[Solved] Clang "-cc1" not recognized

jiehong · 2015-05-19 11:46:33

The clang front-end "-cc1" simply does not work. I have tested with clang 3.5 and 3.6.

 $ clang -cc1 --
clang: error: unknown argument: '-cc1'
clang: error: no input files

Same for some others:

clang: error: unknown argument: '-cl-kernel-arg-info'
clang: error: unknown argument: '-cl-std=CL1.2'
clang: error: unknown argument: '-triple'

Is that only me, or Archlinux's clang is acting weird?

Last edited by jiehong (2015-05-19 17:00:33)

WorMzy · 2015-05-19 14:51:20

Works for me, in the sense that it grabs stdin and tries to execute whatever I've typed when I press ctrl+d.

This cc1 switch doesn't appear to be documented in the man page though, and this page suggests that it's not supposed to be used directly:

Users should not run clang -cc1 directly, because -cc1 options are not guaranteed to be stable

Is this an X-Y problem? What are you trying to do?

I'm not sure why the -cc1 switch doesn't work for you, have you set up an alias? What does 'type clang' return?

Edit: Mod note: Moving to Programming and Scripting

Last edited by WorMzy (2015-05-19 15:12:27)

jiehong · 2015-05-19 16:29:37

XY problem: ok, my real problem is that I'm trying to compile a project that uses clang, and it fails.

However, the alias path was good, and I should have thought about that earlier.

Even though I haven't any alias set for clang for any user, nor any environment variable referring to clang, here is `type clang`:

clang is /usr/lib/hardening-wrapper/bin/clang

I don't know what is this "hardening-wrapper". I just tried with "/usr/bin/clang", and it works perfectly.

Do you also have this "hardening-wrapper" directory?

mauritiusdadd · 2015-05-19 16:43:42

That is provided by hardening-wrapper. As the description says, the package provides a simple wrapper scripts for building hardened executables by default.

-- edit: Sorry WorMzy, we posted at the same time

Last edited by mauritiusdadd (2015-05-19 16:47:04)

WorMzy · 2015-05-19 16:43:50

I don't use them myself, but the hardening-wrapper scripts are provided by the hardening-wrapper package.

If you didn't explicitly install this package yourself, presumably it was installed as a dependency (or more likely, a make dependency) for another package. Check with 'pacman -Qi hardening-wrapper', if it's not required by anything, then you can safely remove it.

Edit: Beaten by 8 seconds!

Last edited by WorMzy (2015-05-19 16:45:14)

jiehong · 2015-05-19 17:00:06

You are right! I think it was installed for building `mpv`.

I'll be a bit more careful next time

Thanks again both of you!

Arch Linux

#1 2015-05-19 11:46:33

[Solved] Clang "-cc1" not recognized

#2 2015-05-19 14:51:20

Re: [Solved] Clang "-cc1" not recognized

#3 2015-05-19 16:29:37

Re: [Solved] Clang "-cc1" not recognized

#4 2015-05-19 16:43:42

Re: [Solved] Clang "-cc1" not recognized

#5 2015-05-19 16:43:50

Re: [Solved] Clang "-cc1" not recognized

#6 2015-05-19 17:00:06

Re: [Solved] Clang "-cc1" not recognized

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