What could be the cause of this?
/bin/sh ./mkinstalldirs /usr/lib/courier-imap/libexec
/usr/bin/install -c -s imapd.rc /usr/lib/courier-imap/libexec/imapd.rc
/usr/libexec/elf/strip: /usr/lib/courier-imap/libexec/imapd.rc: File format not
recognized
/usr/bin/install -c -s imapd-ssl.rc /usr/lib/courier-imap/libexec/imapd-ssl.rc
/usr/libexec/elf/strip: /usr/lib/courier-imap/libexec/imapd-ssl.rc: File format
not recognized
/usr/bin/install -c -s pop3d.rc /usr/lib/courier-imap/libexec/pop3d.rc
/usr/libexec/elf/strip: /usr/lib/courier-imap/libexec/pop3d.rc: File format not
recognized
/usr/bin/install -c -s pop3d-ssl.rc /usr/lib/courier-imap/libexec/pop3d-ssl.rc
/usr/libexec/elf/strip: /usr/lib/courier-imap/libexec/pop3d-ssl.rc: File format
not recognized
gmake[3]: *** [install-libexecSCRIPTS] Error 70
gmake[3]: Leaving directory `/usr/home/gdunne/eximsetup/courier-imap-1.3.11'
gmake[2]: *** [install-am] Error 2
gmake[2]: Leaving directory `/usr/home/gdunne/eximsetup/courier-imap-1.3.11'
gmake[1]: *** [install-recursive] Error 1
gmake[1]: Leaving directory `/usr/home/gdunne/eximsetup/courier-imap-1.3.11'
gmake: *** [install-strip] Error 2