>>> ruby 2.7.2 Extracting xzcat /home/buildroot/autobuild/instance-0/dl/ruby/ruby-2.7.2.tar.xz | tar --strip-components=1 -C /home/buildroot/autobuild/instance-0/output-1/build/ruby-2.7.2 -xf - >>> ruby 2.7.2 Patching Applying 0001-fix-default-coroutine-selection.patch using patch: patching file configure.ac Hunk #1 succeeded at 2347 (offset 3 lines). patching file coroutine/copy/Context.c Hunk #1 succeeded at 5 with fuzz 1. >>> ruby 2.7.2 Updating config.sub and config.guess for file in config.guess config.sub; do for i in $(find /home/buildroot/autobuild/instance-0/output-1/build/ruby-2.7.2 -name $file); do cp support/gnuconfig/$file $i; done; done >>> ruby 2.7.2 Configuring >>> ruby 2.7.2 Autoreconfiguring >>> ruby 2.7.2 Patching libtool patching file /home/buildroot/autobuild/instance-0/output-1/build/ruby-2.7.2/ext/fiddle/libffi-3.2.1/ltmain.sh (cd /home/buildroot/autobuild/instance-0/output-1/build/ruby-2.7.2/ && rm -rf config.cache && PATH="/home/buildroot/autobuild/instance-0/output-1/host/bin:/home/buildroot/autobuild/instance-0/output-1/host/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" AR="/home/buildroot/autobuild/instance-0/output-1/host/bin/aarch64_be-linux-gnu-ar" AS="/home/buildroot/autobuild/instance-0/output-1/host/bin/aarch64_be-linux-gnu-as" LD="/home/buildroot/autobuild/instance-0/output-1/host/bin/aarch64_be-linux-gnu-ld" NM="/home/buildroot/autobuild/instance-0/output-1/host/bin/aarch64_be-linux-gnu-nm" CC="/home/buildroot/autobuild/instance-0/output-1/host/bin/aarch64_be-linux-gnu-gcc" GCC="/home/buildroot/autobuild/instance-0/output-1/host/bin/aarch64_be-linux-gnu-gcc" CPP="/home/buildroot/autobuild/instance-0/output-1/host/bin/aarch64_be-linux-gnu-cpp" CXX="/home/buildroot/autobuild/instance-0/output-1/host/bin/aarch64_be-linux-gnu-g++" FC="/home/buildroot/autobuild/instance-0/output-1/host/bin/aarch64_be-linux-gnu-gfortran" F77="/home/buildroot/autobuild/instance-0/output-1/host/bin/aarch64_be-linux-gnu-gfortran" RANLIB="/home/buildroot/autobuild/instance-0/output-1/host/bin/aarch64_be-linux-gnu-ranlib" READELF="/home/buildroot/autobuild/instance-0/output-1/host/bin/aarch64_be-linux-gnu-readelf" STRIP="/home/buildroot/autobuild/instance-0/output-1/host/bin/aarch64_be-linux-gnu-strip" OBJCOPY="/home/buildroot/autobuild/instance-0/output-1/host/bin/aarch64_be-linux-gnu-objcopy" OBJDUMP="/home/buildroot/autobuild/instance-0/output-1/host/bin/aarch64_be-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-0/output-1/host/include" CFLAGS_FOR_BUILD="-O2 -I/home/buildroot/autobuild/instance-0/output-1/host/include" CXXFLAGS_FOR_BUILD="-O2 -I/home/buildroot/autobuild/instance-0/output-1/host/include" LDFLAGS_FOR_BUILD="-L/home/buildroot/autobuild/instance-0/output-1/host/lib -Wl,-rpath,/home/buildroot/autobuild/instance-0/output-1/host/lib" FCFLAGS_FOR_BUILD="" DEFAULT_ASSEMBLER="/home/buildroot/autobuild/instance-0/output-1/host/bin/aarch64_be-linux-gnu-as" DEFAULT_LINKER="/home/buildroot/autobuild/instance-0/output-1/host/bin/aarch64_be-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 -Os -D_FORTIFY_SOURCE=2" CXXFLAGS="-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -D_FORTIFY_SOURCE=2" LDFLAGS="" FCFLAGS=" -Os " FFLAGS=" -Os " PKG_CONFIG="/home/buildroot/autobuild/instance-0/output-1/host/bin/pkg-config" STAGING_DIR="/home/buildroot/autobuild/instance-0/output-1/host/aarch64_be-buildroot-linux-gnu/sysroot" INTLTOOL_PERL=/usr/bin/perl ac_cv_lbl_unaligned_fail=yes ac_cv_func_mmap_fixed_mapped=yes ac_cv_func_memcmp_working=yes ac_cv_have_decl_malloc=yes gl_cv_func_malloc_0_nonnull=yes ac_cv_func_malloc_0_nonnull=yes ac_cv_func_calloc_0_nonnull=yes ac_cv_func_realloc_0_nonnull=yes