Question about "#pragma pack(n)" and "-fpack-struct"

[feng qiu]

>James E Wilson wrote:
>-fpack-struct and #pragma pack(2) are contraditctory instructions, and
>-fpack-struct wins.   It was never the intent to allow both.  Current
>gcc sources will give a warning saying that the pragma pack is being
>ignored.  If you want some structures that aren't fully packed, then you
>can't use -fpack-struct.
>--

Is it difficult to modify the gcc sources if I want to use the both?

Thanks in advanced,
Feng Qiu

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