linking with gpib-32.dll

[filipcrivits]

Hi ,

I'm trying to talk to the agilent 6645A with java.

Yes i used jni, creating the .c wrapper and .h works fine.

But i can't find how to link my dll with the gpib-32.dll using gcc.

Is there an option to link in gcc with the gpib-32.obj ?

gcc -c -I"C:\Program Files\Java\jdk1.6.0_07\include" -I"C:\Program Files\Java\jdk1.6.0_07\include\win32" -o gpib-32-java-.dll gpib-32-java.o gpib-32.obj

this one creates the dll but i keep getting the error : unsatisfied link error.

I also created my own .def file , then using dlltool to create .lib, but then i keep getting the error :  

undefined reference to `ibdev@24'

<!-- Compile the C code -->

<target name ="cc-JNIcompileC" depends="JNIheaders,JNIlib,jni_lib">

<mkdir dir="built/JNI"/>

<cc link="shared" outtype="shared" objdir="built/JNI" outfile="built/JNI/gpib-32-java.dll">

<compiler name="gcc">

<includepath location ="extern"/>

<includepath location ="built/JNI"/>

<includepath location ="${env.JAVA_HOME}/include"/>

<includepath location ="${env.JAVA_HOME}/include/win32"/>

<fileset dir="source/JNI" includes="gpib-32-java.c"/>

</compiler>

<linker name="gcc">

<libset dir="built/JNI" libs="gpib-32"/>

<linkerarg value="--kill-at"/>

<linkerarg value="-ogpib-32-java.dll"/>

</linker>

</cc>

</target>

This was the build file for it using ant

Anybody allready passed the linking step ? ( google doesn't help to , i searched for every thread about jni java gpib-32)

thx

[Joeri_Wingelinckx_NI]

Hello,

As you wrote that you successfully implemented the wrapper using the JNI, I suppose you already found this Knowledge Base?

Unfortunately I cannot provide you with a ready to run solution, but maybe this article, which I found using Google, could help you.

And maybe the JPIB project can help you too.

[filipcrivits]

Hi,

thx for the reply 🙂

Yes i found those links, thx anyway.

http://jpib.sourceforge.net/ --> I have not found this one. But is seems very interesting . thx

I foud a way to convert the .obj file to a lib file. And it works !

So for everyone who wants to use gcc, try this 🙂

 

lib -out:testlib.lib testlib.obj 

grts