[bug #18116] filter_out functions seems to always return an empty result

[anonymous]

URL:
  <http://savannah.gnu.org/bugs/?18116>

                 Summary: filter_out functions seems to always return an
empty result
                 Project: make
            Submitted by: None
            Submitted on: jeudi 26.10.2006 à 09:43 UTC
                Severity: 3 - Normal
              Item Group: Bug
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
       Component Version: 3.81
        Operating System: POSIX-Based
           Fixed Release: None

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Details:

Here is an instance of Makefile that shows the issue (from the example given
in the manual):
### begin example
objects=main1.o foo.o main2.o bar.o
mains=main1.o main2.o
test=$(filter_out $(mains),$(objects))

all:
        @echo "objects: " $(objects)
        @echo "mains: " $(mains)
        @echo "test: "  $(test)

### end example
tmp $ make
objects:  main1.o foo.o main2.o bar.o
mains:  main1.o main2.o
test:

The last line of output should be test: foo.o bar.o
OTOH filter works as expected






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