On Sun, 27 May 2012, Steffen J. Smolka wrote:
I'm trying to get the Repository Version of Isabelle to run on Windows7 (64
Bit).
When executing
./bin/isabelle jedit
in cygwin, I get the following error:
### Building Isabelle/Scala layer ...
System\main.scala:28: error: object exit is not a member of package System
System.exit(rc)
^
one error found
Failed to compile sources
I've installed SUN JDK 1.6u32 (64 Bit) and Scala 2.9.2 final, the
ISABELLE_JDK_HOME and SCALA_HOME environment variables are set accordingly.
My .isabelle/etc/settings file looks like this:
init_component "/cygdrive/c/Isabelle2012/contrib/scala-2.9.2"
init_component "..../isabelle/jedit_build-20120414"
In principle it should work, but requires the usual manual fiddling to
build things from a repository version of Isabelle.
The above failures to compile look suspiciously like some misunderstanding
about the jdk or scala version being used, or old jars lying around in
Isabelle/lib/classes or Isabelle/src/Tools/jEdit/dist.
The general survival strategy is as follows:
* Try to avoid "using" repository versions in the first place. There
must be good reasons to invest the extra effort that is required to
follow the Isabelle development process in every step.
* The "nightly build" from http://isabelle.in.tum.de/devel/ already
includes Isabelle/Scala and Isabelle/jEdit prebuilt.
* If you still have do it yourself from the repository for strong
reasons, you should imidate the bundling of the latest official
release as closely as possibly, especially its jdk and scala
components, see the Isabelle2012/contrib directry.
On Cygwin you should also copy the exec_process-1.0 component from
Isabelle2012, otherwise external ATP processes by sledgehammer will be a
bit unstable.
Makarius
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