Hi all, I don't quite understand this piece of code: http://git.savannah.gnu.org/gitweb/?p=autoconf.git;a=blobdiff;f=lib/autoconf/c.m4;h=51fdfeba68fffe7f6f5638eaeef00149ed168282;hp=ffaa06e39dff758a24618a8f6504b22103caefac;hb=b0e687ef42e21b1eb7af18c4eaebcd41b0bd5632;hpb=883c8994f1efdc3c550b0d37bf95c947881b735d #else # ifndef WORDS_BIGENDIAN # undef WORDS_BIGENDIAN # endif What was it supposed to achieve? Should it not be either of these two? #ifndef WORDS_BIGENDIAN **#define** WORDS_BIGENDIAN or **#ifdef** WORDS_BIGENDIAN #undef WORDS_BIGENDIAN Please disregard if I missed something elementary. I'm not literate in m4. I just tried to use AC_C_BIGENDIAN for my project and was startled to see its output. Regards, Kai 野田 開 <nodakai@xxxxxxxxx> _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx https://lists.gnu.org/mailman/listinfo/autoconf