cc1plus: warnings being treated as errors
In function 'void mouth(char**)':
Line 5: warning: deprecated conversion from string constant to 'char*''
Line 6: warning: deprecated conversion from string constant to 'char*''
Line 7: warning: deprecated conversion from string constant to 'char*''
Line 8: warning: deprecated conversion from string constant to 'char*''
Line 9: warning: deprecated conversion from string constant to 'char*''
Line 10: warning: deprecated conversion from string constant to 'char*''
In function 'int main()':
Line 17: error: cannot convert 'char*' to 'char**' for argument '1' to 'void mouth(char**)'
compilation terminated due to -Wfatal-errors.