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Make and '+='

To: gcc at gcc dot gnu dot org
Subject: Make and '+='
From: "Zack Weinberg" <zackw at stanford dot edu>
Date: Fri, 15 Dec 2000 21:17:35 -0800

Does anyone know whether '+=' for Makefile variables is in POSIX or at
least universally supported?  It's not in the Open Group manpage, but
neither is VPATH.

zw

Follow-Ups:
- Re: Make and '+='
  - From: Alexandre Oliva
- Re: Make and '+='
  - From: Bill Wendling

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