[snap] Fix snapcraft build for core20

snapcraft.yaml

@@ -25,28 +25,7 @@ plugs:
   x11:
 
 parts:
-  wxwidgets-sdk:
-    plugin: nil
-    stage-snaps:
-    - wxwidgets-sdk-gtk3
-    stage-packages:
-    # Crash dialog support
-    - binutils
-    filesets:
-      crash-dialog-support:
-      - usr/bin/*addr2line
-      library-shared:
-      - '**/lib/**/*.so*'
-    prime:
-    - $crash-dialog-support
-    - $library-shared
   vbam:
-    after:
-    - wxwidgets-sdk
-
-    build-environment:
-      - CFLAGS: -I$SNAPCRAFT_STAGE/lib/wx/include/gtk3-unicode-3.0
-      - CXXFLAGS: -I$SNAPCRAFT_STAGE/lib/wx/include/gtk3-unicode-3.0
     source: https://github.com/visualboyadvance-m/visualboyadvance-m.git
     override-pull: |
       snapcraftctl pull
@@ -54,10 +33,11 @@ parts:
       snapcraftctl set-version "${last_commit}"
       sed -i.bak -e 's|Icon=visualboyadvance-m|Icon=/usr/share/icons/hicolor/scalable/apps/visualboyadvance-m.svg|g' src/wx/visualboyadvance-m.desktop
     plugin: cmake
+    cmake-generator: Ninja
     stage-packages:
       - libsdl2-2.0-0
-      - libsfml-network2.4
+      - libsfml-network2.5
-      - libsfml-system2.4
+      - libsfml-system2.5
       - libnotify4
       - libsm6
       - libopenal1
@@ -69,6 +49,7 @@ parts:
       - libglvnd0
       - libglx0
       - libopengl0
+      - libwxgtk3.0-gtk3-0v5
 
     build-packages:
       - g++
@@ -85,7 +66,8 @@ parts:
       - libsfml-dev
       - libgtk-3-dev
       - libopenal-dev
-    configflags:
+      - libwxgtk3.0-gtk3-dev
+    cmake-parameters:
       - -DENABLE_OPENAL=ON
       - -DENABLE_SDL=OFF
       - -DCMAKE_INSTALL_PREFIX=/usr
@@ -94,6 +76,6 @@ apps:
   visualboyadvance-m:
     command: usr/bin/visualboyadvance-m
     desktop: usr/share/applications/visualboyadvance-m.desktop
-    extensions: [gnome-3-28]
+    extensions: [gnome-3-38]
     environment:
       LD_LIBRARY_PATH: $LD_LIBRARY_PATH:$SNAP/usr/lib/$SNAPCRAFT_ARCH_TRIPLET/pulseaudio