Re: g++ & gcj

[Dan Kegel <dank at kegel dot com>]

Jari Korva wrote:
> I have been trying to build a working cross-gcj for armv5l and armv5b
> and finally succeeded in it - thanks to crosstool-0.28-rc32! However, now
> I have run into some problems with c++, especially while compiling c++ files
> which call Java methods through CNI.
>
> First of all, g++ is not able to found header files from ${prefix}/include
> although e.g. ffi.h and all the other Java headers are properly installed
> there. 

Sounds like I need to add a 'hello, java' test to testhello.sh
in crosstool, and then fix the problems it detects.  Maybe the
prefix for libgcj needs to be adjusted if sysroot is being used.

> Then, if I explicitly add that directory using -I I get tons of
> errors:
>
> arm-unknown-linux-gnu-g++ -I/opt/cross/arm-linux-3.4.0/include -o cni
> cni-test.cpp -lgcj
> In file included from
> /opt/cross/arm-linux-3.4.0/include/java/lang/Object.h:16,
>                  from /opt/cross/arm-linux-3.4.0/include/gcj/cni.h:16,
>                  from cni-test.cpp:2:
> /opt/cross/arm-linux-3.4.0/include/gcj/javaprims.h:90: error: stray '$' in
> program ...
>
> Does anyone have a clue what's wrong? I've been trying both gcc 3.4.0 and
> 3.4.1.

Nope, other than perhaps you're trying to include Java source
into a C++ program?  I've never played with gcj at all, so I'm
pretty useless here.
- Dan


--
My technical stuff: http://kegel.com
My politics: see http://www.misleader.org for examples of why I'm for regime change

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