hint: vice

The package currently FTBFS:

if gcc -DHAVE_CONFIG_H -I. -I. -I../../../src -I../../../src/arch/unix -D_REENTRANT -I/usr/include/gtk-2.0 -I/usr/lib/gtk-2.0/include -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pango-1.0 -I/usr/include/pixman-1 -I/usr/include/freetype2 -I/usr/include/directfb -I/usr/include/libpng12 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I../../../src -I../../../src/drive -I../../../src/rs232drv -I../../../src/c64 -I../../../src/c64dtv -I../../../src/c128 -I../../../src/vic20 -I../../../src/pet -I../../../src/cbm2 -I../../../src/sid -I../../../src -g -O2 -MT joy.o -MD -MP -MF ".deps/joy.Tpo" -c -o joy.o joy.c; \
 then mv -f ".deps/joy.Tpo" ".deps/joy.Po"; else rm -f ".deps/joy.Tpo"; exit 1; fi
joy.c:134:6: error: #elif with no expression
make[6]: *** [joy.o] Error 1
make[6]: Leaving directory `/build/buildd/vice-2.1.dfsg/src/arch/unix'
make[5]: *** [all-recursive] Error 1
make[5]: Leaving directory `/build/buildd/vice-2.1.dfsg/src/arch/unix'
make[4]: *** [all-recursive] Error 1
make[4]: Leaving directory `/build/buildd/vice-2.1.dfsg/src/arch'
make[3]: *** [all-recursive] Error 1
make[3]: Leaving directory `/build/buildd/vice-2.1.dfsg/src'
make[2]: *** [all] Error 2
make[2]: Leaving directory `/build/buildd/vice-2.1.dfsg/src'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/build/buildd/vice-2.1.dfsg'
make: *** [build-stamp] Error 2
dpkg-buildpackage: failure: debian/rules build gave error exit status 2