> No. It's not needed all that much, since you can find the alignment > of a type in C. Yes, but unfortunately i am working on a bytecode interpreter for and written in another language. To find the right alignment for data on the heap, i would need that information at configure time, and substitute it throughout the source code (written in the other language). I could write an autoconf test in C, but that unfortunately doesn't work when cross compiling :-( > like AC_CHECK_SIZEOF. The only real advantage of this would be that > you could use the alignments in #if expressions. And in the case where you want to subtitute it in other files. cheers, Remko