ADD: first try for an appveyor file targetting mingw

diff --git a/appveyor.yml b/appveyor.yml
new file mode 100644 (file)
index 0000000..69ad5ef
--- /dev/null
+++ b/appveyor.yml
@@ -0,0 +1,16 @@
+os: Windows Server 2012
+platform: x64
+
+branches:
+  only:
+    - master
+
+install:
+ - cinst make
+ - cinst mingw
+
+before_build:
+ - make clean
+ 
+ build:
+  - make all