make install ignores DESTDIR

[rofl0r]

make DESTDIR=/media/3T/x-prefix/mips install

cd src ; make  _install
make[1]: Entering directory `/media/3T/x-prefix/mips/src/build/libnids/libnids-1.2$
../mkinstalldirs /lib
../mkinstalldirs /include
../mkinstalldirs /man/man3
mkdir /man/man3
mkdir: can't create directory '/man/man3': Permission denied

[rofl0r]

(my bug reports refer to the latest release tarball on sourceforge - i didnt test this repo)