[pylucene-dev] Re: using JCC

[Andi Vajda]

On Feb 19, 2008, at 20:59, Bill Janssen <janssen at parc.com> wrote:

> OK, I discovered the secret --classpath switch to JCC, and was able to
> generate the stubs.  However, when I tried to add --build, I run into
> the darn Linux gcj problem:
>
> % python -m jcc --classpath /tmp/Support.jar --jar /tmp/ 
> GoodStuff.jar --files 1 --python GoodStuff --build
> running build_ext
> building 'GoodStuff._GoodStuff' extension
> creating build/temp.linux-i686-2.5
> creating build/temp.linux-i686-2.5/usr
> creating build/temp.linux-i686-2.5/usr/lib
> creating build/temp.linux-i686-2.5/usr/lib/python2.5
> creating build/temp.linux-i686-2.5/usr/lib/python2.5/site-packages
> creating build/temp.linux-i686-2.5/usr/lib/python2.5/site-packages/ 
> JCC-1.7-py2.5-linux-i686.egg
> creating build/temp.linux-i686-2.5/usr/lib/python2.5/site-packages/ 
> JCC-1.7-py2.5-linux-i686.egg/jcc
> creating build/temp.linux-i686-2.5/usr/lib/python2.5/site-packages/ 
> JCC-1.7-py2.5-linux-i686.egg/jcc/sources
> creating build/temp.linux-i686-2.5/build
> creating build/temp.linux-i686-2.5/build/_GoodStuff
> gcc -pthread -fno-strict-aliasing -DNDEBUG -O2 -g -pipe -Wall -Wp,- 
> D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer- 
> size=4 -m32 -march=i386 -mtune=generic -fasynchronous-unwind-tables - 
> D_GNU_SOURCE -fPIC -fPIC -DPYTHON=1 -I/usr/java/jdk-1.6/include -I/ 
> usr/java/jdk-1.6/include/linux -Ibuild/_GoodStuff -I/usr/lib/ 
> python2.5/site-packages/JCC-1.7-py2.5-linux-i686.egg/jcc/sources -I/ 
> usr/include/python2.5 -c /usr/lib/python2.5/site-packages/JCC-1.7- 
> py2.5-linux-i686.egg/jcc/sources/jcc.cpp -o build/temp.linux- 
> i686-2.5/usr/lib/python2.5/site-packages/JCC-1.7-py2.5-linux- 
> i686.egg/jcc/sources/jcc.o -fno-strict-aliasing
> /usr/lib/gcc/i386-redhat-linux/4.1.2/../../../../include/c++/4.1.2/ 
> gcj/array.h:19: error: Java class %Gâ€˜%@__JArray%Gâ€™% 
> @ cannot have an implicit non-trivial destructor
> /usr/lib/gcc/i386-redhat-linux/4.1.2/../../../../include/c++/4.1.2/ 
> gcj/array.h:59: error: conflicting declaration %Gâ€˜%@typedef  
> class __JArray* jarray%Gâ€™%@
> /usr/java/jdk-1.6/include/jni.h:68: error: %Gâ€˜%@jarray% 
> Gâ€™%@ has a previous declaration as %Gâ€˜%@typedef  
> class _jarray* jarray%Gâ€™%@
> /usr/lib/gcc/i386-redhat-linux/4.1.2/../../../../include/c++/4.1.2/ 
> gcj/array.h:60: error: conflicting declaration %Gâ€˜%@typedef  
> class JArray<_jobject*>* jobjectArray%Gâ€™%@
> ...
>
> Seems like a bug somewhere in JCC.  On the other hand, I was able to
> build and install PyLucene with this JCC.  Any idea what's going on?

The error is pretty clear about what's going on. You're picking up a  
gcj header file. For instance, how many jni.h files are there on your  
system ?
In particular, is there one being picked up before the JDK's because  
it's in /usr/include or somesuch ?

Andi..

>
>
> Bill
>