cd $SOURCE_DIRECTORY/fftw-single-$VERSION && ./configure --prefix=${INSTALL_ROOT}/usr \ --enable-shared \ --enable-float \ --enable-i386-hacks \ --enable-type-prefix \ $OPTS && make && cd $SOURCE_DIRECTORY/fftw-double-$VERSION && ./configure --prefix=${INSTALL_ROOT}/usr \ --enable-shared \ --enable-i386-hacks \ --enable-type-prefix \ $OPTS && make