Re: New install, Java setup

[Brenden Towey]

On 10/6/2019 12:05 PM, PhilipNienhuis wrote:
> If you start up Octave you'll see some messages, esp. something like:
>
> =======================================================
> GNU Octave Version: 5.1.0 (hg id: d05d6eebde10)
> GNU Octave License: GNU General Public License
> Operating System: MINGW32_NT-6.1 Windows 7 Service Pack 1 x86_64
> =======================================================
>
> So what Octave mention here, also x64-86? or

Hi Philip, again thanks for sticking with this.

At start-up the terminal says:
========================
GNU Octave, version 5.1.0
Copyright (C) 2019 John W. Eaton and others.
This is free software; see the source code for copying conditions.
There is ABSOLUTELY NO WARRANTY; not even for MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  For details, type 'warranty'.

Octave was configured for "x86_64-w64-mingw32".
========================
Which looks like 64 bit to me.

> What does  "ver" in the terminal say?

"ver" gives 5.1.0 just as above, then a BIG dump of each loaded 
package.  Do you need the full list?


> And what does the Octave command
>
> __octave_config_info__.build_environment.CC
>
> tell you?

>> __octave_config_info__.build_environment.CC
ans = x86_64-w64-mingw32-gcc
>>

It's got me stumped, at least.  Right now I'm focused more on the 
discrepancies below, where Octave is apparently looking for "jvm.dll" in 
the path "C:\Program Files\Java\jdk1.8.0_131/jvm.dll" but the correct 
path is "C:\Program Files\Java\jdk1.8.0_131\jre\bin\server\jvm.dll"

It seems like if I could correct that one path variable it might start 
working.

More answers below on getenv, yes I have a JAVA_HOME set.

> >   >> javaObject ("java.lang.Double", 5.3)
> > error: javaObject: could not find library or dependencies: C:\Program
> > Files\Java\jdk1.8.0_131/jvm.dll
> >   >>
> >
> > I can manually verify that there's no "jvm.dll" in the JRE/bin
> > subdirectory.  There is a "java.dll" however, maybe recent releases have
> > switched names?  Also the path that Octave uses seems messed up, there
> > should be a "/bin" at the end.
> Yeah Octave looks in the wrong place.
> E.g. on my Windows 7 system I have the jvm.dll in
> C:\Program Files\Java\jre-10.0.2\bin\server\
> (64-bit Java)
>
> Do you have a JAVA_HOME setting in your environment? (that could screw up
> things.)
> What does the Octave command
>
> getenv ("JAVA_HOME")
>
> return?

Yes, definitely this is set.  Tomcat (another program I run on my 
workstation) requires it  It's:

>> getenv ("JAVA_HOME")
ans = C:\Program Files\Java\jdk1.8.0_131
>>

Which is the correct value for it to be set to.  Many programs and 
documentation, including documentation directly from Oracle, require 
JAVA_HOME to be set to the root of the JDK to be correct.

> > (So no top posting on this list?  That's different from most other lists
> > I'm on.  What about trimming quoted messages?  I personally don't need
> > to see every single message quoted in-line in an email.)
> It's the habit ("netiquette") here and on many many other mailing lists.
>
>
> I just adapt to the local habits.

It's fine I was just a little surprised.  Most (actually all) other 
lists I'm top post regularly.  No worries I will adapt!

B.