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How to add the Optimization parameter to javac, -O [message #165772]

Thu, 24 June 2004 16:33

Eclipse User

Originally posted by: ephedrine.rogers.com

Hi,

Sorry if this is in the wrong place - I would like to know how to add
the -O argument to javac so that it compiles with Optimizations. Anyone?

Cheers.
Alex

Re: How to add the Optimization parameter to javac, -O [message #165781 is a reply to message #165772]

Thu, 24 June 2004 17:54

Eclipse User

This flag is obsolete for a long time and neither javac nor Eclipse
support it.

(acutally javac simply ignores it for compatibility reasons).

Most of the modern code optimizations are performed in the virtual
machine (JVM) itself.

Genady

Lex wrote:

>Hi,
>
> Sorry if this is in the wrong place - I would like to know how to add
>the -O argument to javac so that it compiles with Optimizations. Anyone?
>
>Cheers.
>Alex
>
>
>
>

Re: How to add the Optimization parameter to javac, -O [message #165789 is a reply to message #165772]

Thu, 24 June 2004 16:54

Eclipse User

You are using javac via an Ant buildfile?
If you are using javac from an Ant buildfile, set the optimize attribute to
"on"

If you wish to configure the Eclipse compiler (which is not javac but an
internal implementation) see Window>Preferences>Java>Compiler

HTH
Darins

"Lex" <ephedrine@rogers.com> wrote in message
news:cbfdqi$c76$1@eclipse.org...
> Hi,
>
> Sorry if this is in the wrong place - I would like to know how to add
> the -O argument to javac so that it compiles with Optimizations. Anyone?
>
> Cheers.
> Alex
>
>

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