lots of configure failures on freebsd/alpha

configure: WARNING: sys/select.h: present but cannot be compiled
configure: WARNING: sys/select.h: check for missing prerequisite headers?
configure: WARNING: sys/select.h: proceeding with the preprocessor's result
checking for sys/select.h... yes
checking sys/sem.h usability... no
checking sys/sem.h presence... yes
configure: WARNING: sys/sem.h: present but cannot be compiled
configure: WARNING: sys/sem.h: check for missing prerequisite headers?
configure: WARNING: sys/sem.h: proceeding with the preprocessor's result
checking for sys/sem.h... yes
checking sys/socket.h usability... no
checking sys/socket.h presence... yes
configure: WARNING: sys/socket.h: present but cannot be compiled
configure: WARNING: sys/socket.h: check for missing prerequisite headers?
configure: WARNING: sys/socket.h: proceeding with the preprocessor's result
checking for sys/socket.h... yes
checking sys/shm.h usability... no
checking sys/shm.h presence... yes
configure: WARNING: sys/shm.h: present but cannot be compiled
configure: WARNING: sys/shm.h: check for missing prerequisite headers?
configure: WARNING: sys/shm.h: proceeding with the preprocessor's result
checking for sys/shm.h... yes
checking sys/un.h usability... no
checking sys/un.h presence... yes
configure: WARNING: sys/un.h: present but cannot be compiled
configure: WARNING: sys/un.h: check for missing prerequisite headers?
configure: WARNING: sys/un.h: proceeding with the preprocessor's result
checking for sys/un.h... yes
checking termios.h usability... yes
checking termios.h presence... yes
checking for termios.h... yes
checking utime.h usability... no
checking utime.h presence... yes
configure: WARNING: utime.h: present but cannot be compiled
configure: WARNING: utime.h: check for missing prerequisite headers?
configure: WARNING: utime.h: proceeding with the preprocessor's result
...

configure: WARNING: netinet/in.h: present but cannot be compiled
configure: WARNING: netinet/in.h: check for missing prerequisite headers?
configure: WARNING: netinet/in.h: proceeding with the preprocessor's result

...
checking types of arguments for accept()... configure: error: could not
determine argument types
gmake: *** [config.status] Error 1

Chris