OSX Installation Problems

[rumrunner]

Hi, I am using an intel Mac with OSX 10.4.9. My system says that I already have Java installed (it supposedly includes the SDK). I downloaded the newest lejos verion (2.1.0) and renamed it lejos_nxt and put it in applications folder.

Tried the new instructions and got the error in terminal "invalid command." when I tried to download to the brick.

My PATH in tcsch looked like this: PATH=/bin:/sbin:/usr/bin:/usr/sbin
and that is not what I had typed in the file I created and saved to the disc.

Clearly I am doing something wrong. I have tried seceral times so I believe I followed the insructions exactly. I suspect somehow I have a problem with the apple installed java but don't know what to do next.

Has anyone had similar problems/ or have any ideas?

[bbagnall]

Hi there. I'm not a Mac expert so I can't really help. Although it's possible to use the Linux version of leJOS NXJ under Mac, you might want to wait on a dedicated Mac OS X build from someone (or a few someones actually). None of the main leJOS developers use Mac OS X but from what we're being told the build will be out shortly.

But if anyone out there who is a Mac OS X expert has managed to make a universal build (for Intel and PPC Macs) please step forward so we can release it to everyone.

[juliac]

I haven't gotten home to where I have my brick to test this. And I won't be home until late afternoon Pacific time, but this at least doesn't give link errors.

http://web.pdx.edu/~case/lejos/

Put the libjlibnxt.jnilib file in the $NXJ_HOME/bin directory (same place libjlibnxt.so is).

on top of the other variables you setup add

export DYLD_LIBRARY_PATH=$DYLD_LIBRARY_PATH:$NXJ_HOME/bin

This should let the programs find the library and run it. This is compiled for intel only.

You will also have to add a -u when you run the programs so it won't try to use the bluetooth.

I'll do my best to try and get the bluetooth and figure out how to make a universal binary.

I'm new to compiling for OS X (a long time Windows and Linux programmer). But at least this is a stop gap for some users.

Julia

[juliac]

I've put up modified build.xml scripts that will let you build the proper library for usb usage on OS X.

http://web.pdx.edu/~case/lejos/

Put the build.xml in the build sub directory in the build directory of the download. Put the build.xml in libnxt into the src/libnxt

Now go into the build director and type ant

See above post about setting the DYN_LIBRARY_PATH

This should build a proper library for your machine, but I've only tested it on an intel machine.

I'll keep working on trying to figure out the bluez stuff. I emailed the person who was listed as having done the OS X work in the past, bug have had no response yet. I'm doing the best I can.

Julia

[hhowe]

juliac,

When you said in your first post,

"on top of the other variables you setup add

export DYLD_LIBRARY_PATH=$DYLD_LIBRARY_PATH:$NXJ_HOME/bin "

Where does that go? Is that another command to put in the .tschr file, or does it go into some other file?

[juliac]

Actually I found you are best if you just run it from the shell when you are ready to do things with lejos. When I added it as part of normal operations it caused problems with other java programs. I'm going to mess around tonight and see if I can fix that.

School has been getting in the way of more hacking on my side. My research abstract has to be turned in soon.