[bug #35323] When the environment is modified with export or undefine, $(shell ...) still inherits the original environment

[Brian Vandenberg]

URL:
  <http://savannah.gnu.org/bugs/?35323>

                 Summary: When the environment is modified with export or
undefine, $(shell ...) still inherits the original environment
                 Project: make
            Submitted by: phantal
            Submitted on: Tue 17 Jan 2012 09:00:02 PM GMT
                Severity: 3 - Normal
              Item Group: Bug
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
       Component Version: 3.82
        Operating System: Any
           Fixed Release: None
           Triage Status: None

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Details:

Example:


undefine LD_LIBRARY_PATH
$(warning $(shell echo "From $$(shell ...): $$LD_LIBRARY_PATH"))

all:
  @echo "From $@: $$LD_LIBRARY_PATH"



The $(warning ) will print the original LD_LIBRARY_PATH.

As you might expect, variations on this theme are no different; all of the
following have identical results:

export undefine LD_LIBRARY_PATH

undefine LD_LIBRARY_PATH
export LD_LIBRARY_PATH

undefine LD_LIBRARY_PATH
export LD_LIBRARY_PATH:=




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