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[patch #8462] missing .tag touch in ax_prog_doxygen.m4

From: anonymous
Subject: [patch #8462] missing .tag touch in ax_prog_doxygen.m4
Date: Thu, 15 May 2014 16:44:35 +0000
User-agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/35.0.1916.99 Safari/537.36


                 Summary: missing .tag touch in ax_prog_doxygen.m4
                 Project: GNU Autoconf Archive
            Submitted by: None
            Submitted on: Thu 15 May 2014 04:44:35 PM UTC
                Priority: 5 - Normal
                  Status: None
             Assigned to: None
        Originator Email: address@hidden
             Open/Closed: Open
         Discussion Lock: Any



The (commented-out) stanza

@DX_DOCDIR@/@address@hidden: $(DX_CONFIG) $(pkginclude_HEADERS)
        rm -rf @DX_DOCDIR@
        $(DX_ENV) $(DX_DOXYGEN) $(srcdir)/$(DX_CONFIG)

in ax_prog_doxygen.m4 should have an extra final line,

        echo Timestamp > $@

Without this, doxygen is run repeatedly, once for each target that depends on
@DX_DOCDIR@/@address@hidden, of which there can in general be many: once for
each man page, once for the PDF docs, once for the HTML docs, etc.  Doxygen is
also run, unnecessarily, at "make install" time, which is inappropriate.


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