Fix Windows build

appveyor.yml

@@ -18,8 +18,7 @@ clone_depth: 1
 #   - ps: iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))
 
 build_script:
-  - C:\msys64\usr\bin\pacman -Syu --needed --noconfirm --ask=20
-  - C:\msys64\usr\bin\pacman -Su --needed --noconfirm
+  - C:\msys64\usr\bin\pacman -Syuu --needed --noconfirm --noprogressbar --overwrite \\*
   - ps: |
         $env:TIME_STRING=(get-date -UFormat "%Y-%m-%d").ToString()
         $env:BUILDROOT="C:\msys64\home\appveyor\gajim\win\_build_root"

win/_base.sh

@@ -168,7 +168,6 @@ function cleanup_install {
         mingw-w64-"${ARCH}"-"${PYTHON_ID}"-pip mingw-w64-"${ARCH}"-ncurses || true
     build_pacman --noconfirm -Rdd mingw-w64-"${ARCH}"-tk || true
     build_pacman --noconfirm -Rdd mingw-w64-"${ARCH}"-tcl || true
-    build_pacman --noconfirm -Rdd mingw-w64-"${ARCH}"-gsl || true
 
     #delete translations we don't support
     for d in "${MINGW_ROOT}"/share/locale/*/LC_MESSAGES; do
@@ -298,12 +297,17 @@ function cleanup_install {
 
 }
 
+function download_ssl_libs {
+    # Python needs these ssl libs but msys does not provide them
+    curl -o "${BUILD_ROOT}"/ssl.zip https://gajim.org/downloads/snap/win/build/ssl.zip
+    7z x -o"${MINGW_ROOT}"/bin "${BUILD_ROOT}"/ssl.zip
+}
+
 function move_ssl_libs {
     # Pythons ssl module searches in that path for these dlls, if they are not there
     # C:/Windows/system32 is searcherd and potentially wrong versioned dlls are found there
     cp "${MINGW_ROOT}"/bin/libeay32.dll "${MINGW_ROOT}"/lib/python3.7/lib-dynload/libeay32.dll
     cp "${MINGW_ROOT}"/bin/ssleay32.dll "${MINGW_ROOT}"/lib/python3.7/lib-dynload/ssleay32.dll
-
 }
 
 function build_installer {

win/build.sh

@@ -17,6 +17,7 @@ function main {
     install_deps
     install_gajim
     cleanup_install
+    download_ssl_libs
     move_ssl_libs
     build_installer
 }