On Apr 11, 2016, at 9:06 PM, Tatsuro MATSUOKA <tmacchant2@yahoo.co.jp> wrote: >> In building the gnuplot Why aren’t you using the gnuplot package in the Cygwin package repository? > I have met the error of "multiple definition of `atan2l’". This is doubtless because that function was just added to Cygwin in 2.5.0. Perhaps gnuplot is providing its own copy due to a naive platform test? Have you tried a clean reconfigure and rebuild? -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple