Fix cygwin builds on appveyor
diff --git a/appveyor.yml b/appveyor.yml
index 4c0144c..977ade6 100755
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -32,8 +32,6 @@
   - Visual Studio 2017
 
 matrix:
-  allow_failures:
-      - PROFILE: CYGWIN
   fast_finish: true
 
 environment:
@@ -51,7 +49,7 @@
 
    - PROFILE: MSVC2015
      PLATFORM: x86
-     CONFIGURATION: Release
+     CONFIGURATION: Debug
      BUILD_SHARED_LIBS: OFF
      BOOST_VERSION: 1.62.0
      LIBEVENT_VERSION: 2.0.22
@@ -67,15 +65,10 @@
      DISABLED_TESTS: StressTestNonBlocking
 
    - PROFILE: CYGWIN
-     PLATFORM: x86
+     PLATFORM: x64
      CONFIGURATION: RelWithDebInfo
      DISABLED_TESTS: (ZlibTest|OpenSSLManualInitTest|TNonblockingServerTest|StressTestNonBlocking)
 
-#  - PROFILE: CYGWIN
-#    PLATFORM: x64
-#    CONFIGURATION: RelWithDebInfo
-#    DISABLED_TESTS: (ZlibTest|OpenSSLManualInitTest|TNonblockingServerTest|StressTestNonBlocking)
-
 install:
   - cd %APPVEYOR_BUILD_FOLDER%
   - call build\appveyor\%PROFILE:~0,4%-appveyor-install.bat
diff --git a/build/appveyor/CYGW-appveyor-build.bat b/build/appveyor/CYGW-appveyor-build.bat
index fbcc84b..7f33287 100644
--- a/build/appveyor/CYGW-appveyor-build.bat
+++ b/build/appveyor/CYGW-appveyor-build.bat
@@ -23,11 +23,13 @@
   -G'%GENERATOR%' ^
   -DCMAKE_BUILD_TYPE=%CONFIGURATION% ^
   -DCMAKE_INSTALL_PREFIX=%INSTDIR% ^
-  -DCMAKE_CXX_EXTENSIONS=ON ^
   -DCMAKE_CXX_FLAGS="-D_GNU_SOURCE" ^
-  -DCMAKE_CXX_STANDARD=11 ^
+  -DWITH_JAVA=OFF ^
   -DWITH_PYTHON=OFF
 
+:: -DCMAKE_CXX_EXTENSIONS=ON ^
+:: -DCMAKE_CXX_STANDARD=11 ^
+
 @ECHO ON
 %BASH% -lc "mkdir -p %BUILDDIR% && cd %BUILDDIR% && cmake.exe %SRCDIR% %CMAKEARGS% && cmake --build . --config %CONFIGURATION% --target install" || EXIT /B
 @ECHO OFF
diff --git a/build/appveyor/CYGW-appveyor-install.bat b/build/appveyor/CYGW-appveyor-install.bat
index 77db7d4..79b6ef0 100644
--- a/build/appveyor/CYGW-appveyor-install.bat
+++ b/build/appveyor/CYGW-appveyor-install.bat
@@ -31,4 +31,14 @@
 
 %BASH% -lc "wget rawgit.com/transcode-open/apt-cyg/master/apt-cyg && install apt-cyg /bin && rm -f apt-cyg" || EXIT /B
 %BASH% -lc "apt-cyg update" || EXIT /B
-%BASH% -lc "apt-cyg install bison cmake flex gcc-g++ libboost-devel libevent-devel make openssl-devel zlib-devel"
+%BASH% -lc "apt-cyg install bison cmake flex gcc-g++ libboost-devel libevent-devel make openssl-devel xz zlib-devel"
+
+::
+:: We need a newer version of cmake, the one cygwin provides is too old
+:: to recognize the version of boost.  Luckily there is a pre-release
+:: one available, however cygwin's own setup program has no command line
+:: option to allow access to test packages!
+::
+
+%BASH% -lc "apt-cyg remove cmake"
+%BASH% -lc "cd / && wget http://mirror.clarkson.edu/cygwin/x86_64/release/cmake/cmake-3.13.1-1.tar.xz && tar xJf cmake-3.13.1-1.tar.xz && hash -r && cmake --version"