[tz] [PATCH 0/1] Allow 'backzone' to be incorporated in 'right' data
eggert at cs.ucla.edu
Tue Sep 29 19:17:38 UTC 2015
On 09/29/2015 07:06 AM, Ian Abbott wrote:
> I think that would mean replacing the 'REDO' macro with separate
> macros to control whether the main set of data is 'posix' or 'right',
> whether the second (opposite) set of data is to be made available, and
> whether the 'backzone' data is to be incorporated
Yes, something like that. The basic idea is that the makefile should
grow linearly with the number of installation options, not exponentially.
> One thing I'm not too sure of is the portability of macro expansions
> such as $(TZDIR_$(SET1)) which might make this a non-starter!
Unfortunately you're right, it's not portable, as it doesn't work with
traditional 'make'. POSIX isn't clear in this area, but my best guess
is that POSIX doesn't require support for that sort of usage. Perhaps
use a recursive call to $(MAKE) instead?
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