Problem with man page installation

[Marco Kuhlmann]

    Hi there.

I cannot manage to install man pages; my computer karma seems
to be at an all-time low. The attached Makefile.am properly
creates btparse.3, bt_language.3 and all the rest, but upon
installation, make finds nothing to do. The binaries and
libraries in the other directories of the distribution install
OK. I seem to miss something obvious hear. Can anybody help me?

    Cheers,
    Marco    
    
## Process this file with automake to produce Makefile.in

POD2MAN = @POD2MAN@

pod_files = btparse.pod bt_language.pod bt_input.pod bt_traversal.pod \
        bt_postprocess.pod bt_macros.pod bt_split_names.pod \
        bt_format_names.pod bt_misc.pod

man_MANS = $(patsubst %.pod,%.3,$(pod_files))

EXTRA_DIST = $(man_MANS)

## delete man pages at maintainer-clean
BUILT_SOURCES = $(man_MANS)

%.3: %.pod
        $(POD2MAN) \
                --section=3 \
                --release="btparse, version @PACKAGE_VERSION@" \
                --center="btparse" \
                --date="@RELEASE_DATE@" \
                $< > $@