Don't use -Werror. --- artnet/Makefile.in.orig 2013-02-27 10:59:11.000000000 -0600 +++ artnet/Makefile.in 2019-01-11 23:16:54.000000000 -0600 @@ -284,7 +284,7 @@ top_build_prefix = @top_build_prefix@ top_builddir = @top_builddir@ top_srcdir = @top_srcdir@ -AM_CFLAGS = -I$(top_builddir) -I$(top_srcdir) -Wall -Werror -Wformat -W +AM_CFLAGS = -I$(top_builddir) -I$(top_srcdir) -Wall -Wformat -W EXTRA_DIST = tod.h misc.h pkginclude_HEADERS = artnet.h packets.h common.h lib_LTLIBRARIES = libartnet.la