On Sun, 2013-01-06 at 12:30 -0500, Gary Oberbrunner wrote: > Someone at my work recently discovered that updating SCons to 2.2.0 breaks > his build. The reason is it now puts /usr/local/bin in the PATH > (env['PATH']) before /usr/bin (or sth similar). He has a bad version of a > utility in /usr/local/bin, which now gets used instead of the right one. I > was worried that this might happen. He bisected to find the change that > did it, and I've included his analysis below. > > There are several things we can do: > 1. do nothing, that's just how it is now.
I have to admit, this is my choice. /usr/local/bin should precede /usr/bin in the path exactly because it is /usr/local/bin. Can I argue that the fact that your colleague has a f##### u# system should not drive SCons development? The solution is for your colleague to remove the broken system from /usr/local/bin :-) > 2. make the LaTeX stuff use absolute paths rather than relying on > env['PATH'] > 3. Somehow set PATH only for that tool, without mucking with the standard > PATH. > > I don't like #2, it's ugly. #1 is easiest, but since our goal is to make > reproducible builds, modifying the path globally is not ideal. That leaves > us with #3. I don't have any ideas off the top of my head for how to > handle that; does anyone? > > Which leads me to toolchain revamp. I'm going to write up a message about > this shortly; I think it should be one of our highest priority projects for > 2013 (along with several others), and I'm willing to take it on. I don't have many free cycles for the next three months, but I can chip in as and when. -- Russel. ============================================================================= Dr Russel Winder t: +44 20 7585 2200 voip: sip:[email protected] 41 Buckmaster Road m: +44 7770 465 077 xmpp: [email protected] London SW11 1EN, UK w: www.russel.org.uk skype: russel_winder
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