OpenSSL warning upon `using PDFIO` about pdfio.jl

[sambitdash]

This is behavior is expected as the package dependency of zlib precompiled files are created for Julia 1.3+ and pre 1.3 builds the deps/build.jl files are used.

PDFIO.jl/src/Inflate.jl

Line 48 in f8c990e

@static if Base.VERSION > v"1.3-" && !(Sys.iswindows() && Sys.WORD_SIZE == 32)

Modifying this behavior will make the package unsupported for Julia 1.0 version which is an LTS version for Julia and thus make the package unusable for those users. Removing support for Julia 1.0 and making minimum required version to Julia 1.3 will fix the problem.

[sambitdash]

The above is added to PDFIO already. And only reported when the PDFIO has to be compiled. The packages are stored in the ~/.julia/packages/PDFIO/ folder. But for editing the package you will need to checkout the PDFIO in the dev mode. Please look into package management of Julia to understand those.

The simplest will be ]add OpenSSL_jll before you call using PDFIO.

[sambitdash]

There is no functionality loss due to this issue and there is just a mere annoyance. So there is no urgency on fixing this.

[sambitdash]

Thanks @aviks. 57e2c06 should fix this now.

[sambitdash]

The same applies for OpenSSL as well. The warning is typically reported once.

PDFIO.jl/src/LibCrypto.jl

Line 1 in f8c990e

@static if Base.VERSION > v"1.3-" && !(Sys.iswindows() && Sys.WORD_SIZE == 32)

[jakewilliami]

This warning is reported every time I use PDFIO. I will add the above into the LibCrypto.jl file. Do you know where this is found? It does not seem to be in ~/.julia/packages/PDFIO/ or ~/.julia/compiled/PDFIO/.

[jakewilliami]

Do I need to Pkg.add("OpenSSL_jll") before using PDFIO every time to suppress this warning? Because I have added OpenSSL_jll but the warning keeps showing up.

[aviks]

@sambitdash why don't you just add Zlib_jll and OpenSSL_jll to this project's Project.toml. JLL packages are safe to install even with Julia 1.0 .. they are a no-op when installing on older versions of Julia. In general, installing packages at runtime is not a great idea.

Ideally, I'd just support Julia 1.3 and above in this package, but of course you may have your reasons to support 1.0 and up.