Build error: chksquare not defined

[eschnett]

I see this error when building Compat with a recent master checkout of Julia:

ERROR: LoadError: UndefVarError: chksquare not defined

I believe these lines cause the problem:

module LinAlg
    if VERSION < v"0.5.0-dev+2022"
        const checksquare = Base.LinAlg.chksquare
    else
        import Base.LinAlg.checksquare
    end
end

because

julia> VERSION
v"0.5.0-dev"

That is, my Julia build does not know which version it has.

[tkelman]

Building without version info completely breaks compat, best to not do it. There's an old Julia issue on this.

[eschnett]

So there should be an explicit error given in this case, not an obscure error from Compat?

[tkelman]

It's fine if you're on a release tag. Without git it's a little harder to tell whether or not that's the case.

[cortner]

I tried to narrow down a bug by checking out several commits of Julia. Unfortunately as soon as I was on a commit without release tag, this error occurred.

[tkelman]

did you set NO_GIT ? or are you working from source that isn't from a git clone?

[cortner]

I work from a git clone, and I did not set NO_GIT. Are you suggesting that I should make NO_GIT=1?

[tkelman]

no, make NO_GIT=1 is likely to break Compat. if you did build from a normal git clone, what is dump(Base.GIT_VERSION_INFO) ?

[cortner]

julia> Base.GIT_VERSION_INFO
Base.GitVersionInfo("cede5394b79c152829203dd9c19bf30772eb7ca1","cede539","(HEAD detached at cede539)",0,"2016-08-04 08:48 UTC",true,0,1.470300497e9)

not too sure how HEAD got detached. . . would that have caused it?

[cortner]

julia5
_
_ _ ()_ | A fresh approach to technical computing
() | () () | Documentation: http://docs.julialang.org
_ _ | | __ _ | Type "?help" for help.
| | | | | | |/ ` | |
| | || | | | (| | | Version 0.5.0-rc1+0 (2016-08-04 08:48 UTC)
/ |_'|||__'| |
|__/ | x86_64-apple-darwin15.6.0

[tkelman]

did you possibly make a local tag? that would modify build_number and/or fork_master_distance

[cortner]

No, I didn't create a new tag.

[cortner]

wait - I sent you the wrong information here. When I had the chksquare not defined problem it was on a different commit. sorry.

[tkelman]

are you using a shallow clone? does git fetch --unshallow and/or git fetch --tags then make clean && make change the result of dump(Base.GIT_VERSION_INFO)? the missing build information is probably causing this, ref JuliaLang/julia#15636

[quinnj]

Doesn't sound like there's anything actionable here. Anyone feel free to re-open if that's not the case.