Added the (possibly modified) Espressif SDK to the project to avoid problems with building. This may not be OK license wise, but who cares

esp_iot_sdk_v1.5.2/include/mem.h

@@ -0,0 +1,57 @@
+#ifndef __MEM_H__
+#define __MEM_H__
+
+/* Note: check_memleak_debug_enable is a weak function inside SDK.
+ * please copy following codes to user_main.c.
+#include "mem.h"
+
+bool ICACHE_FLASH_ATTR check_memleak_debug_enable(void)
+{
+    return MEMLEAK_DEBUG_ENABLE;
+}
+*/
+
+#ifndef MEMLEAK_DEBUG
+#define MEMLEAK_DEBUG_ENABLE	0
+#define os_free(s)        vPortFree(s, "", 0)
+#define os_malloc(s)      pvPortMalloc(s, "", 0)
+#define os_calloc(s)      pvPortCalloc(s, "", 0);
+#define os_realloc(p, s)  pvPortRealloc(p, s, "", 0)
+#define os_zalloc(s)      pvPortZalloc(s, "", 0)
+#else
+#define MEMLEAK_DEBUG_ENABLE	1
+
+#define os_free(s) \
+do{\
+	static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;	\
+    vPortFree(s, mem_debug_file, __LINE__);\
+}while(0)
+
+#define os_malloc(s)	\
+	({	\
+		static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;	\
+		pvPortMalloc(s, mem_debug_file, __LINE__);	\
+	})
+
+#define os_calloc(s)	\
+	({	\
+		static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;	\
+		pvPortCalloc(s, mem_debug_file, __LINE__);	\
+	})
+
+#define os_realloc(p, s)	\
+	({	\
+		static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;	\
+		pvPortRealloc(p, s, mem_debug_file, __LINE__);	\
+	})
+
+#define os_zalloc(s)	\
+	({	\
+		static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;	\
+		pvPortZalloc(s, mem_debug_file, __LINE__);	\
+	})
+
+#endif
+
+#endif
+