Re: gcjh, Headers hierarchy and namespaces

[Florian Bourgier <fbourgier at sycomore-multimedia dot com>]

Ok thanks now it finds the headers but compling is ok but not linking
with the following code (which is not using my headers and my library) i 
got an error :

#include <iostream>
#include <java/lang/String.h>
#include <gcj/array.h>
#include <gcj/cni.h>
#include <gnu/gcj/RawData.h>
#include <java/lang/System.h>
using namespace std;

int main()
{
   std::string cppstr("Hello, C++ String");
   jstring jstr = JvNewStringUTF(cppstr.c_str());
   //::java::lang::System::out->println(jstr);
   cout << jstr;
}

Here what I get with > g++ Exemple.c -o Exemple.exe

/cygdrive/c/DOCUME~1/FBOURG~1/LOCALS~1/Temp/ccey63Ls.o(.text+0x34):Exemple.c: 
und
efined reference to `___gcj_personality_sj0'
/cygdrive/c/DOCUME~1/FBOURG~1/LOCALS~1/Temp/ccey63Ls.o(.text$_Z14JvNewStringUTFPK
c+0xd):Exemple.c: undefined reference to `__Jv_NewStringUTF'
collect2: ld returned 1 exit status

I tried to specify -Llibgch or -Llibjava but none of them is changing 
anything.

What can i do ? Thanks


Secondly, I am looking for good documentation on JNI types. Indeed, I 
compile my Java classes in binary with gcj, then I used gcjh to generate 
the headers so that people could make c++ programs and use my Java class 
transformed to binary. I dont want to use JNI to make the two 
environnement communicate, but to make my Java classes available for 
native environnements.

Thanks

Regards,

Florian BOURGIER

Bryce McKinlay wrote:

> Florian Bourgier wrote:
>
> > Indeed, my Java classes were organized in package and I had a tree. 
> > So I would have liekd to keep the same tree for the headers. But when 
> > I want to include a file like this :
> >
> > #include "AtomicRecord.h"
> >
> > int main()
> > {}
> >
> > the headers cannot be found. And if I write 
> > "D:\test\Partie3-Envt_natif\gcj-gcjh\com\eadstelecom\framework\data\AtomicRecord.h" 
> > Then I have the error that Lockable cannot be found un com/eads/etc...
> > How can I solve this ?
> >
> > Can I keep my tree ? I have to because if not, there will be classes 
> > with the same name and this is impossible .
> > How can I say to search under a directory for the headers ?
>
>
> Use <>'s instead of ""'s. ie:
>
> #include <com/eadstelecom/framework/data/AtomicRecord.h>
>
> Then make sure that the base directory (ie the one that contains 
> "com") is included with -I when invoking g++.
>
> Regards
>
> Bryce