[sane-devel] Building backends on FreeBSD?

[Torfinn Ingolfsen]

So I'm trying to build master on FreeBSD. FreeBSD version is 11.3-stable:
tingo at kg-core1$ uname -a
FreeBSD kg-core1.kg4.no 11.3-STABLE FreeBSD 11.3-STABLE #2 r352605:
Sun Sep 22 22:53:27 CEST 2019
root at kg-core1.kg4.no:/usr/obj/usr/src/sys/GENERIC  amd64

I've checked out backends from git:
tingo at kg-core1$ git log --oneline | head -1
9aad35503 Merge branch 'update-epkowa-documentation' into 'master'

I've done
$ bash ./autogen.sh
$ MAKE=gmake CPPFLAGS=-I/usr/local/include LDFLAGS=-L/usr/local/lib ./configure

but gmake fails:
tingo at kg-core1$ gmake
Making all in include
gmake[1]: Entering directory '/zs/tingo/work/sane/backends/include'
gmake[1]: Nothing to be done for 'all'.
gmake[1]: Leaving directory '/zs/tingo/work/sane/backends/include'
Making all in lib
gmake[1]: Entering directory '/zs/tingo/work/sane/backends/lib'
gmake[1]: Nothing to be done for 'all'.
gmake[1]: Leaving directory '/zs/tingo/work/sane/backends/lib'
Making all in sanei
gmake[1]: Entering directory '/zs/tingo/work/sane/backends/sanei'
gmake[1]: Nothing to be done for 'all'.
gmake[1]: Leaving directory '/zs/tingo/work/sane/backends/sanei'
Making all in backend
gmake[1]: Entering directory '/zs/tingo/work/sane/backends/backend'
gmake  all-am
gmake[2]: Entering directory '/zs/tingo/work/sane/backends/backend'
/bin/sh ../libtool --silent  --tag=CC   --mode=compile cc
-DHAVE_CONFIG_H -I. -I../include/sane
-DPATH_SANE_CONFIG_DIR=/usr/local/etc/sane.d
-DPATH_SANE_DATA_DIR=/usr/local/share
-DPATH_SANE_LOCK_DIR=/usr/local/var/lock/sane       -DV_MAJOR=1
-DV_MINOR=0 -I. -I. -I../include -I../include
-DLIBDIR="\"/usr/local/lib/sane\"" -DBACKEND_NAME=epsonds
-I/usr/local/include -Wall -Wextra -pedantic -g -O2 -MT
libepsonds_la-epsonds.lo -MD -MP -MF .deps/libepsonds_la-epsonds.Tpo
-c -o libepsonds_la-epsonds.lo `test -f 'epsonds.c' || echo
'./'`epsonds.c
epsonds.c:240:4: warning: implicit declaration of function
'setsockopt' is invalid in C99 [-Wimplicit-function-declaration]
                        setsockopt(s->fd, SOL_SOCKET, SO_RCVTIMEO,
(char *)&tv,  sizeof(tv));
                        ^
epsonds.c:240:22: error: use of undeclared identifier 'SOL_SOCKET'
                        setsockopt(s->fd, SOL_SOCKET, SO_RCVTIMEO,
(char *)&tv,  sizeof(tv));
                                          ^
epsonds.c:240:34: error: use of undeclared identifier 'SO_RCVTIMEO'
                        setsockopt(s->fd, SOL_SOCKET, SO_RCVTIMEO,
(char *)&tv,  sizeof(tv));
                                                      ^
1 warning and 2 errors generated.
gmake[2]: *** [Makefile:4718: libepsonds_la-epsonds.lo] Error 1
gmake[2]: Leaving directory '/zs/tingo/work/sane/backends/backend'
gmake[1]: *** [Makefile:3326: all] Error 2
gmake[1]: Leaving directory '/zs/tingo/work/sane/backends/backend'
gmake: *** [Makefile:590: all-recursive] Error 1

What more can I do?
-- 
Regards,
Torfinn Ingolfsen