for ftw.h... no checking for unistd.h... no checking for sys/stat.h... no checking for sys/types.h... no checking for string.h... no checking for strings.h... no checking for memory.h... no checking for grep that handles long lines and -e... /usr/bin/grep checking for egrep... /usr/bin/grep -E checking for ANSI C header files... no checking whether decimal floating point is supported... no BUILDSTDERR: configure: WARNING: decimal float is not supported for this target, ignored checking whether fixed-point is supported... yes checking whether the compiler is configured for setjmp/longjmp exceptions... yes checking if the linker (/builddir/build/BUILD/avr-gcc-7.2.0/gcc-avr/./gcc/collect-ld) is GNU ld... yes checking for thread model used by GCC... single checking whether assembler supports CFI directives... yes checking for target glibc version... 0.0 checking for __attribute__((visibility("hidden")))... yes checking whether the target assembler supports thread-local storage... yes checking whether the thread-local storage support is from emutls... yes checking for init priority support... no configure: updating cache ./config.cache configure: creating ./config.status config.status: creating Makefile config.status: creating auto-target.h config.status: executing default commands Adding multilib support to Makefile in ../../../../gcc-7.2.0/libgcc with_multisubdir=avrtiny Running configure in multilib subdir tiny-stack pwd: /builddir/build/BUILD/avr-gcc-7.2.0/gcc-avr/avr BUILDSTDERR: mkdir tiny-stack configure: creating cache ./config.cache checking build system type... riscv64-unknown-linux-gnu checking host system type... avr-unknown-none checking for --enable-version-specific-runtime-libs... yes checking for a BSD-compatible install... /usr/bin/install -c checking for gawk... gawk checking for avr-ar... /usr/avr/bin/ar checking for avr-lipo... avr-lipo checking for avr-nm... /builddir/build/BUILD/avr-gcc-7.2.0/gcc-avr/./gcc/nm checking for avr-ranlib... /usr/avr/bin/ranlib checking for avr-strip... /usr/avr/bin/strip checking whether ln -s works... yes checking for avr-gcc... /builddir/build/BUILD/avr-gcc-7.2.0/gcc-avr/./gcc/xgcc -B/builddir/build/BUILD/avr-gcc-7.2.0/gcc-avr/./gcc/ -B/usr/avr/bin/ -B/usr/avr/lib/ -isystem /usr/avr/include -isystem /usr/avr/sys-include -msp8 checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether /builddir/build/BUILD/avr-gcc-7.2.0/gcc-avr/./gcc/xgcc -B/builddir/build/BUILD/avr-gcc-7.2.0/gcc-avr/./gcc/ -B/usr/avr/bin/ -B/usr/avr/lib/ -isystem /usr/avr/include -isystem /usr/avr/sys-include -msp8 accepts -g... yes checking for /builddir/build/BUILD/avr-gcc-7.2.0/gcc-avr/./gcc/xgcc -B/builddir/build/BUILD/avr-gcc-7.2.0/gcc-avr/./gcc/ -B/usr/avr/bin/ -B/usr/avr/lib/ -isystem /usr/avr/include -isystem /usr/avr/sys-include -msp8 option to accept ISO C89... unsupported checking how to run the C preprocessor... /builddir/build/BUILD/avr-gcc-7.2.0/gcc-avr/./gcc/xgcc -B/builddir/build/BUILD/avr-gcc-7.2.0/gcc-avr/./gcc/ -B/usr/avr/bin/ -B/usr/avr/lib/ -isystem /usr/avr/include -isystem /usr/avr/sys-include -msp8 -E checking for special C compiler options needed for large files... no checking for _FILE_OFFSET_BITS value needed for large files... unknown checking for _LARGE_FILES value needed for large files... unknown checking size of double... 4 checking size of long double... 4 checking for inttypes.h... no checking for stdint.h... no checking for stdlib.h... no checking for ftw.h... no checking for unistd.h... no checking for sys/stat.h... no checking for sys/types.h... no checking for string.h... no checking for strings.h... no checking for memory.h... no checking for grep that handles long lines and -e... /usr/bin/grep checking for egrep... /usr/bin/grep -E checking for ANSI C header files... no checking whether decimal floating point is supported... no BUILDSTDERR: configure: WARNING: decimal float is not supported for this target, ignored