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Re: CRT-libs on MSVC
From: David Fifield <david () bamsoftware com>
Date: Sat, 26 Jan 2013 09:05:46 -0800

On Sat, Jan 26, 2013 at 04:54:24PM +0100, Gisle Vanem wrote:
"David Fifield" <david () bamsoftware com> wrote:

It looks like it was r8507 in 2008. nmap.vcxproj uses /MD
(Multi-threaded DLL) in Release configuration and /MTd (Multi-threaded
debug) in Debug configuration. (Right-click the project, Properties,
C/C++, Code Generation, Runtime Library.)

Ok. I assumed both release/debug used the same base "model". A
bit strange to use '/MD' and '/MTd' for release/debug. But as you
say ..

In Release mode we do use /MD, I think specifically because of OpenSSL.

I think the reason for this is long forgotten and not an issue
anymore. According to OpenSSL FAQ on the "applink" + '/MD' issue
things changed in ver. 0.9.8. Which is some time ago. Also see:
 http://openssl.6102.n7.nabble.com/applink-c-OPENSSL-Applink-small-C-snippet-td38890.html

I don't remember what the purpose of applink is, you'll have to search
the commit logs.

I've briefly read the applink.c/uplink.c sources in OpenSSL. It's
just a hack not needed anymore for the conditions nmap requires.
I.e. since MingW doesn't seems to supported in nmap, is it not safe
to assume all components
are built with the compiler (MSVC)?

A short test here w/o applink.c in ncat_ssl.c shows no errors:

shell-1: ncat --ssl --exec="cmd /c dir" -kvl localhost 80
shell-2: curl -vk  https://localhost:80/

gives correct output.

Is there a reason that the applink is causing you trouble? I'm reluctant
to change anything that is working and was hard to debug in the first
place. If you have a patch and if it simplifies the build process or has
other benefits, we may include it. You have to explain the benefits
though.

David Fifield
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