lt_cv_sys_lib_search_path_spec="" ac_cv_c_bigendian=yes CONFIG_SITE=/dev/null ./configure --target=aarch64_be-buildroot-linux-gnu --host=aarch64_be-buildroot-linux-gnu --build=x86_64-pc-linux-gnu --prefix=/usr --exec-prefix=/usr --sysconfdir=/etc --localstatedir=/var --program-prefix="" --disable-gtk-doc --disable-gtk-doc-html --disable-doc --disable-docs --disable-documentation --with-xmlto=no --with-fop=no --disable-dependency-tracking --enable-ipv6 --disable-nls --disable-static --enable-shared --disable-install-doc --disable-rpath --disable-rubygems --with-gmp ) checking for ruby... /home/buildroot/autobuild/instance-0/output-1/host/bin/ruby tool/config.guess already exists tool/config.sub already exists checking build system type... x86_64-pc-linux-gnu checking host system type... aarch64_be-buildroot-linux-gnu checking target system type... aarch64_be-buildroot-linux-gnu checking for aarch64_be-buildroot-linux-gnu-gcc... (cached) /home/buildroot/autobuild/instance-0/output-1/host/bin/aarch64_be-linux-gnu-gcc checking for aarch64_be-buildroot-linux-gnu-gcc... 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/home/buildroot/autobuild/instance-0/output-1/host/bin/aarch64_be-linux-gnu-g++ accepts -g... yes checking for grep that handles long lines and -e... /bin/grep checking for egrep... /bin/grep -E checking whether /home/buildroot/autobuild/instance-0/output-1/host/bin/aarch64_be-linux-gnu-gcc needs -traditional... no checking for aarch64_be-buildroot-linux-gnu-ld... /home/buildroot/autobuild/instance-0/output-1/host/bin/aarch64_be-linux-gnu-ld checking whether the linker is GNU ld... yes checking whether /home/buildroot/autobuild/instance-0/output-1/host/bin/aarch64_be-linux-gnu-cpp accepts -o... yes checking for aarch64_be-buildroot-linux-gnu-ranlib... /home/buildroot/autobuild/instance-0/output-1/host/bin/aarch64_be-linux-gnu-ranlib checking for aarch64_be-buildroot-linux-gnu-ar... /home/buildroot/autobuild/instance-0/output-1/host/bin/aarch64_be-linux-gnu-ar checking for /home/buildroot/autobuild/instance-0/output-1/host/bin/aarch64_be-linux-gnu-ar flags... rcD checking for aarch64_be-buildroot-linux-gnu-as... /home/buildroot/autobuild/instance-0/output-1/host/bin/aarch64_be-linux-gnu-as checking for aarch64_be-buildroot-linux-gnu-objdump... /home/buildroot/autobuild/instance-0/output-1/host/bin/aarch64_be-linux-gnu-objdump checking for aarch64_be-buildroot-linux-gnu-objcopy... /home/buildroot/autobuild/instance-0/output-1/host/bin/aarch64_be-linux-gnu-objcopy checking for aarch64_be-buildroot-linux-gnu-nm... /home/buildroot/autobuild/instance-0/output-1/host/bin/aarch64_be-linux-gnu-nm checking whether ln -s works... yes checking whether make sets $(MAKE)... yes checking for a BSD-compatible install... /usr/bin/install -c checking for a thread-safe mkdir -p... /bin/mkdir -p checking for aarch64_be-buildroot-linux-gnu-dtrace... no checking for dot... no checking for doxygen... doxygen checking for pkg-config... /home/buildroot/autobuild/instance-0/output-1/host/bin/pkg-config checking for ANSI C header files... yes checking for sys/types.h... yes checking for sys/stat.h... yes checking for stdlib.h... yes checking for string.h... yes checking for memory.h... yes checking for strings.h... yes checking for inttypes.h... yes checking for stdint.h... yes checking for unistd.h... yes checking minix/config.h usability... no checking minix/config.h presence... no checking for minix/config.h... no checking whether it is safe to define __EXTENSIONS__... yes checking for cd using physical directory... cd -P checking whether CFLAGS is valid... yes checking whether LDFLAGS is valid... yes checking whether -Wl,-R. is accepted as LDFLAGS... yes checking whether -Wl,-rpath,. is accepted as LDFLAGS... yes checking whether -Wdeprecated-declarations is accepted as CFLAGS... yes checking whether -Wdivision-by-zero is accepted as CFLAGS... no checking whether -Wduplicated-cond is accepted as CFLAGS... yes checking whether -Wimplicit-function-declaration is accepted as CFLAGS... yes checking whether -Wimplicit-int is accepted as CFLAGS... yes checking 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INT checking for prototypes... yes checking token paste string... ansi checking stringization... #expr checking string literal concatenation... yes checking for variable length prototypes and stdarg.h... yes checking for variable length macro... yes checking for alignas() syntax... __attribute__((__aligned__(x))) checking for alignof() syntax... alignof checking for CONSTFUNC function attribute... __attribute__ ((__const__)) x checking for PUREFUNC function attribute... __attribute__ ((__pure__)) x checking for NORETURN function attribute... __attribute__ ((__noreturn__)) x checking for DEPRECATED function attribute... __attribute__ ((__deprecated__)) x checking for DEPRECATED_BY function attribute... __attribute__ ((__deprecated__("by "#n))) x checking for DEPRECATED_TYPE type attribute... __attribute__ ((__deprecated__ mesg)) x checking for NOINLINE function attribute... __attribute__ ((__noinline__)) x checking for ALWAYS_INLINE function attribute... __attribute__ ((__always_inline__)) x checking for NO_SANITIZE function attribute... x checking for NO_SANITIZE_ADDRESS function attribute... __attribute__ ((__no_sanitize_address__)) x checking for NO_ADDRESS_SAFETY_ANALYSIS function attribute... __attribute__ ((__no_address_safety_analysis__)) x checking for WARN_UNUSED_RESULT function attribute... __attribute__ ((__warn_unused_result__)) x checking for MAYBE_UNUSED function attribute... __attribute__ ((__unused__)) x checking for ERRORFUNC function attribute... __attribute__ ((__error__ mesg)) x checking for WARNINGFUNC function attribute... __attribute__ ((__warning__ mesg)) x checking for WEAK function attribute... __attribute__ ((__weak__)) x checking for __attribute__((__depreacted__(msg))) in C++... yes checking for FUNC_STDCALL function attribute... x checking for FUNC_CDECL function attribute... x checking for FUNC_FASTCALL function attribute... x checking for FUNC_UNOPTIMIZED function attribute... __attribute__ ((__optimize__("O0"))) x checking for FUNC_MINIMIZED function attribute... __attribute__ ((__optimize__("-Os","-fomit-frame-pointer"))) x checking for function alias... alias checking for __atomic builtins... yes checking for __sync builtins... yes checking for __builtin_unreachable... yes checking for exported function attribute... __attribute__ ((__visibility__("default"))) checking for RUBY_FUNC_NONNULL function attribute... __attribute__ ((__nonnull__(n))) x checking for function name string predefined identifier... __func__ checking if enum over int is allowed... yes checking whether sys_nerr is declared... yes checking whether getenv is declared... yes checking for size_t... yes checking size of size_t... 8 checking size of ptrdiff_t... 8 checking for printf prefix for size_t... z checking for printf prefix for ptrdiff_t... t checking for struct stat.st_blksize... yes checking for struct stat.st_blocks... yes checking for struct stat.st_rdev... yes checking size of struct stat.st_size... 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NONE checking for stack end address... __libc_stack_end checking for uid_t in sys/types.h... (cached) yes checking type of array argument to getgroups... gid_t checking return type of signal handlers... void checking for working alloca.h... yes checking for alloca... yes checking for dynamic size alloca... ok checking for working memcmp... 