Unable to compile java file with gcj 4.1.1: undefined reference to main

[Stephen Torri]

On Tue, 2007-02-27 at 10:03 +0000, Andrew Haley wrote:
> Stephen Torri writes:
>  > I am having trouble building a java file with gcj. If I attempt to build
>  > it from the obfuscated class file (a.class) I get the error message:
>  > 
>  > storri@base$ gcj a.class
>  > /usr/lib/gcc/i686-pc-linux-gnu/4.1.1/../../../crt1.o: In function `_start':
>  > init.c:(.text+0x18): undefined reference to `main'
>  > collect2: ld returned 1 exit status
>  > 
>  > So I though okay I will let gcj reading the straight Java source file. I
>  > get the same error message. Given the source file below is there any
>  > reason why GCJ cannot compile it?
> 
> Works for me:
> 
> zorro:~ $ gcj Fibonacci.java --main=Fibonacci
> zorro:~ $ ./a.out 6
> Calculated fibonacci number: 8
> Calculated fibonacci number: 5
> Calculated fibonacci number: 3
> Calculated fibonacci number: 2
> Calculated fibonacci number: 1
> Calculated fibonacci number: 1
> Calculated fibonacci number: 0

Ah. Thanks for the hint on using --main. I did not think to use that
since I never had to do that for a C/C++ program. Now I am back into to
business.

Stephen