clisp build failure on arm

The clisp package fails to build on arm with this error:

In file included from /usr/include/sys/procfs.h:34,
from /usr/include/sys/ucontext.h:26,
from /usr/include/ucontext.h:27,
from /usr/include/sigsegv.h:21,
from lispbibl.d:1794,
from spvw.d:22:
/usr/include/sys/user.h:31: error: syntax error before "void"
/usr/include/sys/user.h:32: error: syntax error before ':' token
/usr/include/sys/user.h:33: error: syntax error before ':' token
/usr/include/sys/user.h:34: error: syntax error before ':' token
/usr/include/sys/user.h:35: error: syntax error before ':' token
/usr/include/sys/user.h:36: error: syntax error before ':' token
/usr/include/sys/user.h:38: error: syntax error before ':' token
/usr/include/sys/user.h:39: error: syntax error before ':' token
/usr/include/sys/user.h:42: error: syntax error before '}' token
/usr/include/sys/user.h:68: error: field `u_fp' has incomplete type
In file included from /usr/include/ucontext.h:27,
from /usr/include/sigsegv.h:21,
from lispbibl.d:1794,
from spvw.d:22:
/usr/include/sys/ucontext.h:80: error: field `fpregs' has incomplete type

Full log:

http://buildd.debian.org/fetch.php?&pkg=clisp&ver=1%3A2.32-3&arch=arm&...mp=1073

Can anyone diagnose the problem?

Thanks,


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