Re: java and Ubuntu 12

[Ben Abbott]

On Nov 26, 2012, at 1:02 PM, Alexander Hansen wrote:

> On 11/26/12 10:48 AM, Daniel J Sebald wrote:
> 
>> On 11/26/2012 11:09 AM, Ben Abbott wrote:
>>> 
>>> On Nov 26, 2012, at 11:29 AM, Michael D. Godfrey wrote:
>>> 
>>>> On 11/26/12 4:16 PM, Ben Abbott wrote:
>>>>> OpenJDK Java 7 Runtime
>>>> I think you need the devel package from:
>>>> 
>>>>     Debian, Ubuntu, /etc./
>>>> 
>>>> On the command line, type:
>>>> 
>>>>   *$* sudo apt-get install openjdk-7-jre
>>>> 
>>>> The |openjdk-7-jre| package contains just the Java Runtime
>>>> Environment. If you want to develop Java programs then install the
>>>> |openjdk-7-jdk| package.
>>>> 
>>>> These names do not quite match what you said, but something with
>>>> -jdk or -devel is where the headers are.
>>>> 
>>>> Michael'
>>> 
>>> I already have all the openjdk-7 packages installed.
>>> 
>>> $ apt-cache pkgnames | grep jdk-7
>>> openjdk-7-jre-headless
>>> openjdk-7-source
>>> openjdk-7-jre-zero
>>> openjdk-7-demo
>>> openjdk-7-dbg
>>> openjdk-7-doc
>>> openjdk-7-jdk
>>> openjdk-7-jre
>>> openjdk-7-jre-lib
>>> 
>>> $ apt-cache --installed pkgnames | grep jdk-7
>>> openjdk-7-jre-headless
>>> openjdk-7-source
>>> openjdk-7-jre-zero
>>> openjdk-7-demo
>>> openjdk-7-dbg
>>> openjdk-7-doc
>>> openjdk-7-jdk
>>> openjdk-7-jre
>>> openjdk-7-jre-lib
>>> 
>>> Ben
>> 
>> Those are all runtime environment files.  The Octave java tools need the
>> "development kit" or JDK part of things, i.e., the part that creates the
>> byte code that can run within the JRE.  Look for the RPM (or whatever is
>> the equivalent) with openjdk Development Kit.
>> 
>> Dan
> 
> I'm seeing "openjdk-7-jdk" in Ben's list, and searching the online file
> database rather than my local machine, I found the following:
> 
> $ apt-file find jni.h
> ...
> openjdk-7-jdk: /usr/lib/jvm/java-7-openjdk-amd64/include/jni.h
> 
> So it's probably just a matter of setting paths appropriately.

I didn't know about apt-file.  That's a nice feature.

        $ apt-file find jni.h | grep jdk-7
        openjdk-7-jdk: /usr/lib/jvm/java-7-openjdk-i386/include/jni.h

With ...

        export JAVA_CPPFLAGS=/usr/lib/jvm/java-7-openjdk-i386/include
        export JAVA_HOME=/usr/lib/jvm/java-7-openjdk-i386/bin

My build still fails.  My Makefile contains ...

        JAR =
        JAVA = /usr/bin/java
        JAVAC =
        JAVA_CPPFLAGS = -I/usr/lib/jvm/java-7-openjdk-i386/include
        JAVA_LIBS =

Suggestions?

Ben