Java - Problemas al crear dll para JNI

Al compilar el codigo me sale el siguiente error:
C:\projecte\inicia>cl -Ic:\jdk1.3\include -Ic:\jdk1.3\include\win32 -Ic:\precise
100\include -LD IniciaImp.c -FeInicia.dll
Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 12.00.8168 for 80x86
Copyright (C) Microsoft Corp 1984-1998. All rights reserved.

IniciaImp.c
Microsoft (R) Incremental Linker Version 6.00.8168
Copyright (C) Microsoft Corp 1992-1998. All rights reserved.

/dll
/implib:Inicia.lib
/out:Inicia.dll
IniciaImp.obj
Creating library Inicia.lib and object Inicia.exp
IniciaImp.obj : error LNK2001: unresolved external symbol _pbInitialize@0
Inicia.dll : fatal error LNK1120: 1 unresolved externals

C:\projecte\inicia>

PORQUE?????
gracies