Where is libclang.so?

Question

I am using Linux Mint and I installed clang_complete using the makefile from Clang Complete, but it does not work. When I open a cpp file, there is an error message:

Loading libclang failed, completion won't be available. Consider setting g:clang_library_path

I already did some research on this topic and tried to find the libclang.so file to put g:clang_library_path= '...' into my vimrc, but I cannot find the file so I cannot define the path in my vimrc.

$ find / -name libclang -type f 2> /dev/null doesn't return anything.

How do I make clang_complete work?

Obviously you'll need to install clang (or libclang if it's available in a separate package) for that. — Cubic, Mar 29 '14 at 17:00
ok I've done "apt-get install clang". But code completion in vim is still not working... — user3476184, Mar 29 '14 at 17:38
Related, for future readers: https://github.com/Sarcasm/irony-mode/issues/140 — Sean Allred, Dec 08 '14 at 20:50

score 21 · Answer 1 · answered Jun 03 '14 at 22:57

21

You probably have libclang.so.1 in /usr/lib/x86_64-unknown-linux or somewhere similar. Make a symbolic link named as libclang.so in any of your library path would solve the problem (at least for me).

cd /usr/lib/x86_64-unknown-linux
ln -s libclang.so.1 libclang.so

answered Jun 03 '14 at 22:57

xuhdev

8,018
2
41
69

1

Thanks. Solved the problem on my machine. – Elazar Oct 09 '14 at 17:05

score 11 · Answer 2 · edited Feb 21 '22 at 17:31

11

You need to install libclang. On my Ubuntu system it is in the "libclang1" package. Clang compiler and libclang are in different packages.

edited Feb 21 '22 at 17:31

the Tin Man

158,662
42
215
303

answered Mar 29 '14 at 17:53

Sandro

2,707
2
20
30

now there is a libclang.so.1 file in usr/lib/ . But defining usr/lib/ as clang_library_path does not change anything. still the same error. – user3476184 Mar 29 '14 at 18:31
ok :) usr/lib now contains libclang.so . But let clang_library_path= 'usr/lib' in my vimrc still doesn' t change anything... – user3476184 Mar 29 '14 at 18:55
you should use clang_library_path= '/usr/lib' not 'usr/lib' if it does not work remove clang_library_path variable. /usr/lib is default path. it should find library automatically there – Sandro Mar 29 '14 at 18:57
mhh it's still "loading liblang failed". Maybe I should try to install clang_complete again: Do you think https://github.com/Rip-Rip/clang_complete works? I did "git clone https://github.com/Rip-Rip/clang_complete.git" in my .vim directory and then "make install".. – user3476184 Mar 29 '14 at 19:09
Try to clone git repository to some other directory, and then do make install... I use clang_complete from git hub and it works fine. – Sandro Mar 29 '14 at 19:12
ok I removed it and installed it this way. it' s still not working. I ve installed omnigppcomplete before but deleted the directories in .vim . Do you have another idee maybe? – user3476184 Mar 29 '14 at 21:11
how can I check this? – user3476184 Mar 29 '14 at 21:23
vim --version | grep python you should see "+python" in the output. If there is "-python" then vim compiled without python support – Sandro Mar 29 '14 at 21:35
there is +python but -python3 – user3476184 Mar 29 '14 at 21:40
that's ok clang-complete does not need python3 I have no idea.... Does it still con't find library? Or something else? – Sandro Mar 29 '14 at 21:42
it 's still loading libclang failed – user3476184 Mar 29 '14 at 22:04

score 4 · Answer 3 · edited Feb 21 '22 at 17:30

4

I ran into this issue with Ubuntu 20.04.3 LTS:

Loading libclang failed, completion won't be available. Are you sure '/usr/lib/x86_64-linux-gnu/libclang-6.0.so.1' contains libclang?

I fixed it using:

Install libclang
```
sudo apt install clang
```

Add following in .vimrc to use latest installed libclang

let g:clang_library_path = '/usr/lib/x86_64-linux-gnu/libclang-10.so.1'

If needed, adjust "libclang-10.so.1" to use the clang version that was installed.

You should be good with Vim at this point.

edited Feb 21 '22 at 17:30

the Tin Man

158,662
42
215
303

answered Feb 15 '22 at 19:24

Sandeep

41
2

In a mix of helpful answers, this one was the solver for me. thanks – Cássio Rodrigo Peluso Jul 31 '22 at 07:29

score 0 · Answer 4 · edited Feb 21 '22 at 17:38

0

In $clang_complete/plugin/libclang.py, there is a code like this:

debug = int(vim.eval("g:clang_debug")) == 1

So use let g:clang_debug=1 to enable clang debug.

For me, the error is:

/lib64/libstdc++.so.6: version 'GLIBCCC_3.x.xx' not found

Set LD_LIBRARY_PATH and PKG_CONFIG_PATH to a third libstdc++ will solve this.

edited Feb 21 '22 at 17:38

the Tin Man

158,662
42
215
303

answered Aug 15 '18 at 15:22

James Lee

21
4

Where is libclang.so?

4 Answers4