Problem: Findlibzmq.cmake doesn't work on Win32

[myd7349]

Findlibzmq.cmake doesn't work out-of-box on Win32.
libzmq dll/lib built with MSVC is named using the Boost convention(something like libzmq-mt-4_3_1.lib, libzmq-mt-4_3_1.dll): https://github.com/zeromq/libzmq/blob/master/CMakeLists.txt#L1147-L1173
So find_library (LIBZMQ_LIBRARIES NAMES zmq HINTS ${PC_LIBZMQ_LIBRARY_HINTS}) will not work.

This patch tries to solve the libzmq not found error on Win32 with CMake:
zeromq/czmq#1972 (comment)
zeromq/czmq#2004

[myd7349]

I'm not sure if it the best way to solve this problem. If there is a better one, just let me know.

[bluca]

Does it have to be specific to libzmq? Shouldn't it be a general solution for all libraries?

[myd7349]

@bluca Thanks!
AFAIK, only a few of libraries(ZeroMQ, Boost) built on Windows use this naming strategy. So there is no need to be a general solution currently.
Some other libraries may use a totally different strategy. For example, I found some libraries built in Debug mode contains a d suffix. And for these libraries, neither of the two solution will work.