kde/kded6: add GLESv2 cmake cache vars and libffi linker flags

local/recipes/kde/kf6-kded6/recipe.toml

@@ -26,6 +26,8 @@ sed -i "s/^ecm_install_po_files_as_qm/#ecm_install_po_files_as_qm/" \
 sed -i 's/^ki18n_install(po)/#ki18n_install(po)/' \
     "${COOKBOOK_SOURCE}/CMakeLists.txt" 2>/dev/null || true
 
+SYSROOT="${COOKBOOK_SYSROOT}"
+
 cmake "${COOKBOOK_SOURCE}" \
     -GNinja \
     -DCMAKE_MAKE_PROGRAM=/usr/bin/ninja \
@@ -36,6 +38,11 @@ cmake "${COOKBOOK_SOURCE}" \
     -DCMAKE_PREFIX_PATH="${COOKBOOK_SYSROOT};${HOST_BUILD}" \
     -DCMAKE_EXE_LINKER_FLAGS="-lffi -Wl,--copy-dt-needed-entries" \
     -DCMAKE_SHARED_LINKER_FLAGS="-lffi -Wl,--copy-dt-needed-entries" \
+    -DHAVE_GLESv2:INTERNAL=ON \
+    -DGLESv2_LIBRARY="${SYSROOT}/lib/libGLESv2.so" \
+    -DGLESv2_INCLUDE_DIR="${SYSROOT}/include" \
+    -DEGL_LIBRARY="${SYSROOT}/lib/libEGL.so" \
+    -DEGL_INCLUDE_DIR="${SYSROOT}/include" \
     -DBUILD_TESTING=OFF \
     -DBUILD_QCH=OFF \
     -Wno-dev