fatal error: byteswap.h: No such file or directory

[noloader]

Hi Everyone,

I'm testing on FreeBSD 12.0, x86_64. One compile error:

libtool: compile:  gcc -I. -I. -I../include -I./../include -I.. -I./.. -I/home/jwalton/tmp/ok2delete/include -DNDEBUG -g2 -O2 -march=native -fPIC -pthread -fvisibility=hidden -DLIBDIR=\"/home/jwalton/tmp/ok2delete/lib\" -DBUILDING_LIBICONV -DBUILDING_DLL -DENABLE_RELOCATABLE=1 -DIN_LIBRARY -DINSTALLDIR=\"/home/jwalton/tmp/ok2delete/lib\" -DNO_XMALLOC -Dset_relocation_prefix=libiconv_set_relocation_prefix -Drelocate=libiconv_relocate -Drelocate2=libiconv_relocate2 -DHAVE_CONFIG_H -c ./../libcharset/lib/localcharset.c  -fPIC -DPIC -o .libs/localcharset.o
In file included from ./converters.h:125,
                 from ./iconv.c:71:
./utf8mac.h:48:11: fatal error: byteswap.h: No such file or directory
   48 | # include <byteswap.h>
      |           ^~~~~~~~~~~~
compilation terminated.
gmake[1]: *** [Makefile:82: iconv.lo] Error 1