Has anyone succeeded in pulling vix & image to a Windows machine? The docs says pre-build binaries are available but nothing is fetched.
aiwaiwa
kwando
kip
ex_cldr Core Team
vix needs to be at least version 0.16.0 for prebuild binaries, and of course image depends on vix.
I don’t have any windows machines so I’m afraid I don’t have much of an idea. Pinging @akash-akya to see if he has any suggestions.
1
aiwaiwa
Thank you for this! Sharp mentions Windows binaries are available, so I wonder if it’s just a missing matching in cast_target of vix’s build_scripts\precompiler.exs
defp cast_target(%{os: os, arch: arch, abi: abi}) do
case {arch, os, abi} do
{"x86_64", "linux", "musl"} ->
{:ok, "linuxmusl-x64"}
{"aarch64", "linux", "musl"} ->
{:ok, "linuxmusl-arm64v8"}
{"x86_64", "linux", "gnu"} ->
{:ok, "linux-x64"}
{"aarch64", "linux", "gnu"} ->
{:ok, "linux-arm64v8"}
{"x86_64", "apple", "darwin"} ->
{:ok, "darwin-x64"}
{"aarch64", "apple", "darwin"} ->
{:ok, "darwin-arm64v8"}
end
end
0
akash-akya
I don’t have windows machine to test/debug, so NIF for windows is not supported yet. Even though Sharp/libvips can support windows, NIF does not. You can track progress here.
That said, if you are using wsl in windows, it should work.
@kwando can you share bit more details? which version of vix are you using? if possible please share compilation logs
0
aiwaiwa
kwando
I have not tinkered that much with it, just tried to get image to run on the RPi4 
❯ mix compile
==> vix
make[1]: Entering directory '/home/kwando/vix_test/deps/vix/c_src'
** (CaseClauseError) no case clause matching: {"armv7l", "linux", "gnueabihf"}
/home/kwando/vix_test/deps/vix/build_scripts/precompiler.exs:39: Vix.LibvipsPrecompiled.cast_target/1
/home/kwando/vix_test/deps/vix/build_scripts/precompiler.exs:30: Vix.LibvipsPrecompiled.url/2
/home/kwando/vix_test/deps/vix/build_scripts/precompiler.exs:16: Vix.LibvipsPrecompiled.fetch_libvips/0
(elixir 1.12.3) lib/code.ex:1261: Code.require_file/2
make[1]: *** [Makefile:84: /home/kwando/vix_test/_build/dev/lib/vix/priv/precompiled_libvips] Error 1
make[1]: Leaving directory '/home/kwando/vix_test/deps/vix/c_src'
make: *** [Makefile:5: all] Error 2
could not compile dependency :vix, "mix compile" failed. You can recompile this dependency with "mix deps.compile vix", update it with "mix deps.update vix" or clean it with "mix deps.clean vix"
==> vix_test
** (Mix) Could not compile with "make" (exit status: 2).
You need to have gcc and make installed. If you are using
Ubuntu or any other Debian-based system, install the packages
"build-essential". Also install "erlang-dev" package if not
included in your Erlang/OTP version. If you're on Fedora, run
"dnf group install 'Development Tools'".
