make install fails on OS X due to non-portable install -D flag

[fletort]

sudo make install
install -D -m644 libmpsse.so //usr/local/lib/libmpsse.so
install: illegal option -- D
usage: install [-bCcpSsv] [-B suffix] [-f flags] [-g group] [-m mode]
[-o owner] file1 file2
install [-bCcpSsv] [-B suffix] [-f flags] [-g group] [-m mode]
[-o owner] file1 ... fileN directory
install -d [-v] [-g group] [-m mode] [-o owner] directory ...
make: *** [install] Error 64

==> -D is a GNU extension of the install program, not available in the BSD version of install that ships on OS X.