FWIW the CMake folk actually document this [0]. Having said that, it seems numerous CMake users find this behaviour surprising [1] and I can certainly attest to having tripped over it before. [0]: https://gitlab.kitware.com/cmake/community/wikis/FAQ#i-run-an-out-of-source-... [1]: https://stackoverflow.com/questions/9680420/looking-for-a-cmake-clean-comman...
On Jun 24, 2019, at 12:14, Chris Guikema <Chris.Guikema@dornerworks.com> wrote:
Hello Amit,
A CMakeCache.txt file can get accidentally created quite easily. I reproduced the issue by running "ccmake .." to pull up the interactive GUI in the top level directory instead of a build folder.
chrisguikema@ubuntu ~/seL4/camkes-vm $ ls camkes_README.md CMakeLists.txt init-build.sh kernel projects README.md test tools
CMake Error: The source directory "/home/chrisguikema/seL4/" does not appear to contain CMakeLists.txt. Specify --help for usage, or press the help button on the CMake GUI.
chrisguikema@ubuntu ~/seL4/camkes-vm $ ls camkes_README.md CMakeFiles kernel README.md tools CMakeCache.txt CMakeLists.txt init-build.sh projects test
The easiest solution is to just delete the file. It shouldn't just appear, except by mistake.
-----Original Message----- From: Devel <devel-bounces@sel4.systems> On Behalf Of Amit Goyal Sent: Monday, June 24, 2019 3:05 PM To: Aditya Upadhyay <aadit0402@gmail.com> Cc: devel@sel4.systems Subject: Re: [seL4] CMake Error
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Hi All,
Somehow a file named CMakeCache.txt came into my top level directory. I removed that file and ran the init script. It is working fine now. Is this file created intentionally or is it some bug?
-- Thanks and Regards, Amit Goyal
On 2019-06-20 10:16, Aditya Upadhyay wrote:
Earlier I was facing similar issue. But solved by updating gcc 4.8 to gcc 7.4. $ sudo apt-get install --reinstall gcc
P.S. I am also a newbie in this seL4 thing.
On Thu, Jun 20, 2019 at 5:01 AM Mcleod, Kent (Data61, Kensington NSW) <Kent.Mcleod@data61.csiro.au> wrote:
Is there a kernel folder in the directory above your build directory, adjacent to the init script that you are calling? Can you instead try running ./init --plat pc99 --tut hello-camkes-2 --solution in the top directory of the project. It will create a build directory for you.
Could not find toolchain file: ../kernel/gcc.cmake Call Stack (most recent call first): CMakeLists.txt
CMake Error: CMake was unable to find a build program corresponding to "Ninja". CMAKE_MAKE_PROGRAM is not set. You probably need to select a different build tool. CMake Error: CMAKE_C_COMPILER not set, after EnableLanguage CMake Error: CMAKE_CXX_COMPILER not set, after EnableLanguage
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