Using both Paho-C and Paho-CPP

[KlaasVortex]

When building the library without SSL and STATIC options for C and CPP the C-library naming is wrong for CPP-lib. (As far as I can tell)

As far as I can tell all static libs are have -static attached to the name. Except on non-WIN32 systems, than this is addition is removed.
I am not sure why or if this is needed. But it does create some errors.
I also tracked what is going wrong at what place. Again if I understand the purpose correctly

I do build the C and CPP as seperate cmake_modules. So not using the [PAHO_WITH_MQTT_C] option

Using Libs C 1.3.13 CPP 1.4.0.1

build SSL = false, SHARED = false, STATIC = true
Building on Ubuntu 22 LTS

From C- source/CMakeList.txt Line 159 and Line 264

       IF (NOT WIN32)
            SET_TARGET_PROPERTIES(paho-mqtt3cs-static PROPERTIES OUTPUT_NAME paho-mqtt3cs)
            SET_TARGET_PROPERTIES(paho-mqtt3as-static PROPERTIES OUTPUT_NAME paho-mqtt3as)
        ENDIF()

This will create the lib with name -- libpaho-mqtt3cs.a

---

From CPP/CMakeList.txt Line 77

if(PAHO_BUILD_STATIC AND NOT PAHO_BUILD_SHARED)
  set(PAHO_MQTT_C_LIB ${PAHO_MQTT_C_LIB}-static)
endif()

This will create the name -- libpaho-mqtt3cs-static
So the CPP is looking for a lib that is NOT there.

A solution would be adding WIN32 as condition

if(PAHO_BUILD_STATIC AND WIN32 AND NOT PAHO_BUILD_SHARED)

Or keep the static addition to the name

       IF (0)
            SET_TARGET_PROPERTIES(paho-mqtt3cs-static PROPERTIES OUTPUT_NAME paho-mqtt3cs)
            SET_TARGET_PROPERTIES(paho-mqtt3as-static PROPERTIES OUTPUT_NAME paho-mqtt3as)
        ENDIF()

[icraggs]

@fpagliughi FYI