[librsvg] Add windows tests

[Federico Mena Quintero <federico src gnome org>]

commit 9b4a9e9c05d6ee7b81c18b23e7a32c392bcc817f
Author: Guillaume Gomez <guillaume1 gomez gmail com>
Date:   Sat Feb 10 00:00:44 2018 +0100

    Add windows tests

 .gitignore   |  1 +
 appveyor.yml | 23 +++++++++++++++++++++++
 2 files changed, 24 insertions(+)
---
diff --git a/.gitignore b/.gitignore
index 17f9ccc1..3dd4cae4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -77,3 +77,4 @@ Rsvg-2.0.typelib
 librsvg-2.0.vapi
 librsvg-*.tar.xz
 librsvg-*.tar.bz2
+rust/target
diff --git a/appveyor.yml b/appveyor.yml
new file mode 100644
index 00000000..1a73ed2b
--- /dev/null
+++ b/appveyor.yml
@@ -0,0 +1,23 @@
+environment:
+  matrix:
+    - RUST: stable
+      BITS: 32
+    - RUST: stable
+      BITS: 64
+
+install:
+  - IF "%BITS%" == "32" SET ARCH=i686
+  - IF "%BITS%" == "64" SET ARCH=x86_64
+  - curl -sSf -o rustup-init.exe https://win.rustup.rs
+  - rustup-init.exe --default-host "%ARCH%-pc-windows-gnu" --default-toolchain %RUST% -y
+  - SET PATH=C:\Users\appveyor\.cargo\bin;C:\msys64\mingw%BITS%\bin;%PATH%;C:\msys64\usr\bin
+  - rustc -Vv
+  - cargo -Vv
+  - pacman --noconfirm -S mingw-w64-%ARCH%-gtk3 mingw-w64-%ARCH%-gtk3
+
+build_script:
+  - cd rust
+  - cargo build
+  - cargo test
+
+test: false