kwando@pi 10.0.0.7 ~/vix_test took 4s
❯ mix hex.info
Hex: 2.0.6
Elixir: 1.12.3
OTP: 24.1.3
mix.lock
%{
"castore": {:hex, :castore, "0.1.22", "4127549e411bedd012ca3a308dede574f43819fe9394254ca55ab4895abfa1a2", [:mix], [], "hexpm", "c17576df47eb5aa1ee40cc4134316a99f5cad3e215d5c77b8dd3cfef12a22cac"},
"cc_precompiler": {:hex, :cc_precompiler, "0.1.7", "77de20ac77f0e53f20ca82c563520af0237c301a1ec3ab3bc598e8a96c7ee5d9", [:mix], [{:elixir_make, "~> 0.7.3", [hex: :elixir_make, repo: "hexpm", optional: false]}], "hexpm", "2768b28bf3c2b4f788c995576b39b8cb5d47eb788526d93bd52206c1d8bf4b75"},
"elixir_make": {:hex, :elixir_make, "0.7.6", "67716309dc5d43e16b5abbd00c01b8df6a0c2ab54a8f595468035a50189f9169", [:mix], [{:castore, "~> 0.1 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}], "hexpm", "5a0569756b0f7873a77687800c164cca6dfc03a09418e6fcf853d78991f49940"},
"image": {:hex, :image, "0.27.0", "f1bc493fc2abe48a530292dbfc11bd2bbd00ab95289b46c47f096fafd3a4ec40", [:mix], [{:bumblebee, "~> 0.2", [hex: :bumblebee, repo: "hexpm", optional: true]}, {:evision, "~> 0.1.26", [hex: :evision, repo: "hexpm", optional: true]}, {:exla, "~> 0.5", [hex: :exla, repo: "hexpm", optional: true]}, {:jason, "~> 1.4", [hex: :jason, repo: "hexpm", optional: true]}, {:kino, "~> 0.7", [hex: :kino, repo: "hexpm", optional: true]}, {:nx, "~> 0.5", [hex: :nx, repo: "hexpm", optional: true]}, {:phoenix_html, "~> 2.14 or ~> 3.2", [hex: :phoenix_html, repo: "hexpm", optional: false]}, {:plug, "~> 1.13", [hex: :plug, repo: "hexpm", optional: true]}, {:sweet_xml, "~> 0.7", [hex: :sweet_xml, repo: "hexpm", optional: false]}, {:vix, "~> 0.15", [hex: :vix, repo: "hexpm", optional: false]}], "hexpm", "93d3383296dd2b1a0a18903b184e519e846e387943a83e3713b2b26ee7e3cec1"},
"phoenix_html": {:hex, :phoenix_html, "3.3.1", "4788757e804a30baac6b3fc9695bf5562465dd3f1da8eb8460ad5b404d9a2178", [:mix], [{:plug, "~> 1.5", [hex: :plug, repo: "hexpm", optional: true]}], "hexpm", "bed1906edd4906a15fd7b412b85b05e521e1f67c9a85418c55999277e553d0d3"},
"sweet_xml": {:hex, :sweet_xml, "0.7.3", "debb256781c75ff6a8c5cbf7981146312b66f044a2898f453709a53e5031b45b", [:mix], [], "hexpm", "e110c867a1b3fe74bfc7dd9893aa851f0eed5518d0d7cad76d7baafd30e4f5ba"},
"vix": {:hex, :vix, "0.16.2", "1d18624c51a12ccd9042e263ba5b9145f4f6b06042d5f7fb170667f7e3bff42b", [:make, :mix], [{:castore, "~> 0.1", [hex: :castore, repo: "hexpm", optional: false]}, {:cc_precompiler, "~> 0.1.4 or ~> 0.2", [hex: :cc_precompiler, repo: "hexpm", optional: false]}, {:elixir_make, "~> 0.7.3 or ~> 0.8", [hex: :elixir_make, repo: "hexpm", optional: false]}, {:kino, "~> 0.7", [hex: :kino, repo: "hexpm", optional: true]}], "hexpm", "2c62dd442515641967e6286785785983256315e59aa1e8f29b3365d6854f7a11"},
}
The build-essential package is installed 
❯ which gcc
/usr/bin/gcc
❯ which make
/usr/bin/make
0
akash-akya
Thanks for sharing the details. Looks like you are running 32bit OS, so arch is getting reported as arm7l not aarch64. It’s works on my RPi4 which is running 64bit OS
pi@raspberrypi:~ $ lscpu
Architecture: aarch64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 4
On-line CPU(s) list: 0-3
Thread(s) per core: 1
Core(s) per socket: 4
Socket(s): 1
Vendor ID: ARM
Model: 3
Model name: Cortex-A72
Stepping: r0p3
CPU max MHz: 1800.0000
CPU min MHz: 600.0000
BogoMIPS: 108.00
Vulnerability Itlb multihit: Not affected
Vulnerability L1tf: Not affected
Vulnerability Mds: Not affected
Vulnerability Meltdown: Not affected
Vulnerability Spec store bypass: Vulnerable
Vulnerability Spectre v1: Mitigation; __user pointer sanitization
Vulnerability Spectre v2: Vulnerable
Vulnerability Srbds: Not affected
Vulnerability Tsx async abort: Not affected
Flags: fp asimd evtstrm crc32 cpuid
I’ll try to fix it release a version soon
kip
ex_cldr Core Team
Great idea @chrismccord - I updated the repo Livebook to use the same approach. Much easier to experiment that way. Thanks!