[llvm-dev] llvm-config issues

[Marc Defossez via llvm-dev]

Hi David,

Thanks for the reply!
I have the latest version of GHDL and it supports version 8 of LLVM.
My solution was to uninstall (purge) everything and install it again via 
another way (synaptic)
Then everything worked.
     I had to add after the second install two links one for clang++ and 
one for clang.
      There were in /usr/bin links for clang++-8 and clang-8 and that 
cause at the end a install script to fail.

Kind regards,

Marc

On 8/07/19 07:28, David Wiberg wrote:
> Den mån 8 juli 2019 kl 04:19 skrev Marc Defossez via llvm-dev
> <llvm-dev at lists.llvm.org>:
>> Hi,
>>
>> I hope I can ask my question here and get answers, hints about what might be wrong.
>>      Googled, but got no meaningful answer
>>      Asked GHDL developers but it's not a GHDL issue.
>>      Thus, I arrived here
>>      Already many thanks in advance.
>>
>> - System: Linux-Mint 19
>> - For building of GHDL, LLVM is required.
>> - Went to apt.llvm.org
>> - Browsed down till Ubuntu square and add the LLVM-8 deb and deb-src line for Ubuntu 18.04 as a .list file to the apt source.list.d of my system (Ubuntu-18.04 because Mint-19 is based on it).
>> - Browsed further down the page and followed the qualification branch install procedure.
>> - Everything installed without any error or warning.
>> - Typing afterwards in the terminal: "clang-8 --version" results in this return:
>>
>> clang version 8.0.1-svn363027-1~exp1~20190611211629.77 (branches/release_80)
>> Target: x86_64-pc-linux-gnu
>> Thread model: posix
>> InstalledDir: /usr/bin
>>
>> - Running in the terminal the configure command for GHDL:
>>           "../configure --with-llvm-config=/usr/bin/llvm-config-8 --prefix=/opt/Ghdl"
>>    results in this output:
>>
>> Use full IEEE library
>> Build machine is: x86_64-linux-gnu
>> Unhandled version llvm 8.0.1
>>
>> Why do I get:     Unhandled version llvm 8.0.1
> Hi Marc,
>
> The error message you are seeing originates from the GHDL configure
> command. It seems like GHDL support for LLVM 8 was added pretty
> recently (see https://github.com/ghdl/ghdl/commit/7328eae022b0b85c2071ea4d4aaad0c7a97ca436#diff-e2d5a00791bce9a01f99bc6fd613a39d)
> so my best tips would be to make sure you have the latest GHDL
> version. This does not seem to be an LLVM issue.
>
> Best Regards
> David
>
>> - "/usr/bin" is in the PATH.
>> - "/usr/bin/llvm-config-8" is a link, so I tried to use the source of the link: "/usr/lib/llvm-8/bin/llvm-config" but thsi did not help.
>> - Running in terminal: "/usr/lib/llvm-8/bin/llvm-config --version" results in this return: 8.0.1
>> - The same output is obtained when running at the prompt: "llvm-config-8".
>> - Checked, "apt-cache policy llvm-8", the llvm-8 version in apt return the same value and version as I installed via apt.llvm.org
>>
>> What can be wrong?
>> Or what did I do wrong?
>>
>> Many thanks in advance,
>>
>> Marc
>>
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