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Article #371: Why Does FLTK Use the DLL Link Model?
Created at 10:59 Jan 29, 2005 by mike
Microsoft's fundamental problem with its three different
styles (actually six) of linking libraries is exactly that: a
The word DLL in the linker setting is completely misleading.
What it means is that your application and any STATIC libraries
in your app will be linked against the DYNAMIC stdc libraries.
The library that you create can still be dynamic or static.
Failing to link with the dynamic stdc libaries will generate
a new instance of the stdc library for every lib that you link
with. Every stdc library has its own heap, its own static
variables, and needs its own full space. And now you are in big
Example: you have two libraries, statically linked, both
created with single- or multi-threaded, but not with the DLL
option. If your application now uses the one library to allocate
some memory space, it uses the stdc library in the first
library. If for whatever reason you free the same space from
within the other library, your application will crash because it
can't find the block that you free in its heap - with a good
chance of creating the BSOD on Win9x/Me.
As a nice extra effect of using DLL, your code will be a few
100k less per library that you link.
That's why we do not provide the other methods. If you
believe you MUST use another model, it is as simple as changing
a single pulldown menu in the linker settings.
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