value of _CS_PATH\

DoneSubmitted by John Darrington.
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  • John Darrington
  • Ludovic Courtès
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John Darrington wrote on 25 Mar 2016 19:06
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Would it not be correct for guix to have
confstr (_CS_PATH, buf, len);
set the contents of buf with the bin directory of the currently installed coreutils package?
For me, it returns /bin:/usr/bin which is not correct.
J'
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Ludovic Courtès wrote on 5 Apr 2016 23:31
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(name . John Darrington)(address . john@darrington.wattle.id.au)(address . 23112@debbugs.gnu.org)
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John Darrington <john@darrington.wattle.id.au> skribis:
Toggle quote (9 lines)> Would it not be correct for guix to have >> confstr (_CS_PATH, buf, len);>> set the contents of buf with the bin directory of the currently > installed coreutils package?>> For me, it returns /bin:/usr/bin which is not correct.
Fixing it is a bit tricky because:
1. The meaning of this variable is ill-defined. Specifically, POSIX says it “is the value for the PATH environment variable that finds all standard utilities.” By “standard utilities”, surely they must be talking of ‘guile’, ‘guix’, ‘herd’, and a couple of others, but we can’t be sure. ;-)
http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/unistd.h.html
2. If CS_PATH refers to Coreutils, then that means that libc refers to Coreutils, which is inconvenient at best.
3. We could set CS_PATH to /run/current-system/profile/bin but that wouldn’t work on foreign distros.
So I’m inclined to leave things as is.
Did you find a situation where the invalid value was causing troubles?
Thanks,Ludo’.
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Ludovic Courtès wrote on 14 Apr 2016 22:30
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tags 23112 moreinfo
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Ludovic Courtès wrote on 3 May 2016 22:22
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Re: bug#23112: value of _CS_PATH\
(name . John Darrington)(address . john@darrington.wattle.id.au)(address . 23112@debbugs.gnu.org)
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ludo@gnu.org (Ludovic Courtès) skribis:
Toggle quote (29 lines)> John Darrington <john@darrington.wattle.id.au> skribis:>>> Would it not be correct for guix to have >>>> confstr (_CS_PATH, buf, len);>>>> set the contents of buf with the bin directory of the currently >> installed coreutils package?>>>> For me, it returns /bin:/usr/bin which is not correct.>> Fixing it is a bit tricky because:>> 1. The meaning of this variable is ill-defined. Specifically, POSIX> says it “is the value for the PATH environment variable that finds> all standard utilities.” By “standard utilities”, surely they must> be talking of ‘guile’, ‘guix’, ‘herd’, and a couple of others, but> we can’t be sure. ;-)>> http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/unistd.h.html>> 2. If CS_PATH refers to Coreutils, then that means that libc refers to> Coreutils, which is inconvenient at best.>> 3. We could set CS_PATH to /run/current-system/profile/bin but that> wouldn’t work on foreign distros.>> So I’m inclined to leave things as is.
I’ll close the bug if you don’t mind, but…
Toggle quote (2 lines)> Did you find a situation where the invalid value was causing troubles?
… I’m still interested in knowing this. :-)
TIA,Ludo’.
J
J
John Darrington wrote on 4 May 2016 07:45
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(name . Ludovic Court??s)(address . ludo@gnu.org)
20160504054537.GA9330@jocasta.intra
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On Tue, May 03, 2016 at 10:22:43PM +0200, Ludovic Court??s wrote: ludo@gnu.org (Ludovic Court??s) skribis: > John Darrington <john@darrington.wattle.id.au> skribis: > >> Would it not be correct for guix to have >> >> confstr (_CS_PATH, buf, len); >> >> set the contents of buf with the bin directory of the currently >> installed coreutils package? >> >> For me, it returns /bin:/usr/bin which is not correct. > > Fixing it is a bit tricky because: > > 1. The meaning of this variable is ill-defined. Specifically, POSIX > says it ???is the value for the PATH environment variable that finds > all standard utilities.??? By ???standard utilities???, surely they must > be talking of ???guile???, ???guix???, ???herd???, and a couple of others, but > we can???t be sure. ;-) > > http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/unistd.h.html > > 2. If CS_PATH refers to Coreutils, then that means that libc refers to > Coreutils, which is inconvenient at best. > > 3. We could set CS_PATH to /run/current-system/profile/bin but that > wouldn???t work on foreign distros. > > So I???m inclined to leave things as is. I???ll close the bug if you don???t mind, but???
OK > Did you find a situation where the invalid value was causing troubles? ??? I???m still interested in knowing this. :-)
I didn't find a technical trouble. Only political ones. TIA, Ludo???.
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Ludovic Courtès wrote on 4 May 2016 09:27
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tags 23112 wontfixclose 23112
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