Date: Sun, 30 Apr 1995 14:51:11 +0400 From: "Andrey A. Chernov, Black Mage" <ache@astral.msk.su> To: Garrett Wollman <wollman@halloran-eldar.lcs.mit.edu> Cc: CVS-commiters@freefall.cdrom.com, cvs-sys@freefall.cdrom.com Subject: Re: cvs commit: src/sys/sys unistd.h Message-ID: <nCVksel0wJ@astral.msk.su> In-Reply-To: <9504291825.AA22822@halloran-eldar.lcs.mit.edu>; from Garrett Wollman at Sat, 29 Apr 1995 14:25:39 -0400 References: <199504291420.HAA26427@freefall.cdrom.com> <9504291825.AA22822@halloran-eldar.lcs.mit.edu>
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In message <9504291825.AA22822@halloran-eldar.lcs.mit.edu> Garrett
Wollman writes:
><<On Sat, 29 Apr 1995 07:20:38 -0700, "Andrey A. Chernov" <ache@freefall.cdrom.com> said:
>> Enable _POSIX_SAVED_IDS and fix comment to describe current situation
>This should be left undefined so that programs call
>sysconf(_SC_SAVED_IDS) instead.
No. POSIX says then they sysconf() return parameter value
at _runtime_ and unistd.h have parameter value for
_compile time_. It two is completely different styles.
Program can do dinamic switch at runtime and static switch at
compile time.
Currently we have not only _POSIX_SAVED_IDS but _many_ parameters of such
kind in unistd.h (duplicated via sysconf), it helps to #ifdef
some things at compile time. I know some pgms which use
_POSIX_SAVE_IDS for #ifdef and no one which use sysconf(_SC_SAVED_IDS)
--
Andrey A. Chernov : And I rest so composedly, /Now, in my bed,
ache@astral.msk.su : That any beholder /Might fancy me dead -
FidoNet: 2:5020/230.3 : Might start at beholding me, /Thinking me dead.
RELCOM Team,FreeBSD Team : E.A.Poe From "For Annie" 1849
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