msys: Fix DLL dependency linkage #128
Open
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Windows DLLs can't contain unresolved symbols. Therefore systemc,
when built with MSYS2, is split in two libraries:
systemc-<version>.dll
without unresolved symbols and
systemc.a
with unresolved symbols.Currently, cmake target
systemc
(exposingsystemc.a
) is aliased asSystemC::systemc
This leads to a situation where projects that depend
SystemC::systemc
would link only against the
systemc.a
and drop thedll
.This commit introduces the interface target library
systemc_if
,which links against
systemc
dll and static and is aliased asSystemC::systemc
.To insure backward compatibility, this mechanism is enabled only
when systemc is built as a shared library