Problem: CMake does not check for TIPC support

Solution: add macro in ZMQSourceRunChecks.cmake and optionally
include the TIPC sources if the support is available.
More importantly, only run the TIPC tests if the support is there.

CMakeLists.txt

@@ -282,6 +282,7 @@ zmq_check_tcp_keepcnt ()
 zmq_check_tcp_keepidle ()
 zmq_check_tcp_keepintvl ()
 zmq_check_tcp_keepalive ()
+zmq_check_tcp_tipc ()
 
 
 if (    CMAKE_SYSTEM_NAME MATCHES "Linux"
@@ -550,6 +551,11 @@ if (WITH_VMCI)
     list (APPEND cxx-sources vmci_address.cpp vmci_connecter.cpp vmci_listener.cpp vmci.cpp)
 endif (WITH_VMCI)
 
+if (ZMQ_HAVE_TIPC)
+    add_definitions (-DZMQ_HAVE_TIPC)
+    list (APPEND cxx-source tipc_address.cpp tipc_connecter.cpp tipc_listener.cpp)
+endif (ZMQ_HAVE_TIPC)
+
 #-----------------------------------------------------------------------------
 # source generators
 

builds/cmake/Modules/ZMQSourceRunChecks.cmake

@@ -127,3 +127,37 @@ int main(int argc, char *argv [])
 "
     ZMQ_HAVE_TCP_KEEPALIVE)
 endmacro()
+
+
+macro(zmq_check_tcp_tipc)
+  message(STATUS "Checking whether TIPC is supported")
+  check_c_source_runs(
+    "
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/socket.h>
+#include <linux/tipc.h>
+
+int main(int argc, char *argv [])
+{
+    struct sockaddr_tipc topsrv;
+    int sd = socket(AF_TIPC, SOCK_SEQPACKET, 0);
+    if (sd == -EAFNOSUPPORT) {
+        return 1;
+    }
+    memset(&topsrv, 0, sizeof(topsrv));
+    topsrv.family = AF_TIPC;
+    topsrv.addrtype = TIPC_ADDR_NAME;
+    topsrv.addr.name.name.type = TIPC_TOP_SRV;
+    topsrv.addr.name.name.instance = TIPC_TOP_SRV;
+    fcntl(sd, F_SETFL, O_NONBLOCK);
+    if (connect(sd, (struct sockaddr *)&topsrv, sizeof(topsrv)) != 0) {
+        if (errno != EINPROGRESS)
+            return -1;
+    }
+}
+"
+    ZMQ_HAVE_TIPC)
+endmacro()

tests/CMakeLists.txt

@@ -93,15 +93,19 @@ if(NOT WIN32)
   if(CMAKE_SYSTEM_NAME MATCHES "Linux")
     list(APPEND tests
           test_abstract_ipc
-          test_pair_tipc
-          test_reqrep_device_tipc
-          test_reqrep_tipc
-          test_router_mandatory_tipc
-          test_sub_forward_tipc
-          test_connect_delay_tipc
-          test_shutdown_stress_tipc
-          test_term_endpoint_tipc
     )
+    if(ZMQ_HAVE_TIPC)
+      list(APPEND tests
+            test_pair_tipc
+            test_reqrep_device_tipc
+            test_reqrep_tipc
+            test_router_mandatory_tipc
+            test_sub_forward_tipc
+            test_connect_delay_tipc
+            test_shutdown_stress_tipc
+            test_term_endpoint_tipc
+      )
+    endif()
   endif()
 endif()