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From: Andrew Cagney <>
To: Mark Wielaard <>
Cc: frysk <>
Subject: Re: Add .jar-s instead of source directories to compile path.]
Date: Tue, 04 Dec 2007 15:00:00 -0000	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

Mark Wielaard wrote:
> Hi Andrew,
> On Mon, 2007-12-03 at 18:40 -0500, Andrew Cagney wrote:
>> This tweaks the way the compiler is run so that it is forced to look in 
>> .jars for pre-compiled .class files (and not accidently re-compile a 
>> .java file).  (tks to tromey for figuring out the problem).
>> With this in place, I'm able to built frysk on f8 with the 
>> --enable-jar-compile option.  That option enables the "faster" sequence 
>> .java->.class->.jar->.o vs the slower .java->.o path.  Going forward 
>> this option is likely to be made the default.
> Seems nice. time (../frysk/ --enable-jar-compile && make -j4)
> (x86_64, fedora 8, dual core 3.2Ghz) now takes:
> real    7m57.600s
> user    8m16.352s
> sys     2m8.085s
> That is almost half the time it takes without --enable-jar-compile.
I forgot to mention, since it always does a full re-compile, the results 
are more robust on >=f7 (where gcj's dependency mechanism is broken).



      reply	other threads:[~2007-12-04 15:00 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-12-03 23:40 Andrew Cagney
2007-12-04  9:05 ` Mark Wielaard
2007-12-04 15:00   ` Andrew Cagney [this message]

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