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verwilst
n00b
Joined: 16 Apr 2002
Posts: 30
Location: Belgium, Gent
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 Posted: Mon Jul 01, 2002 11:04 am Post subject: GCC 3.x and Java: how you can help :o) |
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Hellow, read the following, and if you can/feel like it, feel free to give em your (non-abusive) opinion about this on the listed sun.com URL..
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Bitch here about it:
http://developer.java.sun.com/developer/bugParade/bugs/4694590.html
"Thanks very much for the comments here and on JavaLobby.
Just want to let you know that we are well aware of the
compatibility issues surrounding different gcc versions.
The problem is that the C++ ABI keeps changing between
different versions of gcc. If we move to use gcc-3.1 to
build JDK (in fact, 1.4.1 source has been cleaned for the
new gcc), it will not work with many existing applications
(e.g. plugin will not work on mozilla). That would be
unacceptable to many other folks who still rely on the old
system.
That being said, we are surely trying to find a release as
the candidate for the transition to gcc-3.x. It would depend
on how fast the community is switching to gcc-3.x. Right
now, we are looking at 1.4.2 being the transition release.
If you feel strongly 1.4.1 should be the one (btw, 1.4.1
beta is just released today), please share your thoughts
here. We'd love to hear.
Just a note on statically linking libstdc++. Yes, that will
solve the dependence on libstdc++-libc6.1-1.so.2, and we
are doing this for 1.4.1. But keep in mind that could
cause other problems, as you might end up having two
incompatible C++ runtime in the memory. That isn't healthy.
Again, thanks for all the comments and suggestions."
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Bart Verwilst
Gentoo Linux Developer
Gent, Belgium |
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Scandium
Retired Dev
Joined: 22 Apr 2002
Posts: 340
Location: Germany
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| Posted: Mon Jul 01, 2002 11:11 am Post subject: |
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why force anybody on using gcc 3.x ?
If you are a java developer it doesn't matter wether it is compiled with gcc 3.x or 2.95, does it ?!
And after all they say they like to use it but there are problems - it would be something else if they said they won't use gcc 3.x before 3.4 or so...
Again, perhaps I don't understand the situation here but pls don't blame me  |
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verwilst
n00b
Joined: 16 Apr 2002
Posts: 30
Location: Belgium, Gent
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| Posted: Tue Jul 02, 2002 12:26 am Post subject: |
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The problem is that users with gcc 3.1 can't use java because it's compiled on gcc 2.95.x systems, and sun needs to compile their jre/jdk with gcc 3.1 to enable our gentoo 1.3 users to use java
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Bart Verwilst
Gentoo Linux Developer
Gent, Belgium |
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trapni
Retired Dev
Joined: 16 May 2002
Posts: 251
Location: Germany/Berlin
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| Posted: Tue Jul 02, 2002 12:48 am Post subject: |
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Well, these are really very nice news to me *peep*. I can't see Java Applets in Konqueror and can't run Flash either.....
That's all?  |
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petecool
n00b
Joined: 17 Apr 2002
Posts: 11
Location: Laval, Québec, Canada
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| Posted: Tue Jul 02, 2002 2:26 am Post subject: |
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| Can't they see another possibility? Releasing two sets of binaries, one built with gcc2.95.x and one built with gcc3.1+ would solve all this: make java work on newer/bleeding edge distros, and wouldn't force anybody that uses gcc2.95.x to build their distro (everybody else?) to upgrade to gcc3.1+ |
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mkennedy
Retired Dev
Joined: 30 May 2002
Posts: 35
Location: Texas
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| Posted: Tue Jul 02, 2002 4:41 am Post subject: |
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| Scandium wrote: | why force anybody on using gcc 3.x ?
If you are a java developer it doesn't matter wether it is compiled with gcc 3.x or 2.95, does it ?! |
Hi, actually... yes. It does matter. Basically anything JNI which has to compile on gcc3.1 will not be compatible with the JVM at run time. That goes for applet in Mozilla etc.
Remember: GCC 2.95.3 is a full 2 releases behind gcc3.1. It is OLD! Are the GCC developers fixing bugs for 2.95.3? I think not.
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Bugs go in Bugzilla! |
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Scandium
Retired Dev
Joined: 22 Apr 2002
Posts: 340
Location: Germany
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| Posted: Tue Jul 02, 2002 9:21 am Post subject: |
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ah ok, didn't know that...Now I know it but I don't understand
If they compile it with 2.95 and I use it (it's already binary) and then I
javac myproject.java
that hasn't too much to do with _my_ gcc ?
----
okok, it's morning now I got it |
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trapni
Retired Dev
Joined: 16 May 2002
Posts: 251
Location: Germany/Berlin
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| Posted: Tue Jul 02, 2002 3:02 pm Post subject: |
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| Scandium wrote: | ah ok, didn't know that...Now I know it but I don't understand
If they compile it with 2.95 and I use it (it's already binary) and then I
javac myproject.java
that hasn't too much to do with _my_ gcc ?
----
okok, it's morning now I got it |
But the javac and java commands are linked against glibc and more wich are (@least in my case) compiled against gcc3.1. So exactly these libraries are binary incompatible to the one produced using gcc2.x. So you simply can't execute java and javac.
Greets,
Christian Parpart. |
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