Re: coreutils 7.1.49-ebb9 FTB risc/HP-UX

[Jim Meyering]

Matthew Woehlke wrote:

> Jim Meyering wrote:
>> Matthew Woehlke wrote:
>>> Jim Meyering wrote:
>>>> If someone cares enough about HP's C compiler, they teach
>>>> autoconf to detect this limitation and automatically add an
>>>> appropriate -H option, presumably to raise its internal limit.
>>> I'd love to help, but as mentioned, I have *no* idea how to feed
>>> options to cc so that it passes them to cpp.
>>
>> For you to get past this, try ./configure CPPFLAGS=-H...
>> where you choose the "..." part.
>
> I finally found this in the cc manpage (it's mis-formated and
> near-impossible to read; I missed it the first several times). Looks
> like it needs '-Wp,-H,1048576'. No I didn't write that wrong, the
> macro apparently expands to *over 180 kb*, and I'd like room to add
> one or two items. (I decided to verify that with 'gcc -E'... and yup,
> it's around 200 kb. *Still* don't think that's excessive?)

Ha!  Indeed.  180KB is excessive.

> Incidentally, this construct, which should produce the same result:
>
> MAX (
>  MAX (
>   MAX (
>    O_APPEND,
>    MAX (O_BINARY, O_CIO)
>   ),
>   MAX (
>    MAX (O_DIRECT, O_DIRECTORY),
>    MAX (O_DSYNC, O_NOATIME)
>   )
>  ),
>  MAX (
>   MAX (
>    O_NOCTTY,
>    MAX (O_NOFOLLOW, O_NOLINKS)
>   ),
>   MAX (
>    MAX (O_NONBLOCK, O_SYNC),
>    MAX (O_TEXT, 0)
>   )
>  )
> )
>
> ...expands to a measly 2 kb.

Better, indeed.
Would you like to prepare the patch?

  http://git.sv.gnu.org/cgit/coreutils.git/plain/HACKING