>>> mdadm 4.2 Extracting
xzcat /home/peko/autobuild/instance-1/dl/mdadm/mdadm-4.2.tar.xz | tar --strip-components=1 -C /home/peko/autobuild/instance-1/output-1/build/mdadm-4.2   -xf -
>>> mdadm 4.2 Patching
>>> mdadm 4.2 Configuring
>>> mdadm 4.2 Building
PATH="/home/peko/autobuild/instance-1/output-1/host/bin:/home/peko/autobuild/instance-1/output-1/host/sbin:/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games" /usr/bin/make -j4 -C /home/peko/autobuild/instance-1/output-1/build/mdadm-4.2 CC=/home/peko/autobuild/instance-1/output-1/host/bin/mips-linux-gnu-gcc COROSYNC=-DNO_COROSYNC DLM=-DNO_DLM CXFLAGS="-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os -g0 -D_FORTIFY_SOURCE=1 -DNO_LIBUDEV" CPPFLAGS="-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -DBINDIR=\\\"/sbin\\\"" CHECK_RUN_DIR=0 mdadm mdmon
make[1]: Entering directory '/home/peko/autobuild/instance-1/output-1/build/mdadm-4.2'
/home/peko/autobuild/instance-1/output-1/host/bin/mips-linux-gnu-gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter -Wimplicit-fallthrough=0 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os -g0 -D_FORTIFY_SOURCE=1 -DNO_LIBUDEV -DSendmail=\""/usr/sbin/sendmail -t"\" -DCONFFILE=\"/etc/mdadm.conf\" -DCONFFILE2=\"/etc/mdadm/mdadm.conf\" -DMAP_DIR=\"/run/mdadm\" -DMAP_FILE=\"map\" -DMDMON_DIR=\"/run/mdadm\" -DFAILED_SLOTS_DIR=\"/run/mdadm/failed-slots\" -DNO_COROSYNC -DNO_DLM    -DUSE_PTHREADS -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -DBINDIR=\"/sbin\"  -o mdadm.o -c mdadm.c
/home/peko/autobuild/instance-1/output-1/host/bin/mips-linux-gnu-gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter -Wimplicit-fallthrough=0 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os -g0 -D_FORTIFY_SOURCE=1 -DNO_LIBUDEV -DSendmail=\""/usr/sbin/sendmail -t"\" -DCONFFILE=\"/etc/mdadm.conf\" -DCONFFILE2=\"/etc/mdadm/mdadm.conf\" -DMAP_DIR=\"/run/mdadm\" -DMAP_FILE=\"map\" -DMDMON_DIR=\"/run/mdadm\" -DFAILED_SLOTS_DIR=\"/run/mdadm/failed-slots\" -DNO_COROSYNC -DNO_DLM    -DUSE_PTHREADS -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -DBINDIR=\"/sbin\"  -o config.o -c config.c
mips-linux-gnu-gcc: error: unrecognized command line option '-Wimplicit-fallthrough=0'
make[1]: *** [Makefile:193: mdadm.o] Error 1
make[1]: *** Waiting for unfinished jobs....
mips-linux-gnu-gcc: error: unrecognized command line option '-Wimplicit-fallthrough=0'
make[1]: *** [Makefile:193: config.o] Error 1
make[1]: Leaving directory '/home/peko/autobuild/instance-1/output-1/build/mdadm-4.2'
make: *** [package/pkg-generic.mk:295: /home/peko/autobuild/instance-1/output-1/build/mdadm-4.2/.stamp_built] Error 2
make: Leaving directory '/home/peko/autobuild/instance-1/buildroot'