Nevertheless , in 1959 France amended the constitution to allow other colonies this option .
Khapoya writes that when President de Gaulle in 1958 held a referendum in its African colonies on the issue , only Guinea voted for outright independence .
In 1959 France amended the constitution to allow other colonies this option .
Khapoya writes that when President de Gaulle in 1958 held a referendum in its African colonies on the issue , only Guinea voted for outright independence .