meson: error out if platforms contains empty string
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=110939 Signed-off-by: Tapani Pälli tapani.palli@intel.com
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=110939 Signed-off-by: Tapani Pälli tapani.palli@intel.com