Make kiwix-desktop flatpak use last version of Qt (5.15).

Adapt flatpack_builder to generate the same manifest than PR
flathub/org.kiwix.desktop#6

kiwixbuild/dependencies/base.py

@@ -294,6 +294,8 @@ class Builder:
             module['buildsystem'] = self.flatpak_buildsystem
         if getattr(self, 'subsource_dir', None):
             module['subdir'] = self.subsource_dir
+        if getattr(self, 'flatpack_build_options', None):
+            module['build-options'] = self.flatpack_build_options
         if getattr(self, 'configure_option', ''):
             module['config-opts'] = self.configure_option.split(' ')
 

kiwixbuild/dependencies/kiwix_desktop.py

@@ -16,10 +16,21 @@ class KiwixDesktop(Dependency):
         make_install_target = 'install'
         configure_env = None
 
+        flatpack_build_options = {
+            "env": [
+                "QMAKEPATH=/app/lib"
+            ]
+        }
+
         @property
         def configure_option(self):
             if self.buildEnv.platformInfo.name == 'flatpak':
-                return []
+                options = [
+                    'QMAKE_INCDIR+=/app/include/QtWebEngine',
+                    'QMAKE_INCDIR+=/app/include/QtWebEngineCore',
+                    'QMAKE_INCDIR+=/app/include/QtWebEngineWidgets'
+                ]
+            else:
                 options = ["PREFIX={}".format(self.buildEnv.install_dir)]
                 if self.buildEnv.platformInfo.static:
                     options.append('"CONFIG+=static"')

kiwixbuild/flatpak_builder.py

@@ -33,6 +33,8 @@ MANIFEST = {
     'app-id': 'org.kiwix.desktop',
     'runtime': 'org.kde.Platform',
     'runtime-version': base_deps_versions['org.kde'],
+    'base': 'io.qt.qtwebengine.BaseApp',
+    'base-version': base_deps_versions['org.kde'], # keep BaseApp (qwebengine) in sync with org.kde
     'sdk': 'org.kde.Sdk',
     'command': 'kiwix-desktop',
     'rename-icon': 'kiwix-desktop',

kiwixbuild/versions.py

@@ -59,6 +59,6 @@ base_deps_versions = {
   'android-ndk' : 'r13b',
   'qt' : '5.10.1',
   'qtwebengine' : '5.10.1',
-  'org.kde' : '5.12',
+  'org.kde' : '5.15',
   'zim-testing-suite': '0.3',
 }