U luatex/src/libs/lua51/liolib.c U luatex/src/texk/web2c/luatexdir/utils.c U luatex/src/texk/web2c/luatexdir/luatex.ch U luatex/src/texk/web2c/luatexdir/luatex.web U luatex/src/texk/web2c/luatexdir/lua/lcallbacklib.c U luatex/src/texk/web2c/luatexdir/ptexlib.h U luatex/src/texk/web2c/luatexdir/luatex.defines Checked out revision 189.