disable ACL_PRINTF when gcc's version < 4.4

lib_acl_cpp/Makefile

@@ -54,10 +54,6 @@ ifeq ($(findstring g++, $(CC)), g++)
 	ifeq ($(GCC_VER), true)
 		CFLAGS += -Wno-implicit-fallthrough
 	endif
-	GCC_VER:=$(shell [ $(GCC_MAJOR) -lt 4 -o \( $(GCC_MAJOR) -eq 4 -a $(GCC_MINOR) -ge 1 \) ] && echo true)
-	ifeq ($(GCC_VER), true)
-		CFLAGS += -DGCC_LOW
-	endif
 endif
 
 ifeq ($(AR),)

lib_acl_cpp/include/acl_cpp/stdlib/snprintf.hpp

@@ -14,8 +14,12 @@ namespace acl {
  *     >= size；需要注意该返回值的含义与 _WIN32 下的不同
  *  2) _WIN32 平台下返回 -1
  */
+#if defined(__GNUC__) && (__GNUC__ > 4 ||(__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
 ACL_CPP_API int ACL_CPP_PRINTF(3, 4) safe_snprintf(char *buf, size_t size,
 	const char *fmt, ...);
+#else
+ACL_CPP_API int safe_snprintf(char *buf, size_t size, const char *fmt, ...);
+#endif
 
 /**
  * 标准 C snprintf API 封装，可以保证结果缓冲区中的最后一个字节为 '\0'

lib_acl_cpp/src/stdlib/snprintf.cpp

@@ -70,11 +70,7 @@ int safe_vsnprintf(char *buf, size_t size, const char *fmt, va_list ap)
 
 #else
 
-#ifdef GCC_LOW
-int safe_snprintf(char *buf, size_t size, const char *fmt, ...) throw()
-#else
 int safe_snprintf(char *buf, size_t size, const char *fmt, ...)
-#endif
 {
 	va_list ap;