basename function does nothing when it appears in prerequisites

[Manoj Srivastava]

Hi,

        [Please retain the CC to address@hidden so
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        contribution.]

        The following was reported by a Debian user for make 3.79.1

        manoj

The following sample makefile should not produce the error it does produce
(output follows the makefile).  The $(basename ...) function should work when
it appears in the prerequisites section of a rule, but it does nothing.


/var/tmp> mkdir test; cd test
/var/tmp/test> cat >>Makefile
# do this first:
# touch foo foo.ww.WW foo foo.yy.zz

all: $(addprefix foo., zz yy ww xx)
.PHONY: all

zz = $(basename foo.xx)

foo.zz: %: $(zz)
        @echo foo.zz deps should be foo and are $^

foo.yy: %: $(addsuffix .zz, %)
        @echo foo.yy deps should be foo.yy.zz and are $^

foo.ww: %: %.WW
        @echo foo.ww deps should be foo.ww.WW and are $^

foo.xx: %: $(basename %)
        @echo foo.xx deps should be foo and are $^

/var/tmp/test> touch foo foo.ww.WW foo foo.yy.zz
/var/tmp/test> ls -l
total 4
-rw-rw-r--    1 swift    swift           0 Aug 30 19:28 foo
-rw-rw-r--    1 swift    swift           0 Aug 30 19:28 foo.ww.WW
-rw-rw-r--    1 swift    swift           0 Aug 30 19:28 foo.yy.zz
-rw-rw-r--    1 swift    swift         410 Aug 30 19:27 makefile
/var/tmp/test> make
foo.zz deps should be foo and are foo
foo.yy deps should be foo.yy.zz and are foo.yy.zz
foo.ww deps should be foo.ww.WW and are foo.ww.WW
make: Circular foo.xx <- foo.xx dependency dropped.
foo.xx deps should be foo and are
/var/tmp/test> 


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Manoj Srivastava   <address@hidden>  <http://www.debian.org/%7Esrivasta/>
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