Fix TZ on ESP8266

CL: Fix TZ on ESP8266

PUBLISHED_FROM=435a501a8b52524bccb67bb5a8ae7e09dfb4d44a

mongoose.h

@@ -603,10 +603,6 @@ typedef struct stat cs_stat_t;
 #define __cdecl
 #define _FILE_OFFSET_BITS 32
 
-#if !defined(RTOS_SDK) && !defined(__cplusplus)
-#define fileno(x) -1
-#endif
-
 #define MG_LWIP 1
 
 /* struct timeval is defined in sys/time.h. */

src/common/platforms/esp8266/common.mk

@@ -68,7 +68,7 @@ C_CXX_FLAGS  = -W -Wall -Werror -Wundef -Wno-comment -Wno-variadic-macros -Wpoin
                -DCS_PLATFORM=3 \
                -ffunction-sections -fdata-sections
 
-CFLAGS = -std=c99 $(C_CXX_FLAGS)
+CFLAGS = -std=gnu99 $(C_CXX_FLAGS)
 CXXFLAGS = -std=gnu++11 -fno-exceptions $(C_CXX_FLAGS)
 
 # linker flags used to generate the main object file

src/common/platforms/platform_esp8266.h

@@ -42,10 +42,6 @@ typedef struct stat cs_stat_t;
 #define __cdecl
 #define _FILE_OFFSET_BITS 32
 
-#if !defined(RTOS_SDK) && !defined(__cplusplus)
-#define fileno(x) -1
-#endif
-
 #define MG_LWIP 1
 
 /* struct timeval is defined in sys/time.h. */