fix: more build function issues

src/libportal/pkg.sh

@@ -1,19 +1,29 @@
 NAME="libportal"
 DESC="GIO-style async APIs for most Flatpak portals"
 VERSION="0.6"
-FILES=("https://github.com/flatpak/libportal/releases/download/$VERSION/libportal-$VERSION.tar.xz")
+
+FILES=("https://github.com/flatpak/libportal/releases/download/${VERSION}/libportal-${VERSION}.tar.xz")
 HASHES=("e16c8ca2621aff64774a1d2ad6a2a346")
-DEPENDS=("gtk3" "gtk4" "qt5")
+
+DEPENDS=("glib")
+BUILD=(
+  "gtk3" "gtk4" "qt5"
+  "gobject-introspection" "meson" "vala"
+  "pypi-pytest"
+)
 
 PACKAGE() {
-  tar xf $NAME-$VERSION.tar.xz
-  cd $NAME-$VERSION
+  tar xf "${NAME}-${VERSION}.tar.xz"
+  cd "${NAME}-${VERSION}"
 
   mkdir build
   cd    build
 
-  meson setup --prefix=/usr --buildtype=release -Ddocs=false ..
-  ninja && DESTDIR="$ROOTDIR" ninja install
+  meson setup --prefix=/usr       \
+              --buildtype=release \
+              -Ddocs=false ..
+  ninja
+  DESTDIR="${ROOTDIR}" ninja install
 
-  cd ../.. && rm -r $NAME-$VERSION
+  cd ../.. && rm -r "${NAME}-${VERSION}"
 }