Experimental Physics and
Industrial Control System

"J. Lewis Muir" <[email protected]> · Wed, 16 May 2018 17:22:18 -0500

On 05/16, J. Lewis Muir wrote:
> It was noted in a private email that the <nullhttpd>/src/nullhttpd.h
> header contains the following lines in a WIN32 ifdef which appear to add
> a library-search record to the object file and define _MT to 1:
> 
> ===
> #pragma comment(lib, "libcmt.lib")
> #pragma comment(lib, "wsock32.lib")
> #define _MT 1
> ===
> 
> I tried reverting the "/NODEFAULTLIB:LIBCMT.lib" change and
> commenting out the "libcmt.lib" pragma line and the _MT define
> line, but still no dice; it's the same error I got after making the
> "/NODEFAULTLIB:LIBCMT.lib" change (full output at the end of this
> email):
> 
> ===
> link -nologo -subsystem:windows -dll -LTCG -incremental:no -opt:ref -release       -implib:nullhttpd.lib -out:nullhttpd.dll         cgi.obj files.obj http.obj win32.obj config.obj format.obj server.obj main.obj
> server.obj : error LNK2001: unresolved external symbol __imp__MessageBoxA@16
> ===

After more web searching, I tried adding the following to the WIN32
ifdef in <nullhttpd>src/nullhttpd.h:

===
#pragma comment(lib, "user32.lib")
===

And now it compiles successfully!

But this is just a bunch of hacking; I don't know enough about Windows
to know what's the right thing to do.  I'll report back once I have
things narrowed down a bit.

Lewis

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System