On Mon, 19 Dec 2016, Daniel Kochmański wrote: > ECL 16.1.3 has been released today. I get Building ecl_min... libeclmin.a(write_ugly.o):(.data.rel.ro+0x138): undefined reference to `_ecl_write_sse' collect2: error: ld returned 1 exit status make[1]: *** [Makefile:224: ecl_min] Error 1 Andrey