THRIFT-4081: appveyor retooling - added mingw64 build as a second job to the CI build process
This closes #1205
diff --git a/build/appveyor/build-libevent.bat b/build/appveyor/build-libevent.bat
new file mode 100644
index 0000000..13c74ee
--- /dev/null
+++ b/build/appveyor/build-libevent.bat
@@ -0,0 +1,30 @@
+::
+:: Licensed under the Apache License, Version 2.0 (the "License");
+:: you may not use this file except in compliance with the License.
+:: You may obtain a copy of the License at
+::
+:: http://www.apache.org/licenses/LICENSE-2.0
+::
+:: Unless required by applicable law or agreed to in writing, software
+:: distributed under the License is distributed on an "AS IS" BASIS,
+:: WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+:: See the License for the specific language governing permissions and
+:: limitations under the License.
+::
+
+SETLOCAL EnableDelayedExpansion
+
+SET URLFILE=libevent-%LIBEVENT_VERSION%-stable.tar.gz
+SET URL=https://github.com/libevent/libevent/releases/download/release-%LIBEVENT_VERSION%-stable/%URLFILE%
+
+CD %WIN3P% || EXIT /B
+appveyor DownloadFile %URL% || EXIT /B
+7z x %URLFILE% -so | 7z x -si -ttar > nul || EXIT /B
+CD "libevent-%LIBEVENT_VERSION%-stable" || EXIT /B
+nmake -f Makefile.nmake || EXIT /B
+mkdir lib || EXIT /B
+move *.lib lib\ || EXIT /B
+move WIN32-Code\event2\* include\event2\ || EXIT /B
+move *.h include\ || EXIT /B
+
+ENDLOCAL