License of libsdl source is LGPL. But libio ( a part of glibc) license is GPL with specital exceptin (As a special exception, if you link this library with files compiled with a GNU compiler to produce an executable, this does not cause the resulting executable to be covered by the GNU General Public License. ) and, libsdl (i386) package is compiled with nasm and linked libio. Sine nasm is not GNU compiler ,libsdl (i386) package license is GPL,isn't it?
-- TAJIRI Yasuhiro

