** Reply to note from "Konstantin Sharenkov via RT" <[EMAIL PROTECTED]> Wed, 26
Oct 2005 11:36:41 +0200 (METDST)
Hi,
> but nt.mak contins line
>
> CFLAG= /MD /Ox /O2 /Ob2 /W3 /WX /Gs0 /GF /Gy /nologo
> -DOPENSSL_SYSNAME_WIN32 -DWIN32_LEAN_AND_MEAN -DL_ENDIAN -DDSO_WIN32
> -D_CRT_SECURE_NO_DEPRECATE -DBN_ASM -DMD5_ASM -DSHA1_ASM -DRMD160_ASM
> /Fdout32 -DOPENSSL_NO_RC5 -DOPENSSL_NO_MDC2 -DOPENSSL_NO_KRB5
>
>
>
> The first option is /MD - Multithreaded DLL code generation
>
> But for static library option should be /MT Multithreaded code
> generation
Not really, IMHO. Note that /MD or /MT is just about whether you
want your (static) library to be used with the static C library
or with the DLL.
There are a number of reasons why using the DLL version of the C library
is preferable, most significantly it's more widely usable (using the
static C library typically implies that you cannot load DLLs without a
high probability of erratic runtime behaviour and crashes), so if you
are statically linking openssl lib against _several_ applications and
can't be sure that none of them will _ever_ use _any_ DLL in advance,
compiling with /MD is the better way to go. If you do network installations
that are going to be used by several people, that's even more true.
In short /MD is slightly more flexible and the risk that MS is actually
breaking msvcrt.dll in an update has come quite close to 0 in the past
7 or so years.
> With /MD I have a typical problem (for mixed code generation) during
> linking my application.
>
> With /MT everything is ok.
Over here, for _my_ application, everything is ok with /MD and /MT would
be causing problems, so it's obviously impossible to do it in a way that
makes everyone happy - unless, of course, you add even more variants to
the makefile, which OTOH would cause additional confusion...
Regards,
Stefan
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