代码中用到了开源解析工具rapidxml.hpp，里面有用到assert断言，编译的时候报错：
In file included from /usr/include/features.h:361:0,
from /usr/local/gcc-4.8.2/include/c++/4.8.2/x86_64-unknown-linux-gnu/bits/os_defines.h:39,
from /usr/local/gcc-4.8.2/include/c++/4.8.2/x86_64-unknown-linux-gnu/bits/c++config.h:426,
from /usr/local/gcc-4.8.2/include/c++/4.8.2/bits/stl_algobase.h:59,
from /usr/local/gcc-4.8.2/include/c++/4.8.2/list:60,
from ./src/include/service-rule/DCRule.h:28,
from ./src/include/service-rule/DCOweChargeRule.h:24,
from ./src/source/service-rule/DCOweChargeRule.cpp:21:
/usr/include/assert.h:66:1: error: expected constructor, destructor, or type conversion before 'extern'
__BEGIN_DECLS
检查了/usr/include/assert.h文件，里面用到__BEGIN_DECLS的这个宏，在/usr/include/sys/cdefs.h 中有定义，可是编译就是不通过，毫无头绪
跪求帮忙，
