Jerome L Quinn <jlquinn at us.ibm.com> writes: Ah, this must have been added more recently. I have gmp 4.3.1 on CentOS 6, and "explicit" isn't there. Yes "recently"; this documentation change was done in one of the 11 releases made since 4.3.1 was current 5 years ago. Torbjörn Please encrypt, key id 0xC8601622