Provider PackageManager failed to satisfy dependency gobject about cairo.jl

[timholy]

I should add that the contents of C:\Users\tim\AppData\Roaming\julia\packages\RPMmd\deps\usr\x86_64-w64-mingw32\sys-root\mingw\bin include 'libgobject-2.0-0.dll`, with size 308 KB.

[ihnorton]

The problem here is missing dependency DLLs. I was able to get Cairo working by checking what is missing (for gobject, then libcairo) using Dependency Walker, and then running RPMmd.install for each one (libcairo2, pango, libffi, libintl, maybe some others). But that is obviously not a generalizable solution.

There are a few things going on:

• bug in RPMmd such that Packages(pkgs::Vector{Package}) errors out
• pango install is not being run.
• upstream does not list dependencies correctly. gobject depends on libffi and libintl but those are not listed in the RPMmd XML file. I guess we know some of this already, because we list some dependencies explicitly (zlib, ffi, png). However, those provider lines in Cairo's build script are not being executed correctly (or perhaps, in the wrong order?). I'm not sure why this is now a problem.. @vtjnash is more familiar with the RPMmd setup and might be able to comment on what has changed (version bumps? linker options on the build host?).

There is a one-line fix for the 1st one, which I will push later on - hopefully with a fix for the 2nd, although the interaction between BinDeps and RPMmd is rather...mystifying and difficult to debug on windows.

[ihnorton]

Apparently it works on 32-bit build (just confirmed myself). Very strange.

[ihnorton]

Never mind, just saw this. I suppose we could do the same thing for 64-bit.

[quinnj]

I just updated everything and ran into this problem as well. Windows 8 64-bit native build. Commit bc0b382

[ihnorton]

I just pushed a hacky fix, which depends on this pr. Neither of those is particularly satisfying, but at this point I don't have time to dig in to RPMmd upstream dependency issues. If no other solution is forthcoming we should merge those so people can test the more important stuff that uses Cairo.

[ihnorton]

Fixed in JuliaPackaging/WinRPM.jl@b3624ac and JuliaLang/METADATA.jl@d851d76

[ihnorton]

I tested installation against a clean julia, and used Cairo via Jeff's fractal notebook. Everything was smooth.

[timholy]

Works for me, too. This is the first time I've had graphics on 64-bit Windows, so this is a huge step forward! Thanks so much!

[StefanKarpinski]

Slowly, but surely, we're getting better at this.

[timholy]

Clearly!