Merge pull request #18924 from snar/enable-kafka-on-freebsd

Restore kafka on freebsd

cmake/find/rdkafka.cmake

-# Freebsd: contrib/cppkafka/include/cppkafka/detail/endianness.h:53:23: error: 'betoh16' was not declared in this scope
-if (NOT ARCH_ARM AND NOT OS_FREEBSD AND OPENSSL_FOUND)
+if (NOT ARCH_ARM AND OPENSSL_FOUND)
     option (ENABLE_RDKAFKA "Enable kafka" ${ENABLE_LIBRARIES})
 elseif(ENABLE_RDKAFKA AND NOT OPENSSL_FOUND)
     message (${RECONFIGURE_MESSAGE_LEVEL} "Can't use librdkafka without SSL")

contrib/librdkafka-cmake/config.h.in

@@ -83,7 +83,8 @@
 #if (__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ <= 101400)
 #define _TTHREAD_EMULATE_TIMESPEC_GET_
 #endif
-
+#elif defined(__FreeBSD__)
+#define HAVE_PTHREAD_SETNAME_FREEBSD 1
 #else
 // pthread_setname_gnu
 #define HAVE_PTHREAD_SETNAME_GNU 1