[nas] Can't find library: "audio"

[Gansser, Martin]

I tried to compile nas-1.5 with the Imake system, but it fails now with the follwing error message:
The System is hpux 11.00

        if [ ! -d dbm ]; then rm -f -r dbm; mkdir dbm; else /bin/true; fi
        (cd dbm; rm -f *.o; ar -x /usr/lib/libdbm.a; \
        ld -r -o a.out.o -h bcopy ndbm.o; \
        mv a.out.o ndbm.o; ld -r -o ../dbm.o *.o)
ld: Can't open ndbm.o
ld: No such file or directory
*** Error exit code 1
`all' not remade because of errors
making all in ./server/dda/hpux...
        rm -f auhpux.o
        gcc -c -O  -I. -I../../include -I../../../include -I../../dia -I../../.././include -I/usr/include/X11R6 -I/usr/contrib/X11R6/include -I/usr/local/X11R6/include -DSYSV -Dhpux     auhpux.c
        rm -f config.o
        gcc -c -O  -I. -I../../include -I../../../include -I../../dia -I../../.././include -I/usr/include/X11R6 -I/usr/contrib/X11R6/include -I/usr/local/X11R6/include -DSYSV -Dhpux     config.c
        rm -f libhpux.a
        ar clq libhpux.a auhpux.o config.o
Make: Don't know how to make os/libos.a.  Stop.
making all in ./lib...
making all in ./lib/audio...
Make: Don't know how to make AuPassCDebugFlags.  Stop.
*** Error exit code 1
`all' not remade because of errors
making all in ./clients...
making all in ./clients/audio...
making all in ./clients/audio/widgets...
        gcc -O   -I../../.././include -I/usr/include/X11R6 -I/usr/contrib/X11R6/include -I/usr/local/X11R6/include -DSYSV -Dhpux    -c Slider.c
        rm -f libwidgets.a
        ar clq libwidgets.a Slider.o
making all in ./clients/audio/auconvert...
        gcc -O   -I../../.././include -I/usr/include/X11R6 -I/usr/contrib/X11R6/include -I/usr/local/X11R6/include -DSYSV -Dhpux    -c auconvert.c
        if [ -f auconvert ]; then rm -f auconvert~; mv -f auconvert auconvert~; fi
        gcc -o auconvert auconvert.o -O   -L../../.././lib/audio -L/usr/lib/X11R6 -L/usr/contrib/X11R6/lib -L/usr/lib/X11R6 -L/usr/contrib/X11R6/lib -laudio -lXt -lXext -lX11 -lm   
/usr/ccs/bin/ld: Can't find library: "audio"
collect2: ld returned 1 exit status
*** Error exit code 1


any help

thanks Martin