求救：在CentOS6.0 下安装NS-allinone-2.27出问题了
l.o Tcl.cc
Tcl.cc: In member function ‘void Tcl::eval(char*)’:
Tcl.cc:180: warning: deprecated conversion from string constant to ‘char*’
Tcl.cc: In member function ‘int TclObject::traceVar(const char*, TclObject*)’:
Tcl.cc:419: warning: deprecated conversion from string constant to ‘char*’
Tcl.cc: In static member function ‘static int TclClass::create_shadow(void*, Tcl_Interp*, int, const char**)’:
Tcl.cc:507: warning: deprecated conversion from string constant to ‘char*’
Tcl.cc:509: warning: deprecated conversion from string constant to ‘char*’
Tcl.cc: In static member function ‘static int TclClass::dispatch_instvar(void*, Tcl_Interp*, int, const char**)’:
Tcl.cc:564: error: invalid conversion from ‘const char*’ to ‘char*’
Tcl.cc:569: warning: deprecated conversion from string constant to ‘char*’
Tcl.cc: In member function ‘virtual void TclClass::bind()’:
Tcl.cc:601: warning: deprecated conversion from string constant to ‘char*’
Tcl.cc:603: warning: deprecated conversion from string constant to ‘char*’
make: *** [Tcl.o] Error 1
tclcl-1.15 make failed! Exiting ...
网上说下载对应的ns227-gcc34就可以了，但我试过了，没有用。

------解决方案--------------------
Tcl.cc:564: error: invalid conversion from ‘const char*’ to ‘char*’程序代码的错误。