Date: Fri, 2 May 2014 08:10:33 +0300 From: Timo Teras <timo.teras@....fi> To: Timo Teras <timo.teras@....fi> Cc: musl@...ts.openwall.com, josiahw@...il.com Subject: Re: Re: ctime, timezone? On Fri, 2 May 2014 08:06:56 +0300 Timo Teras <timo.teras@....fi> wrote: > On Thu, 1 May 2014 17:18:32 -0500 > Josiah Worcester <josiahw@...il.com> wrote: > > > On Thu, May 1, 2014 at 5:00 PM, John Mudd <johnbmudd@...il.com> > > wrote: > > > > > Hmm, I'd like to install my app at 4,000 locations around the > > > country. Can I avoid explicitly setting $TZ? > > > > > > > > With unpatched musl, not really. In the do_tzset function in > > __tz.c, I think changing the > > "if (!s || !*s) s = __gmt;" to simply "if (!s || !*s) s = > > "/etc/localtime";" should do it, though I wouldn't say for sure > > without testing. > > If you simply don't want to have to deal with manually setting TZ to > > match the /etc/localtime definition everywhere, TZ=/etc/localtime > > should suffice. > > This will not work for setuid programs. > > I patched musl with: > http://git.alpinelinux.org/cgit/aports/plain/main/musl/2001-default-to-localtime-timezone-if-TZ-is-undefined.patch > > This needs latest musl git head to work. > > And we configured Alpine to setup /etc/zoneinfo/localtime as symlink > to the proper place. > > With the patch you could also symlink /etc/zoneinfo/localtime > -> /etc/localtime and then it'd just work. Or ship /usr/share/zoneinfo/localtime -> /etc/localtime symlink with your libc package. I think this is how it's often done with glibc. The TZ=":name" files are searched from: /usr/share/zoneinfo/ /share/zoneinfo/ /etc/zoneinfo/ - Timo
Powered by blists - more mailing lists
Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.