From: Todd Vierling <tv@wasabisystems.com>
> Yes, and that's the point.  If the compiler doesn't support packed structs,
> the code should be uncompilable on that compiler.  (Otherwise you'll end up
> with nondescript errors and crashes thanks to the improper alignment of
> data in the struct.)

IIRC, unsupported #pragma will be just ignored.
so it should be compilable.

---
YAMAMOTO Takashi<yamt@mwd.biglobe.ne.jp>