internal compiler error: can't find class$

Thu Sep 2 19:07:00 GMT 2004

Thomas LÃ©autÃ© writes:
 > 
 > Le Sep 2, 2004, Ã  11:45 AM, Andrew Haley a Ã©crit :
 > 
 > > There is a ton of different things that might cause this.
 > >
 > > Please let us know what commands you used to compile the files, and
 > > exactly what versions of the tools you used.
 > 
 > OK; I have just re-implemented completely in java the class "coutUI" 
 > (now called "simpleUI"), and now the error message comes up during the 
 > linking phase:
 > 
 > > /usr/bin/ld: Undefined symbols:
 > > simpleUI::class$
 > > simpleUI::simpleUI()
 > 
 > You can see that it does not find the constructor either.
 > I did the following:
 > 
 > > gcj -C -classpath ./or124.jar:. *.java
gcj -c -classpath ./or124.jar:. *.java
 > > gcjh simpleUI
 > > g++-3.5 -c main.cpp
 > > g++-3.5 -o test main.o -lgcj
You need to add the .o files created by "gcj -c"
 > (or124.jar is a package used by the BlueNode class)
So you should compile that as well:
gcj or124.jar -o or124.o
and link at the end with or124.o.
It's quite easy really: compile *everything* with -c, whether C++ or
Java, and then link the reulting .o files together.
 > g++-3.5 --version returns:
 > 
 > > g++-3.5 (GCC) 3.5.0 20040613 (experimental)
 > 
 > This is a version I got from Gaurav Khanna, the author of the following 
 > web page: http://hpc.sourceforge.net/ . The web page says: " recently 
 > compiled using source code from the GNU CVS servers, tree-ssa 
 > lno-branch".
 > 
 > Note that I also get the following error:
 > 
 > > /usr/bin/ld: warning multiple definitions of symbol _sqrt
 > > /usr/local/lib/gcc/powerpc-apple-darwin6.8/3.5.0/../../../ 
 > > libgcj.a(w_sqrt.o) definition of _sqrt in section (__TEXT,__text)
 > > /usr/lib/libSystem.dylib(sqrt970.o) definition of _sqrt
I don't know why the linker is complaining about that. It finds a
definition of _sqrt in libgcj.a, so it shouldn't care that there is
also one in libSystem.dylib. I vaguely remember this to be some sort
of bug in Darwin's linker.
Andrew.