Bug#864717: failed to rebuild on Stretch

[trebmuh at tuxfamily.org]

Package: libffado
Version: 2.3.0-2

Dear debian maintainers,

trying to rebuild a 32 bits package for FFADO with pbuilder on 64 bits 
machine gives me a :
...
zip
...
scons: done reading SConscript files.
scons: Building targets ...
building 'config_debug.h' from 'config_debug.h.in'
building 'config.h' from 'config.h.in'
g++ -o src/DeviceStringParser.os -c -std=gnu++11 -mx32 -fPIC -fPIC 
-DDEBUG_MESSAGES -DENABLE_BEBOB -DENABLE_FIREWORKS -DENABLE_OXFORD 
-DENABLE_MOTU -DENABLE_DICE -DENABLE_RME -DENABLE_GENERICAVC -I. -Isrc 
-I/usr/include/libxml++-2.6 
-I/usr/lib/i386-linux-gnu/libxml++-2.6/include -I/usr/include/libxml2 
-I/usr/include/glibmm-2.4 -I/usr/lib/i386-linux-gnu/glibmm-2.4/include 
-I/usr/include/glib-2.0 -I/usr/lib/i386-linux-gnu/glib-2.0/include 
-I/usr/include/sigc++-2.0 -I/usr/lib/i386-linux-gnu/sigc++-2.0/include 
src/DeviceStringParser.cpp
In file included from /usr/include/inttypes.h:25:0,
                  from src/ffadotypes.h:31,
                  from src/debugmodule/../fbtypes.h:27,
                  from src/debugmodule/debugmodule.h:30,
                  from src/DeviceStringParser.h:27,
                  from src/DeviceStringParser.cpp:24:
/usr/include/features.h:364:25: fatal error: sys/cdefs.h: No such file 
or directory
  #  include <sys/cdefs.h>
                          ^
compilation terminated.
scons: *** [src/DeviceStringParser.os] Error 1
g++ -o src/bebob/bebob_avdevice.os -c -std=gnu++11 -mx32 -fPIC -fPIC 
-DDEBUG_MESSAGES -DENABLE_BEBOB -DENABLE_FIREWORKS -DENABLE_OXFORD 
-DENABLE_MOTU -DENABLE_DICE -DENABLE_RME -DENABLE_GENERICAVC -I. -Isrc 
-I/usr/include/libxml++-2.6 
-I/usr/lib/i386-linux-gnu/libxml++-2.6/include -I/usr/include/libxml2 
-I/usr/include/glibmm-2.4 -I/usr/lib/i386-linux-gnu/glibmm-2.4/include 
-I/usr/include/glib-2.0 -I/usr/lib/i386-linux-gnu/glib-2.0/include 
-I/usr/include/sigc++-2.0 -I/usr/lib/i386-linux-gnu/sigc++-2.0/include 
src/bebob/bebob_avdevice.cpp
In file included from /usr/include/inttypes.h:25:0,
                  from src/ffadotypes.h:31,
                  from src/debugmodule/../fbtypes.h:27,
                  from src/debugmodule/debugmodule.h:30,
                  from src/devicemanager.h:28,
                  from src/bebob/bebob_avdevice.cpp:26:
/usr/include/features.h:364:25: fatal error: sys/cdefs.h: No such file 
or directory
  #  include <sys/cdefs.h>
                          ^
compilation terminated.
scons: *** [src/bebob/bebob_avdevice.os] Error 1
scons: building terminated because of errors.
debian/rules:62: recipe for target 'debian/stamp-scons-build' failed
make: *** [debian/stamp-scons-build] Error 2
dpkg-buildpackage: error: fakeroot debian/rules binary gave error exit 
status 2
I: copying local configuration
E: Failed autobuilding of package

Please, advice.
Olivier