Bug#260035: ffi is not build if java is not

[Rafael Ávila de Espíndola <rafael.espindola@ic.unicamp.br>]

It seems that libffi is not (fully?) built if java is not.
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export WITHOUT_LANG="java"
dpkg-buildpackage
...
rm -rf debian/libffi2 debian/libffi2-dev
dh_installdirs -plibffi2 usr/share/doc/libffi2 usr/lib
dh_installdirs -plibffi2-dev usr/share/doc usr/include 
usr/lib/gcc/powerpc-linux/3.4.0/include
mv debian/tmp/usr/lib/gcc/powerpc-linux/3.4.0/include/libffi/ffitarget.h 
debian/tmp/usr/include/.
mv: cannot stat 
`debian/tmp/usr/lib/gcc/powerpc-linux/3.4.0/include/libffi/ffitarget.h': No 
such file or directory
make[1]: *** [stamps/08-binary-stamp-libffi] Error 1
make[1]: Leaving directory `/root/debs/gcc-3.4-3.4.0'
make: *** [binary] Error 2
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Rafael