This is needed from the Visual C++ GUI build, not only from make, and
the GUI doesn't have a way to generate this file.
It may be possible to have a Visual Basic script to the automatic
updating of the version number, according to this article.
http://support.microsoft.com/kb/237870
Make new versioned nmap.rc.in and nsis/Nmap.nsi.in, and use those to
generate unversioned nmap.rc and nsis/Nmap.nsi. The changes made to
those files were constantly causing problems with updating.
The necessary libraries (lib and dll) and headers required for compilation and
linking are in mswin32/OpenSSL. A detailed upgrade guide is available in
mswin32/OpenSSL/upgrade-guide.txt.
Thanks to Thomas Buchanan for doing the initial work and writing up the initial
build guide.
My openssl-testing branch has been posted on nmap-dev for 12 days and has been
tested by (at least) Thomas, Jah and I, with no reports of failure.
http://seclists.org/nmap-dev/2008/q2/0249.html
