make[4]: Entering directory '/build/lede-17.01/slaves/phase2/arc_archs/build/sdk/build_dir/target-arc_archs_uClibc-1.0.14/baresip-0.4.19'
/build/lede-17.01/slaves/phase2/arc_archs/build/sdk/staging_dir/target-arc_archs_uClibc-1.0.14/usr/share/re/re.mk:415: Could not detect ARCH
  CC [M]  build-/modules/v4l/v4l.o
modules/v4l/v4l.c:16:30: fatal error: libv4l1-videodev.h: No such file or directory
 #include <libv4l1-videodev.h>
                              ^
compilation terminated.
mk/mod.mk:42: recipe for target 'build-/modules/v4l/v4l.o' failed
make[4]: *** [build-/modules/v4l/v4l.o] Error 1
make[4]: Leaving directory '/build/lede-17.01/slaves/phase2/arc_archs/build/sdk/build_dir/target-arc_archs_uClibc-1.0.14/baresip-0.4.19'
Makefile:141: recipe for target '/build/lede-17.01/slaves/phase2/arc_archs/build/sdk/build_dir/target-arc_archs_uClibc-1.0.14/baresip-0.4.19/.built' failed
make[3]: *** [/build/lede-17.01/slaves/phase2/arc_archs/build/sdk/build_dir/target-arc_archs_uClibc-1.0.14/baresip-0.4.19/.built] Error 2