Ubuntu 16.04 LTS cannot build recent Genesys backend

[Rolf Bensch]

Hi Povilas,

I just mentioned a new problem building genesys backend from Ubuntu
16.04 LTS.

This is the error message from Launchpad
(https://launchpadlibrarian.net/439820893/buildlog_ubuntu-xenial-amd64.sane-backends_1.0.28+git20190901-xenial0_BUILDING.txt.gz):

/bin/bash ../libtool --silent  --tag=CXX   --mode=compile
x86_64-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include/sane  -D_REENTRANT
-DPATH_SANE_CONFIG_DIR=/etc/sane.d 	  -DPATH_SANE_DATA_DIR=/usr/share 	
-DPATH_SANE_LOCK_DIR=/var/lock/sane 	  -DV_MAJOR=1 -DV_MINOR=0 -I. -I.
-I../include -I../include -I/usr/include/libusb-1.0
-DLIBDIR="\"/usr/lib/x86_64-linux-gnu/sane\""
-DDEB_DLL_LIBDIR="\"/usr/lib/x86_64-linux-gnu/sane:/usr/lib/sane\""
-DBACKEND_NAME=genesys  -Wall -Wextra -pedantic -std=gnu++11 -MT
libgenesys_la-genesys_gl846.lo -MD -MP -MF
.deps/libgenesys_la-genesys_gl846.Tpo -c -o
libgenesys_la-genesys_gl846.lo `test -f 'genesys_gl846.cc' || echo
'./'`genesys_gl846.cc
genesys_gl846.cc: In function ‘SensorExposure
gl846_led_calibration(Genesys_Device*, const Genesys_Sensor&,
Genesys_Register_Set&)’:
genesys_gl846.cc:2005:37: error: could not convert ‘{exp[0], exp[1],
exp[2]}’ from ‘<brace-enclosed initializer list>’ to ‘SensorExposure’
     return { exp[0], exp[1], exp[2] };
                                     ^

Many thanks in advance for fixing this.

Cheers,
Rolf