_GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM  456 lib/stdio.in.h                   _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (2, 3)
_GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM 1102 lib/stdio.in.h                     _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (1, 2)
_GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM 1531 lib/stdio.in.h                   _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (2, 0)
_GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM 1596 lib/stdio.in.h                                 _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (1, 0)