'atomic' header not found when comiling Odin about odin HOT 6 CLOSED

this package is already installed on my system but it still doesn't work :( i've checked where the atomic header is located in the docker image : /usr/include/c++/13/atomic It is present at the same location on my linux distro, i don't understand...

Looking into it some more it seems you should run clang++ -v to find out which version of GCC it wants to use and install the corresponding libstd++-dev package for that. On my system (Ubuntu 22.04) that was version 12:

$ clang++ -v
...
Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/11
Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/12
Selected GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/12

Note that this is indeed gcc-12 and not g++-12 as I don't have g++-12 installed on my system and I can build the compiler just fine.

from odin.

Looks like a typo on the "Getting Started" page. The package you're actually looking for is libstdc++-12-dev, i.e. without the "x32" in the name.

from odin.

this package is already installed on my system but it still doesn't work :(
i've checked where the atomic header is located in the docker image :
/usr/include/c++/13/atomic
It is present at the same location on my linux distro, i don't understand...
it's not a big deal for me because i can use the version i've built using docker, but it could maybe be useful to find the reason for other users ?

from odin.

I've had the same issue on Mint. I fix it by installing libc++-dev and g++-12.

from odin.

clang++ -v returned this :

Selected GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/14

I installed libstdc++-14-dev, and now it works, thank you !!

from odin.

Hello,

In Linux OpenSuse Tumbleweed with LLVM 18, if it gives us the following error:

In file included from src/main.cpp:2:
src/common.cpp:30:10: fatal error: 'atomic' file not found
   30 | #include <atomic> // Because I wanted the C++11 memory order semantics, of which gb.h does not offer (because it was a C89 library)
      |          ^~~~~~~~
1 error generated.
make: *** [Makefile:10: debug] Error 1

We have to issue the following command

clang++ -v

(base) joaocarvalho@soundofsilence:~/odin/Odin> clang++ -v
clang version 18.1.5
Target: x86_64-suse-linux
Thread model: posix
InstalledDir: /usr/bin
System configuration file directory: /etc/clang
User configuration file directory: /home/joaocarvalho/.config/clang
Found candidate GCC installation: /usr/bin/../lib64/gcc/x86_64-suse-linux/12
Found candidate GCC installation: /usr/bin/../lib64/gcc/x86_64-suse-linux/13
Found candidate GCC installation: /usr/bin/../lib64/gcc/x86_64-suse-linux/14
Selected GCC installation: /usr/bin/../lib64/gcc/x86_64-suse-linux/14
Candidate multilib: .;@m64
Selected multilib: .;@m64

We then see that it is the gcc 14 that is in use by clang++ and then we have to install the corresponding gcc version of the libstdc++ :

OpenSuse Tumbleweed compilation of Odin with llvm 18 I had to install:

libstdc++6-devel-gcc14

do:

sudo zypper install libstdc++6-devel-gcc14

then do again:

make

Note: This was made ( solved ) according the current thread and from the help of Jason and Layton:

'atomic' header not found when comiling Odin #3376
#3376

Thank you very much Jason,
and thank you very much Laytan!

Best regards,

from odin.