URL:
<http://savannah.gnu.org/bugs/?49183>
Summary: Macros set in MAKEFLAGS should not be added to the
environment
Project: make
Submitted by: psmith
Submitted on: Sun 25 Sep 2016 04:07:02 PM EDT
Severity: 3 - Normal
Item Group: Enhancement
Status: None
Privacy: Public
Assigned to: None
Open/Closed: Open
Discussion Lock: Any
Component Version: 4.2.1
Operating System: Any
Fixed Release: None
Triage Status: None
_______________________________________________________
Details:
The upcoming POSIX spec specifies that macro assignments added to the
MAKEFLAGS variable should not be added into make's environment (or exported
into the environment of commands that make invokes).
Text from the draft of the standard:
Before the makefile(s) are read, all of the make utility command line
macro definitions (except the
MAKEFLAGS macro or the SHELL macro) shall be added to the
environment of make. Other
+ implementation-defined variables may also be added to the
environment of make. Macros
+ defined by the MAKEFLAGS environment variable and macros defined in the
makefile(s) shall
+ not be added to the environment of make if they are not already in its
environment. With the
+ exception of SHELL (see below), it is unspecified whether macros defined
in these ways update
the value of an environment variable that already exists in the
environment of make.
(changes to the standard are marked with "+"). Currently, make will add those
macros to the environment:
$ echo 'all:;@echo FOO=$$FOO' | MAKEFLAGS=FOO=bar make -f-
FOO=bar
See also this thread in bug-make:
http://lists.gnu.org/archive/html/bug-make/2016-09/msg00030.html
_______________________________________________________
Reply to this item at:
<http://savannah.gnu.org/bugs/?49183>
_______________________________________________
Message sent via/by Savannah
http://savannah.gnu.org/
_______________________________________________
Bug-make mailing list
Bug-make@gnu.org
https://lists.gnu.org/mailman/listinfo/bug-make
