Compiling occi with Mingwstudio on Linux - Problem

Question

Hello,
I downloaded the oracle-instantclient-devel-10.2.0.1-1.i386.rpm and the oracle-instantclient-basic-10.2.0.1-1.i386.rpm, converted everything with alien to *.deb-Files and installed it on my debian-machine. Now I hoped to get a test programm compiled - but I don't have success. Code goes like that:
#include "oracle/occi.h"
using namespace oracle::occi;
Environment *env;
Connection *conn;
Statement *stmt;
void Mainform::OnButton1 (wxCommandEvent& event)
     env = Environment::createEnvironment (Environment::DEFAULT);
Environment::terminateEnvironment (env);
Everything will compile, when I put the /usr/include/oracle/10.2.0.1/client-Path as an additional include directory under Project Settings. But the linker hangs - it hangs because I have got no idea, what the settings are for the Linker libraries and the additional library path. Error message is llike this:
Linking...
/dateien/projects/oracletest/Release/mainform.o(.text+0x6ee): In function `Mainform::OnButton1(wxCommandEvent&)':
: undefined reference to `oracle::occi::Environment::createEnvironment(oracle::occi::Environment::Mode, void*, void* (*)(void*, unsigned), void* (*)(void*, void*, unsigned), void (*)(void*, void*))'
/dateien/projects/oracletest/Release/mainform.o(.text+0x7a7): In function `Mainform::OnButton1(wxCommandEvent&)':
: undefined reference to `oracle::occi::Environment::terminateEnvironment(oracle::occi::Environment*)'
collect2: ld returned 1 exit status
oracletest - 2 error(s), 0 warning(s)
Can anyone help me?

Answer 1

How does it stop? Do you get a NoClassDefFoundError? If that's so, then probably com.apache.crimson.parser.XMLReaderImpl is not on your classpath. Do you have the correct version of Crimson on your classpath?
By the way, do you really want to explicitly have your program use Crimson? The XML API was set up in such a way that it is possible to plug in different XML parsers, but using your code you bind your program to one specific parser. Try:
XMLReader xr = XMLReaderFactory.createXMLReader();
and set the system property "org.xml.sax.driver" to "org.apache.crimson.parser.XMLReaderImpl":
java -Dorg.xml.sax.driver=org.apache.crimson.parser.XMLReaderImpl myclass
Jesper