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From: Per Bothner <per@bothner.com>
To: Damien MATTEI <Damien.Mattei@unice.fr>
Cc: Kawa mailing list <kawa@sourceware.org>
Subject: Re: kawa lib and jdk version
Date: Mon, 02 May 2016 14:27:00 -0000	[thread overview]
Message-ID: <572763D6.70209@bothner.com> (raw)
In-Reply-To: <201605021222.12586.Damien.Mattei@unice.fr>



On 05/02/2016 03:22 AM, Damien MATTEI wrote:

> i had made few attemps to work with jdk7,unfortunately it complains about a major version of 51 (my platform) instead of 52 (kawa)
> so i will use jdk8 where all is ok ,it's just that where i work servers are under jdk7 but i hope it will be upgraded soon

That is why you have to compile Kawa with '-target 7', so that javac with generated classfile version 51.

I just did a test - you actually also have to specify -source 7.  The following works:

$ JAVAC='javac -source 7 -target 7' ./configure --with-java-source=7 ...other-options...
$ make all

Then I was able run the resulting kawa.jar on java 7.

Of course this assuming you're using the JDK 1.8 to "cross-compile" Kawa so
the result can be used on JDK 1.7.
If you're using JDK 1.7 to build Kawa, it should just work.
-- 
	--Per Bothner
per@bothner.com   http://per.bothner.com/

  reply	other threads:[~2016-05-02 14:27 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-04-29 13:48 Damien Mattei
2016-04-29 15:53 ` Per Bothner
2016-05-02 10:22   ` Damien MATTEI
2016-05-02 14:27     ` Per Bothner [this message]
2016-05-03  9:30       ` Damien MATTEI

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