On Dec 12 16:51, KIMURA Masaru wrote: > Hi, > > is cygwin's __STRICT_ANSI__ and stdio.h behavior not so compatible to glibc's? Cygwin is using newlib, newlib is BSD based. We introduced the compatibility checking macros from FreeBSD lately. Corinna -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Maintainer cygwin AT cygwin DOT com Red Hat