Hello, Clang complains about tolower() being implicitly declared because ctype.h is not included in odbcserver.c git fetch https://github.com/nox/otp.git odbcserver-tolower https://github.com/nox/otp/compare/odbcserver-tolower https://github.com/nox/otp/compare/odbcserver-tolower.patch Regards, -- Anthony Ramine