Set HOST_CFLAGS to avoid the following build failure raised since bump to version 2.5.21 in commitaf2cd694e3: /usr/bin/gcc -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -mlongcalls -mauto-litpools -O2 -g0 -c createconf.c -o createconf.o gcc: error: unrecognized command-line option '-mlongcalls' gcc: error: unrecognized command-line option '-mauto-litpools' Fixes:af2cd694e3- http://autobuild.buildroot.org/results/28be2acc6d58754c7431df81d0b63b30e6af8554 Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>