Thanks you all. In fact, this is ghc >= 7.8.4 that I am missing. Will try to update to testing then. Thanks and happy Christmas! On Tue, Dec 22, 2015 at 7:59 PM, Ihor Kuz wrote:

With regards to the "best development environment”, personally I try to avoid installing the prerequisites into an existing working installation of Linux - every time I try I get dependency and version conflicts.

Instead I just make a dedicated virtual machine and install the dependencies in that - this avoids having to deal with multiple versions of tools for different projects, etc.

Of course not everyone likes working in a VM, so many people do install the prereqs natively, and it is possible. But it’s not for the faint of heart since you will inevitably have to deal with conflicts with tools already installed.

Another option is to look at using containers (like Docker) as a lighter weight option than a full VM.

In any case, for me, in a fresh Lubuntu 15.04 installation in VirtualBox, following the instructions on

https://github.com/seL4-projects/sel4-tutorials/blob/master/Prerequisites.md

gives a working set of tools to build and run the latest seL4/CAmkES.

Note, CAmkES also provides a dependency checker tool. Try running:

tools/camkes/tools/check_deps.py

Ihor

-- Dr. Ihor Kuz Senior Research Engineer | Trustworthy Systems

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On 22 Dec 2015, at 11:18 pm, Julien Delange wrote:

Dear all,

First of all, sorry if this question has been asked several times already. I am currently trying to use sel4 & camkes on a debian stable. I installed all the dependencies but I am facing an error message when trying to build the tool (see below). My version of cabal is 1.20, so, version should not be an issue.

After searching, it seemed that the version of ghc might be the root cause so I upgraded to testing and/or unstable but faced other issues then.

My question is then what is the best development environment to use sel4 and camkes? Any special recommendation? I would like to keep my existing debian/stable as much as possible.

Thanks for any help or suggestion,

Julien.

[parse-capDL] building... export CONFIG_CAPDL_LOADER_MAX_IRQS=256 && cabal configure && cabal build && cp dist/build/parse-capDL/parse-capDL . Resolving dependencies... cabal: The package 'capDL-tool' requires Cabal library version -any && =1.18 but no suitable version is installed. Makefile:45: recipe for target 'parse-capDL' failed make[1]: *** [parse-capDL] Error 1 Makefile:49: recipe for target '/home/julien/tmp/camkes/stage/arm/imx31/parse-capDL/parse-capDL' failed make: *** [/home/julien/tmp/camkes/stage/arm/imx31/parse-capDL/parse-capDL] Error 2

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