Re: Version display: included vs. system libraries

[ambarisha b <b.ambarisha () gmail com>]

Sure, I will get back once I am done.

Ambarisha

On Sat, Feb 19, 2011 at 2:42 AM, David Fifield <david () bamsoftware com> wrote:
> On Thu, Feb 10, 2011 at 09:58:51AM +0530, ambarisha b wrote:
> > I like "nmap-" prefix because changing the library name indicates that
> > the library might have been edited for nmap as in libdnet.The other
> > two seem to indicate that we have just included the actual libraries
> > with nmap.
>
> Okay, let's go with this. Option 2, the "nmap-" prefix. Would you like
> to implement this, Ambarisha?
>
> What you will need to do is find the places in configure.ac where the
> included libraries are used. Then define a macro that we can test within
> the program. For example, for libpcap, it will be something like this:
>
> if test $have_libpcap != yes; then
>  AC_CONFIG_SUBDIRS(libpcap)
>  if test "${LIBPCAP_INC+set}" = "set"; then
>    CPPFLAGS="$CPPFLAGS -I$LIBPCAP_INC"
>  else
>    CPPFLAGS="$CPPFLAGS -I\$(top_srcdir)/$libpcapdir"
>  fi
>  LIBPCAP_LIBS='$(LIBPCAPDIR)/libpcap.a'
>  PCAP_DEPENDS='$(LIBPCAPDIR)/libpcap.a'
>  PCAP_BUILD="pcap_build"
>  PCAP_CLEAN="pcap_clean"
>  PCAP_DIST_CLEAN="pcap_dist_clean"
>  # This is the added line.
>  AC_DEFINE(PCAP_INCLUDED)
> else
>
> You will then need to run the "autoconf" program to regenerate configure
> from configure.ac. Also you will need to add a line for PCAP_INCLUDED to
> nmap_config.h, following the format of the other lines in that file.
>
> Then, in display_nmap_version, output the "nmap-" or not, depending on
> whether PCAP_INCLUDED is defined.
>
> The above instructions may not be completely correct but are probably
> pretty close.
>
> David Fifield
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