Re: Overhaul of Java auto-detection

[Ben Abbott]

On Dec 10, 2012, at 4:20 PM, Rik wrote:

> 12/10/12
> 
> All,
> 
> I just pushed a changeset which significantly changes (improves?) the way
> Java is detected if JAVA_HOME has not been set
> (http://hg.savannah.gnu.org/hgweb/octave/rev/56239ff815a3).  There are
> likely to be kinks which need working out and I particularly need feedback
> from Mac OS X systems.  Despite all those caveats, I think this is a much
> better strategy for detection than having a laundry list of directories to
> check for each operating system and distribution.
> 
> --Rik

Hi Rik,

Definitely broke builing on MacOS X.

Prior to your change, the Java stuff was configured as ....

  Java home:                   /System/Library/Frameworks/JavaVM.framework/Home
  Java arch:                   
/System/Library/Frameworks/JavaVM.framework/Libraries/libjvm_compat.dylib
  Java CPPFLAGS:               
-I/System/Library/Frameworks/JavaVM.framework/Home/include
  Java libraries:              -framework JavaVM

"Java home" is a symbolic link.

$ ls -l /System/Library/Frameworks/JavaVM.framework/Home
lrwxr-xr-x  1 root  wheel  24 Oct 21 20:46 
/System/Library/Frameworks/JavaVM.framework/Home -> Versions/CurrentJDK/Home

With your change, I get ....

  Java home:                   
/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
  Java JVM path:               
  Java CPPFLAGS:               
  Java libraries:              

$ ls -l  /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
total 8
drwxr-xr-x  41 root  wheel  1394 Oct 21 21:08 bin
lrwxr-xr-x   1 root  wheel     3 Oct 21 20:46 bundle -> ../
drwxr-xr-x  42 root  wheel  1428 Oct 21 21:08 lib
drwxr-xr-x  41 root  wheel  1394 Oct 21 21:08 man

Ben