The order in which the environment variables are applied can cause problems.

For example, say you set in control panel these variables:
JRUBY_HOME=c:\jruby
PATH=%JRUBY_HOME%\bin;c:\windows\system32

Then depending on the order they're applied, you can end up with path variable containing either
PATH=c:\jruby\bin;c:\windows\system32
or PATH=%JRUBY_HOME%\bin;c:\windows\system32

The first of these works as expected, the second one doesn't, as the path variable has to contain the expanded form.

Cheers,
Robert


Eric Armstrong wrote:
On windows, there are a couple of useful notes to add:

  * To set environment variables and the path on XP:
     Start -> Control Panel -> System
     Advanced tab
     Environment Variables button

  * JRUBY_HOME is accessed as %JRUBY_HOME%

But I'm still weirded out. Even though my path shows
%JRUBY_HOME%\bin, executing "jruby" produces "not a
command". I would have sworn the path worked better
than that. What have I forgotten?

Charles Oliver Nutter wrote:
Useful info, thanks! We'll update README for RC3 with this stuff.

Mike McKinney wrote:
P.S.

Shouldn't the following be placed in the Readme file somewhere?

 Environment Variable Prequisites:

JRUBY_BASE (Optional) Base directory for resolving dynamic portions
                 of a JRuby installation.  If not present, resolves to
                 the same directory that JRUBY_HOME points to.

   JRUBY_HOME    (Optional) May point at your JRuby "build" directory.
If not present, the current working directory is assumed.

   JRUBY_OPTS    (Optional) Default JRuby command line args.

   JAVA_HOME     Must point at your Java Development Kit installation.



On 5/30/07, * Mike McKinney* <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>> wrote:

    Just downloaded the binary distro...

    README file contains the following line:

Project Contact: Thomas E Enebo < [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>>

Does he respond to that email address anymore? (shouldn't it read Sun?)

    Just checking...

    Mike McKinney





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