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List:       sapdb-general
Subject:    R: I cannot reach libSQLDBC.so
From:       "Alexio Cassani" <cassani () webscience ! it>
Date:       2004-04-29 16:41:21
Message-ID: 40318639007BAD36 () ms007msg ! mail ! fw (added by postmaster () fastwebnet ! it)
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Hi Alexander,
I've tried with the static lib but I'm getting the same error... 

Any other suggestion?

Hi Alexander,
I've re-builded my sourcecode with the following command:
gcc -shared -o libMyLib.so -I/home/myUser/sapdb-linux/incl -I/usr/lib/j2sd
k1.4.2/include -I/usr/lib/j2sdk1.4.2/include/linux
/home/myUser/sapdb-linux/lib/libSQLDBC.a MyApp.cpp

But I got the same error... maybe the static library presents the same
problem of the dynamic one?

TIA
Alexio

> -----Messaggio originale-----
> Da: Schroeder, Alexander [mailto:alexander.schroeder@sap.com] 
> Inviato: giovedì 29 aprile 2004 14.52
> A: 'Alexio Cassani'; maxdb@lists.mysql.com
> Oggetto: RE: I cannot reach libSQLDBC.so
> 
> Hello Alexio,
> 
> A look into that SQLDBC package did show me that the linux 
> shared library is missing some essential symbols (and thus 
> will not work). 
> 
> Until we make a more recent SQLDBC package available, your 
> only chance is in using the static library that's also in the 
> package, and apparantly contains all objects.
> 
> So change in your compilation
> 
> -L/home/myUser/sapdb-linux/lib -lSQLDBC
> 
> to
> 
> /home/myUser/sapdb-linux/lib/libSQLDBC.a
> 
> Sorry for any inconvenience caused
> 
> Alexander Schröder
> SAP DB, SAP Labs Berlin 
> 
> > -----Original Message-----
> > From: Alexio Cassani [mailto:cassani@webscience.it]
> > Sent: Wednesday, April 28, 2004 4:07 PM
> > To: maxdb@lists.mysql.com
> > Subject: I cannot reach libSQLDBC.so
> > 
> > 
> > Hi,
> > I'me developing a C++ library .so that will be installed on a Linux 
> > box.
> > 
> > The step I've followed are:
> > 
> > 1) Wrote a C++ code
> > 2) Copied the libSQLDBC.o and libSQLDBC.a in /lib and /usr/lib
> > 3) Compiled my code with the following command: 
> > gcc -shared -o libMyLib.so -I/home/myUser/sapdb-linux/incl 
> > -I/usr/lib/j2sdk1.4.2/include -I/usr/lib/j2sdk1.4.2/include/linux
> > -L/home/myUser/sapdb-linux/lib -lSQLDBC myLibSourceCode.cpp
> > 4) As my library is accessed through a Java Native Interface the 
> > running command is the following:
> > java -cp myJavaApp.jar:junit.jar myJavaAppTest (it's junit 
> class test) 
> > The output is the following:
> > 
> > testMethod(myJavaAppTest)java.lang.UnsatisfiedLinkError:
> > /home/myUser/libMyLib.so: /home/myUser/libMyLib.so: 
> undefined symbol:
> > _ZN6SQLDBC16GetClientRuntimeEPci
> >         at java.lang.ClassLoader$NativeLibrary.load(Native Method)
> >         at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1560)
> >         at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1456)
> >         at java.lang.Runtime.load0(Runtime.java:737)
> >         at java.lang.System.load(System.java:811)
> >         ...
> > 	  ...
> > 
> > I've tried to compile and execute the HelloWorld application I've 
> > found in the sapdb-sqldbc-linux-32bit-i386-7_4_4_3beta.tgz archive 
> > (the libSQLDBC.so and .a I'm using are in this tgz) and the 
> error is 
> > similar.
> > Moreover the
> > original version of this code was developed under Windows 
> (instead of 
> > a .so there is, obviously, a dll) and it works fine.
> > The system on which I'm developing/testing is a Debian and 
> the SapDB 
> > which I should connect to is a 7.4.03
> > 
> > Any suggestion?
> > 
> > TIA
> > Alexio
> > 
> > 
> > --
> > MaxDB Discussion Mailing List
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> 
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> 


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