correctly expanded in all shells.
VALAFLAGS="--target-glib=2.32 $VALAFLAGS"
-RYGEL_BASE_MODULES='gupnp-1.0 >= $GUPNP_REQUIRED gee-0.8 >= $GEE_REQUIRED'
+RYGEL_BASE_MODULES="gupnp-1.0 >= $GUPNP_REQUIRED gee-0.8 >= $GEE_REQUIRED"
PKG_CHECK_MODULES([LIBRYGEL_CORE_DEPS], [$RYGEL_BASE_MODULES uuid >= $UUID_REQUIRED gssdp-1.0 >= $GSSDP_REQUIRED gio-2.0 >= $GIO_REQUIRED gmodule-2.0 libxml-2.0 >= $LIBXML_REQUIRED])
RYGEL_BASE_MODULES_VALAFLAGS='--pkg gupnp-1.0 --pkg gee-0.8'
LIBRYGEL_CORE_DEPS_VALAFLAGS="$RYGEL_BASE_MODULES_VALAFLAGS --pkg gssdp-1.0 --pkg gio-2.0 --pkg gmodule-2.0"