### SGI Irix 5.X

If you are building in a tree separate from the source tree, the vendors version of make does not work properly with regards to `VPATH`. It also has problems with standard inference rules in 5.2 (not tested yet in 5.3) so one needs to use GNU's make.

Under 5.2, there is a bug in the optional System V `-lsocket` library in which the routine `gethostbyname()` is broken. The system supplied version in `-lc` appears to work though so one may simply specify `--with-netlib` option to `configure`.

In 5.3, `gethostbyname()` is no longer present in `-lsocket` and is no longer an issue.