feat(mosq): Add support for linux build

Author: david-cermak

components/mosquitto/examples/broker/CMakeLists.txt

@@ -3,4 +3,14 @@
 cmake_minimum_required(VERSION 3.16)
 
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
+
+if("${IDF_TARGET}" STREQUAL "linux")
+    list(APPEND EXTRA_COMPONENT_DIRS
+            "../../../../common_components/linux_compat")
+            # "$ENV{IDF_PATH}/examples/protocols/linux_stubs/esp_stubs")
+
+endif()
+
+idf_build_set_property(MINIMAL_BUILD ON)
+
 project(broker)

components/mosquitto/examples/broker/main/example_broker.c

@@ -132,7 +132,8 @@ static void mqtt_app_start(struct mosq_broker_config *config)
 }
 #endif // CONFIG_EXAMPLE_BROKER_RUN_LOCAL_MQTT_CLIENT
 
-void app_main(void)
+// void app_main(void)
+int main(int argc, char *argv[])
 {
     ESP_ERROR_CHECK(nvs_flash_init());
     ESP_ERROR_CHECK(esp_netif_init());

components/mosquitto/port/broker.c

@@ -9,6 +9,8 @@
 #include "mosquitto_broker_internal.h"
 #include "memory_mosq.h"
 #include "mosq_broker.h"
+#include <time.h>
+#include <sys/time.h>
 
 static struct mosquitto__listener_sock *listensock = NULL;
 static int listensock_count = 0;

components/mosquitto/port/config.c

@@ -14,6 +14,7 @@
 #include "utlist.h"
 #include "lib_load.h"
 #include "syslog.h"
+#include <limits.h>
 #include "sdkconfig.h"
 
 

components/mosquitto/port/mosq_time.c

@@ -8,7 +8,7 @@
 
 #include <time.h>
 #include "time_mosq.h"
-
+#include "esp_err.h"
 #include "esp_timer.h"
 
 void mosquitto_time_init(void)

components/mosquitto/port/priv_include/config.h

@@ -17,7 +17,7 @@
 #include <ctype.h>
 #include "net/if.h"
 
-#undef  isspace
-#define isspace(__c) (__ctype_lookup((int)__c)&_S)
+// #undef  isspace
+// #define isspace(__c) (__ctype_lookup((int)__c)&_S)
 
 #define VERSION "v2.0.20~5"

components/mosquitto/port/priv_include/sys/syslog.h

@@ -30,6 +30,6 @@
 
 #define syslog(sev, format, ... ) ESP_LOG_LEVEL_LOCAL(sev-2,   "mosquitto", format, ##__VA_ARGS__)
 
-#define gai_strerror(x) "gai_strerror() not supported"
+// #define gai_strerror(x) "gai_strerror() not supported"
 #define openlog(a, b, c)
 #define closelog()