Linux or DOS javac?

[Mark Himsley]

--On 19 May 2003 20:55 +1000 Robert Mark Bram <relaxedrob@optusnet.com.au> 
wrote:

> Howdy All!
>
> I have found out that when I compile java code in cygwin, I have to make
> sure that my classpath and file names are in DOS format. For example;
>
> CLASSPATH=".;C:\temp" javac "C:\temp\AuctionEntryImpl.java"
>
> I believe this is required because the javac that is being used is a
> DOS/Windows javac and the file paths are translated.

True.

> My problem is that I am trying to install the Janos nodeos which has a
> large set of build scripts that require Linux like paths, not DOS. My
> reason for saying this is because I am getting error messages like this:
>
> error: cannot read:
> /cygdrive/c/java/jnodeos-20020317/src/nodeos/Address.Java
>
> I take this to mean that the script is building Linux paths which are not
> understood by the DOS javac.

True.

> If I have assumed correctly so far, can I download a Linux/Unix javac and
> will it use the Linux paths ok?

You say "download". Yes, of cause you can download a Linux/Unix Javac - 
just don't expect it to actually WORK on Windows. Remember, Cygwin is just 
a layer on top of Windows. You cannot run Linux binaries on Windows by 
using Cygwin.

> I have examined some of the build scripts - it is not easy to change how
> they deal with paths because they do a lot sed operations (for example)
> and heaps of variable substitutions as part of their sanity checks.

I would have guessed, without looking at all, that there are very few 
invocations of Javac. Leave the sed/variable substitution alone and look at 
patching the actual invocation of Javac with `cygpath -w "$directory"` and 
`cygpath -w -p "$CLASSPATH"`.

Good luck.

-- 
Mark Himsley




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