[Octave-bug-tracker] [bug #52414] llvm 4.0.1 fails on ./configure --enable-jit

[Julien Bect]

Follow-up Comment #11, bug #52414 (project octave):

Hi Michael,

Your question is slightly off-topic IMO, since this ticket is about LLVM
3.9...

Trying to anwser anyway :

1) Have you set the environment variable LLVM_CONFIG before building?  If not,
you are probably trying to build with LLVM 7.0, which as you know is not
supported.

2) In the list of LLVM versions that you indicate, only LLVM 3.9 is currently
supposed to work.  Therefore you should set LLVM_CONFIG to point to the
llvm-config utility of LLVM 3.9.  In Debian this is:

export LLVM_CONFIG=`which llvm-config-3.9`

If Octave fails to configure or build with this, please open a dedicated bug
report about LLVM 3.9.

3) About supporting LLVM 5, 6 and 7 as well: sure, it would be better, but I
need help if you want things to move faster...  Since you happen to have LLVM
5 installed, perhaps can you try to configure+build with it, and then tell us
about it in a dedicated bug report?

Please always provide your config.log when reporting about configure issues.

@++
Julien

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