On Tue, 2005-04-05 at 21:20, feng qiu wrote: > In c-pragma.c file, #pragma pack(n) set the value of > "maximum_field_alignment". > And in opts.c file,-fpack-struct set "flag_pack_struct = 1" . > But I don't known the relation between them.
Try using grep, as in "grep flag_pack_struct *.c" and "grep maximum_field_alignment *.c". > It seems that they relate to the four ariablesââ > DECL_ALIGN,DECL_PACKED,TYPE_PACKED,and TYPE_ALIGN in stor-layout.c file,but > what is the difference in them?Should I modify this file? If you really want to modify files, and submit a patch, you have to use current mainline sources. This stuff works differently on mainline than it does in the older sources you are looking at. We can't accept a patch based off of an older release. Yes, you are looking in the right place. TYPE_PACKED and maximum_field_alignment are the important ones for this particular problem. -- Jim Wilson, GNU Tools Support, http://www.SpecifixInc.com
