>>> flashrom 1.0 Extracting
bzcat /home/buildroot/autobuild/instance-2/dl/flashrom/flashrom-1.0.tar.bz2 | tar --strip-components=1 -C /home/buildroot/autobuild/instance-2/output/build/flashrom-1.0   -xf -
>>> flashrom 1.0 Patching

Applying 0001-spi.patch using patch: 
patching file linux_spi.c
Hunk #1 succeeded at 28 with fuzz 2 (offset 1 line).
>>> flashrom 1.0 Configuring
>>> flashrom 1.0 Building
PATH="/home/buildroot/autobuild/instance-2/output/host/bin:/home/buildroot/autobuild/instance-2/output/host/sbin:/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games" /usr/bin/make -j4 PATH="/home/buildroot/autobuild/instance-2/output/host/bin:/home/buildroot/autobuild/instance-2/output/host/sbin:/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games" AR="/home/buildroot/autobuild/instance-2/output/host/bin/arc-buildroot-linux-gnu-ar" AS="/home/buildroot/autobuild/instance-2/output/host/bin/arc-buildroot-linux-gnu-as" LD="/home/buildroot/autobuild/instance-2/output/host/bin/arc-buildroot-linux-gnu-ld" NM="/home/buildroot/autobuild/instance-2/output/host/bin/arc-buildroot-linux-gnu-nm" CC="/home/buildroot/autobuild/instance-2/output/host/bin/arc-buildroot-linux-gnu-gcc" GCC="/home/buildroot/autobuild/instance-2/output/host/bin/arc-buildroot-linux-gnu-gcc" CPP="/home/buildroot/autobuild/instance-2/output/host/bin/arc-buildroot-linux-gnu-cpp" CXX="/home/buildroot/autobuild/instance-2/output/host/bin/arc-buildroot-linux-gnu-g++" FC="/home/buildroot/autobuild/instance-2/output/host/bin/arc-buildroot-linux-gnu-gfortran" F77="/home/buildroot/autobuild/instance-2/output/host/bin/arc-buildroot-linux-gnu-gfortran" RANLIB="/home/buildroot/autobuild/instance-2/output/host/bin/arc-buildroot-linux-gnu-ranlib" READELF="/home/buildroot/autobuild/instance-2/output/host/bin/arc-buildroot-linux-gnu-readelf" STRIP="/home/buildroot/autobuild/instance-2/output/host/bin/arc-buildroot-linux-gnu-strip" OBJCOPY="/home/buildroot/autobuild/instance-2/output/host/bin/arc-buildroot-linux-gnu-objcopy" OBJDUMP="/home/buildroot/autobuild/instance-2/output/host/bin/arc-buildroot-linux-gnu-objdump" AR_FOR_BUILD="/usr/bin/ar" AS_FOR_BUILD="/usr/bin/as" CC_FOR_BUILD="/usr/bin/gcc" GCC_FOR_BUILD="/usr/bin/gcc" CXX_FOR_BUILD="/usr/bin/g++" LD_FOR_BUILD="/usr/bin/ld" CPPFLAGS_FOR_BUILD="-I/home/buildroot/autobuild/instance-2/output/host/include" CFLAGS_FOR_BUILD="-O2 -I/home/buildroot/autobuild/instance-2/output/host/include" CXXFLAGS_FOR_BUILD="-O2 -I/home/buildroot/autobuild/instance-2/output/host/include" LDFLAGS_FOR_BUILD="-L/home/buildroot/autobuild/instance-2/output/host/lib -Wl,-rpath,/home/buildroot/autobuild/instance-2/output/host/lib" FCFLAGS_FOR_BUILD="" DEFAULT_ASSEMBLER="/home/buildroot/autobuild/instance-2/output/host/bin/arc-buildroot-linux-gnu-as" DEFAULT_LINKER="/home/buildroot/autobuild/instance-2/output/host/bin/arc-buildroot-linux-gnu-ld" CPPFLAGS="-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64" CFLAGS="-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -matomic -Os  " CXXFLAGS="-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -matomic -Os  " LDFLAGS="" FCFLAGS="-matomic -Os " FFLAGS="-matomic -Os " PKG_CONFIG="/home/buildroot/autobuild/instance-2/output/host/bin/pkg-config" STAGING_DIR="/home/buildroot/autobuild/instance-2/output/host/arc-buildroot-linux-gnu/sysroot" INTLTOOL_PERL=/usr/bin/perl CFLAGS="-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -matomic -Os   -DHAVE_STRNLEN" CONFIG_FT2232_SPI=yes CONFIG_USBBLASTER_SPI=yes CONFIG_ENABLE_LIBUSB1_PROGRAMMERS=yes CONFIG_ENABLE_LIBUSB0_PROGRAMMERS=yes CONFIG_ENABLE_LIBPCI_PROGRAMMERS=no -C /home/buildroot/autobuild/instance-2/output/build/flashrom-1.0
make[1]: Entering directory '/home/buildroot/autobuild/instance-2/output/build/flashrom-1.0'
Replacing all version templates with v1.0.
Checking for a C compiler... found.
Target arch is unknown. Aborting.
Makefile:1059: recipe for target 'compiler' failed
make[1]: *** [compiler] Error 1
make[1]: Leaving directory '/home/buildroot/autobuild/instance-2/output/build/flashrom-1.0'
package/pkg-generic.mk:238: recipe for target '/home/buildroot/autobuild/instance-2/output/build/flashrom-1.0/.stamp_built' failed
make: *** [/home/buildroot/autobuild/instance-2/output/build/flashrom-1.0/.stamp_built] Error 2
make: Leaving directory '/home/buildroot/autobuild/instance-2/buildroot'