[Tinyos-help] Cannot find java and javac - java tools not compiled

[Michael Schippling]

Excellent reverse engineering!!

I'm sure there is a good reason for using such a convoluted technique
and perhaps someday someone will figure out what it is...

down the garden PATH again
MS


Mr. Jonathan A. Gomez wrote:
> On Friday 08 December 2006 15:34, Michael Schippling wrote:
>> That's....odd. I wonder if rpm is trying to use some (stupid)
>> java control panel app to find the programs. In any case it
>> should be possible to go back and manually make the tools
>> directory after the smoke clears.
> 
> Looking at the package, there is a script called locate-jre ( 
> tools/scripts/locate-jre ).  Perhaps this is used to locate the JDK?
> 
> As far as I can tell, if it detects cygwin (using uname), then it uses 
> the registry to find java:
> 
> Here's the excerpt of the script:
> 
> case `uname` in
>   CYGWIN*)
>         # Hopefully this will always work on cygwin with Sun's Java
>         jversion=`regtool -q get '\HKLM\SOFTWARE\JavaSoft\Java 
> Development Kit\CurrentVersion'`
>         if [ $? != 0 ]; then
>             exit 1
>         fi
>         jhome=`regtool -q get '\HKLM\SOFTWARE\JavaSoft\Java Development 
> Kit\'$jversion'\JavaHome'`
>         if [ $? != 0 ]; then
>             exit 1
>         fi
>         jhome=`cygpath -u "$jhome"`
>         ;;
> 
> -- tinyos-1.1.10Jan2005cvs-1.noarch.rpm (inside: 
> opt/tinyos-1.x/tools/scripts/locate-jre)
> 
> I'm thinking it might be expecting WINDOWS-style Java to be installed, 
> based on the registry use and the reference to JavaSoft.  You could 
> theoretically fill in the registry values or (see below) perhaps 
> extract the files without using rpm and fiddle with the scripts.
> 
> If you'd like to extract the files, to look at them, you might be able 
> to get away with using rpm2targz to convert it to a tar archive (don't 
> know if it runs on cygwin).  See 
> http://www.slackware.com/config/packages.php
> 
> 
> 
> I neither use CYGWIN nor RPMs, so I may be wrong.
> -- Jon.
> 
> P.S.: Grep gives: 
> tinyos-1.x/tools/java/jni/Makefile:JAVAC_DIR=$(shell ../../scripts/locate-jre --javac)
> 
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