Xpm compile error, help please?

[Mike D Jenkins <mdjenkin@barney.teaching.cs.adelaide.edu.au>]

When compiling crossfire 0.90.1 on a Sun10 running SunOS 4.1.x, X11R5,
make gave the error:

gcc -ansi -Wall -o crossfire apply.o attack.o daemon.o encounter.o hiscore.o init.o input.o login.o main.o monster.o move.o obwin.o pets.o player.o shop.o socket.o sounds.o spells.o swamp.o swap.o time.o xio.o -O -pipe  -L/usr/local/X11R5/lib -L../common -lcross -lXpm -lX11   
ld: Undefined symbol 
   _XpmCreatePixmapFromBuffer 

The file /usr/local/X11R5/lib/libXpm.a exists.

Any ideas?

/----------------------------------\ /-------------------------------\
|         Michael D Jenkins         | "We attack tomorrow under the  |
| mike@smug.student.adelaide.edu.au |  cover of daylight.  They'll   |
|    mdjenkin@cs.adelaide.edu.au    |  never expect a morning charge | 
|  Committee Member of the Adelaide |  across the minefield."        |
|    Uni Computing Students Club.   |             Rimmer, Red Dwarf  |
\----------------------------------/ \-------------------------------/