meson, ci: Bump Libadwaita version to 1.6.alpha

This requires building from source, so do that for ci.

.gitlab-ci.yml

@@ -33,6 +33,13 @@ stages:
 
 .Build Procedure: &build_procedure
   echo "== Building ==" &&
+  git clone --depth 1 https://gitlab.gnome.org/GNOME/libadwaita.git &&
+    cd libadwaita &&
+    meson setup _build --prefix=/usr -Dtests=false -Dexamples=false &&
+    meson compile -C _build &&
+    meson install -C _build &&
+    cd .. &&
+    rm -rf libadwaita &&
   meson setup _build ${BUILD_OPTS} -Dprofile=development &&
   meson compile -C _build 2>&1 | tee compilation.log
 
@@ -49,7 +56,7 @@ stages:
     # Should probably also switch away from 'rawhide',
     # to stable fedora branch as well.
     BRANCH_NAME: 'main'
-    CONTAINER_TAG: '2024-05-19.0'
+    CONTAINER_TAG: '2024-05-28.0'
     FEDORA_VERSION: rawhide
     # Derive FDO variables from this automatically.
     # DO NOT edit, instead change the variables above
@@ -73,8 +80,9 @@ build.container.fedora@x86_64:
     # Expiry sets fdo.expires on the image
     FDO_EXPIRES_AFTER: 8w
     # NOTES:
-    # - gobject-introspection-devel is needed for gsettings-desktop-schemas
+    # - most packages are needed for testing
     # - glibc-langpack-en is needed for sorting in run-style-check-diff.sh
+    # - libsass-devel, sassc are needed for building libadwaita
     FDO_DISTRIBUTION_PACKAGES: >-
       @c-development @development-tools
       dnf5-plugins
@@ -86,6 +94,7 @@ build.container.fedora@x86_64:
       python3-dbusmock
       xorg-x11-server-Xvfb
       mesa-dri-drivers
+      libsass-devel sassc
     FDO_DISTRIBUTION_EXEC: |-
       dnf builddep -y gnome-control-center && \
       dnf builddep -y gsettings-desktop-schemas && \
@@ -102,6 +111,7 @@ build.container.fedora@x86_64:
         meson compile -C _build && \
         meson install -C _build && \
         cd .. && \
+      dnf builddep -y libadwaita && \
       dnf remove -y systemtap-runtime
 
 ##

meson.build

@@ -143,7 +143,7 @@ gtk_dep = dependency(
 
 libadwaita_dep = dependency(
   'libadwaita-1',
-  version: '>= 1.5',
+  version: '>= 1.6.alpha',
   required: false
 )
 # FIXME: this is a workaround because interactive-tests don't work with libadwaita as a subproject. See !1754