We don't want to add any declaration properties for the static library, as the static library doesn't export or import anything, so when STATIC_LIB is defined the libmosq_EXPORT defines to nothing

Signed-off-by: Ian Johnson <ijohnson@wolfram.com>

Adding the static library target, libmosquitto_static, to CMakeLists.txt so it gets installed, and when compiled STATIC_LIB gets defined for only the static library

Signed-off-by: Ian Johnson <ijohnson@wolfram.com>

Signed-off-by: Ian Johnson <ijohnson@wolfram.com>

Signed-off-by: Ian Johnson <ijohnson@wolfram.com>

[ci skip]

This may be useful for finding out which clients are using significant
amounts of persistence space.

Closes #3.

Add option -L to specify user, password, hostname, port and topic at once.
The URL must provided with the -L or --url in the form:
mqtt(s)://[username[:password]@]host[:port]/topic

Change-Id: Ia626a28981a38807a254ae32c6ffb29b122b8a28
Signed-off-by: Matteo Croce <matteo@openwrt.org>