Allow the container build to build dependencies using meson

ci/build_libs.sh

@@ -18,6 +18,15 @@ AUTOGEN_OPTIONS="
   --enable-gtk-doc
 "
 
+MESON_SETUP_OPTIONS="
+  --buildtype=release
+  --prefix=/usr
+  --libdir=$libdir
+  --libexecdir=$libexecdir
+  --sysconfdir=/etc
+  --localstatedir=/var
+"
+
 # list of git repos in build order
 REPOS="${XFCE_BASE}/xfce/xfce4-dev-tools.git
   ${XFCE_BASE}/xfce/libxfce4util.git
@@ -40,24 +49,43 @@ for URL in ${REPOS}; do
     TAG=$(git tag --sort=version:refname | grep  "$NAME-" | tail -1)
     echo "--- Building $NAME ($TAG) ---"
     git checkout -b build-$TAG $TAG
-    ./autogen.sh $AUTOGEN_OPTIONS
-    make -j${NPROC:-$(nproc)}
-    make install
+    if [ -x autogen.sh ]; then
+      BUILDDIR_PREFIX=.
+      ./autogen.sh $AUTOGEN_OPTIONS
+      make -j${NPROC:-$(nproc)}
+      make install
+    elif [ -f meson.build ]; then
+      BUILDDIR_PREFIX=build
+      # Passing unknown options to 'meson setup' is a fatal error
+      if ( [ -f meson_options.txt ] && grep -q "'gtk-doc'" meson_options.txt ) || \
+         ( [ -f meson.options ] && grep -q "'gtk-doc'" meson.options );
+      then
+        GTK_DOC_OPT='-Dgtk-doc=true'
+      else
+        GTK_DOC_OPT=''
+      fi
+      meson setup $MESON_SETUP_OPTIONS $GTK_DOC_OPT "$BUILDDIR_PREFIX"
+      meson compile -C"$BUILDDIR_PREFIX"
+      meson install -C"$BUILDDIR_PREFIX" --skip-subprojects
+    else
+      echo "No supported build system found for $NAME" >&2
+      exit 1
+    fi
     echo "$(pwd): $(git describe)" >> /tmp/xfce_build_version_info.txt
     # Retain HTML docs in /docs
     if [[ -d "$(pwd)/docs" ]]; then
       # Special case for thunar because it has docs for thunar and thunarx
       if [[ "$NAME" == "thunar" ]]; then
         mkdir -p "/docs/$NAME"{,x}
-        cp -a docs/reference/thunar/html/. "/docs/$NAME"
-        cp -a docs/reference/thunarx/html/. "/docs/$NAME"x
+        cp -a "$BUILDDIR_PREFIX/docs/reference/thunar/html/." "/docs/$NAME"
+        cp -a "$BUILDDIR_PREFIX/docs/reference/thunarx/html/." "/docs/$NAME"x
       # Ditto for libxfce4windowing
       elif [[ "$NAME" == "libxfce4windowing" ]]; then
         mkdir -p "/docs/$NAME"{,ui}
-        cp -a docs/reference/libxfce4windowing/html/. "/docs/$NAME"
-        cp -a docs/reference/libxfce4windowingui/html/. "/docs/$NAME"ui
+        cp -a "$BUILDDIR_PREFIX/docs/reference/libxfce4windowing/html/." "/docs/$NAME"
+        cp -a "$BUILDDIR_PREFIX/docs/reference/libxfce4windowingui/html/." "/docs/$NAME"ui
       else
-        HTMLPATH=$(find "$(pwd)/docs" -name html)
+        HTMLPATH=$(find "$(pwd)/$BUILDDIR_PREFIX/docs" -name html)
         if [[ ! -z "$HTMLPATH" ]]; then
           mkdir -p "/docs/$NAME"
           cp -a "$HTMLPATH/." "/docs/$NAME"