configuration bug in OpenLdap-1.1alpha on i386-solaris2.5.1

[Jorg Pietschmann <pietsch@swissline.ch>]

Hi,
there appears to be a bug in the OpenLDAP-1.1alpha configuration,
which results in failing to compile servers/slapd/daemon.c
on i386-solaris2.5.1, with the message `FIONBIO undefined'.
This is most probably because `configure' checks for `fileio.h',
which is not there, but not for `sys/fileio.h', which actually
contains the missing symbol. The conditional in `daemon.c'
already correctly check for HAVE_SYS_FILEIO_H, I simply adapted
`portable.h'. Of course, you should rather fix `configure.in'.

Regards

J.Pietschmann