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[bug #46585] variables being auto-exported to the environment if it was
From: |
Brian Vandenberg |
Subject: |
[bug #46585] variables being auto-exported to the environment if it was set in the environment |
Date: |
Wed, 02 Dec 2015 02:06:53 +0000 |
User-agent: |
Mozilla/5.0 (Windows NT 6.1; Win64; x64; Trident/7.0; rv:11.0) like Gecko |
URL:
<http://savannah.gnu.org/bugs/?46585>
Summary: variables being auto-exported to the environment if
it was set in the environment
Project: make
Submitted by: phantal
Submitted on: Wed 02 Dec 2015 02:06:52 AM GMT
Severity: 3 - Normal
Item Group: Bug
Status: None
Privacy: Public
Assigned to: None
Open/Closed: Open
Discussion Lock: Any
Component Version: 4.1
Operating System: Any
Fixed Release: None
Triage Status: None
_______________________________________________________
Details:
The short version:
* If a variable is set in the environment then you set the variable in a
makefile without the "export" keyword, it's auto-exported to the environment.
* If the variable is *not* set in the environment, the value set in the
makefile is *not* exported to the environment.
.RECIPEPREFIX := >
BLAH := from makefile
$(warning ${BLAH}, $(shell echo $$BLAH))
all:
> @echo In $@: ${BLAH}, should be from makefile
> @echo In $@: $$BLAH, should be from env
> @echo In $@: $(shell echo $$BLAH), should be from env
Executed with:
~ env BLAH="from env" gmake -f /tmp/makefile
/tmp/makefile:5: from makefile, from env
In all: from makefile, should be from makefile
In all: from makefile, should be from env
In all: from env, should be from env
~ gmake -f /tmp/makefile
/tmp/makefile:5: from makefile,
In all: from makefile, should be from makefile
In all: , should be from env
In all: , should be from env
I was under the impression that it would only export to the shell if you did
one of the following:
* "export" on a line by itself, forcing all variables to auto-export
* "export BLAH", or some variation thereof
... but it looks as though it's exporting always if it was set in the original
environment make was executed with.
_______________________________________________________
Reply to this item at:
<http://savannah.gnu.org/bugs/?46585>
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- [bug #46585] variables being auto-exported to the environment if it was set in the environment,
Brian Vandenberg <=