(if (eq (delivery-value :dll-exports) :no) :exe :dll)
defines whether the image is to be an executable or a dynamic library. The value can be :exe, :dll or :bundle. It defaults to
according to the value of
and therefore you do not normally need to supply
is used only when saving a dynamic library. On Mac OS X it generates an object of type "Mach-O bundle" and is used for creating shared libraries that will be used by applications that cannot load dylibs (FileMaker for example). It also does not force the filename extension to be
. On other Unix-like systems
merely has the effect of not forcing the filename extension of the delivered image, and the format of the delivered image is the same as the default. On Microsoft Windows
requires that the build machine has a C compiler installed. This is typically
(available by installing Xcode on the Macintosh).
is completely unrelated to the Mac OS X notion of an application bundle.
LispWorks Delivery User Guide - 13 Dec 2011