Added new cmake variable SHARED_LIBRARY. By default is on.
When it is off QCA library, plugins, tools, examples and unittests
will be built as static. Also if is used static Qt plugins will be
built as static. Tested with Qt4.
that aren't reliably supported by OpenSSL (i.e. some versions
do, but later versions often don't).
This test will always be a bit brittle, because distros can
customise the build of OpenSSL so much.
svn path=/trunk/kdesupport/qca/; revision=707705