[fedora-java] Default java.library.path in Fedora

[Andrew Haley]

On 28/03/11 12:23, Mat Booth wrote:
> On 28 March 2011 12:08, Andrew Haley <aph at redhat.com> wrote:
>> On 26/03/11 18:34, Mat Booth wrote:
>>> In F14's OpenJDK, the default java.library.path currently does not
>>> include /usr/local/lib or /usr/local/lib64 so if a third party JNI
>>> library installs itself into one of those directories then the JVM
>>> will not know about it.
>>>
>>> Is this a bug? I think it would be appropriate if /usr/local/lib and
>>> /usr/local/lib64 were included in the default java.library.path
>>
>> I wouldn't have thought so.  /usr/local/lib isn't really standard for
>> anything.  Even if we could patch OpenJDK to do this, the third party
>> apps would immediately break with any other JRE.
>>
>> Doesn't it make more sense for the app to know where its native library
>> is, and load it from the right place?
> 
> I would rather the app not have to care where the libraries are, but
> for some odd reason the autotools in Fedora uses a default prefix of
> /usr/local rather than /usr
> 
> If this is not a standard location then maybe this is an autotools
> bug? I shouldn't have to tell the autotools where it is appropriate to
> install things for the operating system it ships with :-/

I think autotools has done this since the year dot.  It's not going to
change now.

> Either way, I expect the default settings to just work.

This isn't just a Fedora problem.  Finding JNI libraries is a PITA in
general, and patching OpenJDK to do something different from every other
JRE isn't a good idea.  I'm not at all sure it makes sense to fix this
locally in Fedora.  We'd want to make sure this is fixed for all GNU/
Linux systems, everywhere.

Andrew.