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

[Edgar Fuß <ef%math.uni-bonn.de@localhost>]

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

From: =?iso-8859-1?Q?Edgar_Fu=DF?= <ef%math.uni-bonn.de@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: toolchain/46750: make oddity expanding variables assigned to with 
+=
Date: Sun, 29 Jul 2012 16:20:31 +0200

 > This is the way make works.
 Then either the first element (e.g. :[1]) should be empty or start with =
 a space.
 You currently get different results from
 - asking for the whole value, which should be a space-separated list =
 (you get " foo bar")
 - asking explicitly for a space-separated list (you get "foo bar")
 - asking for the individual elements and space-joining them (you get =
 "foo bar")
 
 > Whitespace after =3D (or :=3D) can be removed, but whitespace
 > after +=3D must be kept - otherwise you can't build strings.
 The manpage says (for all variants of assignments):
        Any white-space before the assigned value is removed=