GCJ error compiling classes

[Michael Koch]

On Sun, Apr 17, 2005 at 08:54:21PM +0100, tt tt wrote:
> Apologies if this is the wrong list but I am
> completely stumped on this one!
> 
> I have been using javac (from the sun sdk) for a while
> now and it compiles my code fine. I have decided to
> give gcj a go but am receiving the following error
> message when compiling and using extra classes:
> 
> TestMySQL.o(.text+0x6e8): In function
> `TestMySQL::main(JArray<java::lang::String*>*)':
> /home/bob/p1/TestMySQL.java:134: undefined reference
> to `Job::class$'
> TestMySQL.o(.text+0x6f5):/home/bob/p1/TestMySQL.java:134:
> undefined reference to `Job::Job()'
> collect2: ld returned 1 exit status
> 
> 
> Contents of Class File:
> 
> class Job {
>  public String  job_id;
> }
> 
> Code line which failes in TestMySQL.java:
> 
> Job = new Job();
> 
> Compile options:
> 
> gcj -c -g -O TestMySQL.java <-- this line works fine
> gcj --main=TestMySQL -o TestMySQL TestMySQL.o

You need to compile and link all classes explicitely.

Use this:

gcj -c -g -O TestMySQL.java
gcj -c -g -O Job.java
gcj --main=TestMySQL -o TestMySQL TestMySQL.o Job.o

> 
> Both files are in the same directory.
> 
> Any ideas? Am I using the correct compile options? I
> am running gcc 3.4.3 on gentoo. All compiles and
> workds fine with javac


Michael
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