Re: toolchain/46750: make oddity expanding variables assigned to with +=

[David Holland <dholland-bugs%netbsd.org@localhost>]

The following reply was made to PR toolchain/46750; it has been noted by GNATS.

From: David Holland <dholland-bugs%netbsd.org@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: toolchain/46750: make oddity expanding variables assigned to
 with +=
Date: Mon, 30 Jul 2012 07:26:24 +0000

 On Sun, Jul 29, 2012 at 02:05:03PM +0000, David Laight wrote:
  >  This is the way make works.
  >  make variables hold character strings and have to maintain any
  >  embedded white space.
  >  In certain places the variable contents are treated as white-space
  >  separated tokens (usually filenames).
  >  
  >  Whitespace after = (or :=) can be removed, but whitespace
  >  after += must be kept - otherwise you can't build strings.
 
 That's not true - try it.
 
 -- 
 David A. Holland
 dholland%netbsd.org@localhost