* Remove usage of d_ino from utils/filename.c (it was checking
for the inode being 0, and I cannot spot anywhere in UnixLib
where it would explicitly do this anyway)
* Add -D_XOPEN_SOURCE=600 to gcc command line, and replace old
-D_POSIX_C_SOURCE to include =200112L (as that's the standard
we use).
svn path=/trunk/netsurf/; revision=3347