Fixes GCC 8 warning:
dll/win32/oleaut32/oleaut.c:876:39: error: '%s' directive writing up to 99 bytes into a region of size between 92 and 291 [-Werror=format-overflow=]
sprintf(typelibkey, "Typelib\\%s\\%s\\0\\win%u", tlguid, ver, sizeof(void *) == 8 ? 64 : 32);
^~ ~~~
dll/win32/oleaut32/oleaut.c:876:5: note: 'sprintf' output between 18 and 316 bytes into a destination of size 300
sprintf(typelibkey, "Typelib\\%s\\%s\\0\\win%u", tlguid, ver, sizeof(void *) == 8 ? 64 : 32);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
There is no need to compile our DLLs as shared libraries since we are
managing symbols exports and imports through spec files.
On my system, this reduces the configure-time by a factor of two.
