Package: libc6-dev Version: 2.0.7.19981211-1 _PATH_DEFPATH is defined in /usr/include/paths.h as follows: #define _PATH_DEFPATH "/usr/bin:/bin" I can't see why it couldn't also contain /usr/local/bin, /usr/local/sbin, /usr/sbin, /sbin, and /usr/bin/X11. -Topi