[Bug java/45433] Can't find GCCMain in org.eclipse.jdt.internal.compiler.batch.GCCMain

[bruno at clisp dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=45433

Bruno Haible <bruno at clisp dot org> changed:

           What    |Removed                     |Added
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                 CC|                            |bruno at clisp dot org

--- Comment #3 from Bruno Haible <bruno at clisp dot org> ---
(In reply to Jakub Jelinek from comment #2)
> You need to read the documentation, which would tell you you need to use
> -fmain=HelloWorld option.

It is true that -fmain=HelloWorld was missing in the reporter's command line.
But if that had been the only problem, the error message would have been

(.text+0x18): undefined reference to `main'

not

Exception in thread "main" java.lang.NoClassDefFoundError:
org.eclipse.jdt.internal.compiler.batch.GCCMain

The error message "java.lang.NoClassDefFoundError:
org.eclipse.jdt.internal.compiler.batch.GCCMain" means that the ecj1 program
cannot find the org.eclipse.jdt.internal.compiler.batch.GCCMain class, which it
expects to find in the jar file specified through the --with-ecj-jar option.

So, the reporter's real problem was that he configured GCC with a
--with-ecj-jar option without argument.