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(cached) yes checking vfork.h usability... no checking vfork.h presence... no checking for vfork.h... no checking for fork... yes checking for vfork... yes checking for working fork... cross configure: WARNING: result yes guessed because of cross compilation checking for working vfork... (cached) yes checking for __syscall... no checking for _longjmp... yes checking for arc4random_buf... no checking for atan2l... yes checking for atan2f... yes checking for chroot... yes checking for chsize... no checking for clock_gettime... yes checking for copy_file_range... no checking for cosh... yes checking for crypt_r... yes checking for daemon... 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checking for getresuid... yes checking for getrlimit... yes checking for getsid... yes checking for gettimeofday... yes checking for getuidx... no checking for gmtime_r... yes checking for grantpt... yes checking for initgroups... yes checking for ioctl... yes checking for isfinite... no checking for issetugid... no checking for killpg... yes checking for lchmod... no checking for lchown... yes checking for link... yes checking for llabs... yes checking for lockf... yes checking for log2... yes checking for lstat... yes checking for lutimes... yes checking for malloc_usable_size... yes checking for malloc_size... no checking for mblen... yes checking for memalign... yes checking for memset_s... no checking for writev... yes checking for memrchr... yes checking for memmem... yes checking for mkfifo... yes checking for mknod... yes checking for mktime... yes checking for openat... yes checking for pipe2... yes checking for poll... yes checking for posix_fadvise... yes checking for posix_memalign... yes checking for ppoll... yes checking for pread... yes checking for pwrite... yes checking for qsort_r... yes checking for qsort_s... no checking for readlink... yes checking for realpath... yes checking for round... yes checking for sched_getaffinity... yes checking for seekdir... yes checking for select_large_fdset... no checking for sendfile... yes checking for setegid... yes checking for setenv... yes checking for seteuid... yes checking for setgid... yes checking for setgroups... yes checking for setpgid... yes checking for setpgrp... yes checking for setregid... yes checking for setresgid... yes checking for setresuid... yes checking for setreuid... yes checking for setrgid... no checking for setrlimit... yes checking for setruid... no checking for setsid... yes checking for setuid... yes checking for shutdown... yes checking for sigaction... yes checking for sigaltstack... yes checking for sigprocmask... yes checking for sinh... yes checking for spawnv... no checking for symlink... yes checking for syscall... yes checking for sysconf... yes checking for tanh... yes checking for telldir... yes checking for timegm... yes checking for times... yes checking for truncate... yes checking for truncate64... yes checking for unsetenv... yes checking for utimensat... yes checking for utimes... yes checking for wait4... yes checking for waitpid... yes checking if getcwd allocates buffer if NULL is given... yes checking crypt.h usability... yes checking crypt.h presence... yes checking for crypt.h... yes checking for struct crypt_data.initialized... yes checking for __builtin_alloca_with_align... yes checking for __builtin_assume_aligned... yes checking for __builtin_bswap16... yes checking for __builtin_bswap32... yes checking for __builtin_bswap64... yes checking for __builtin_popcount... yes checking for __builtin_popcountll... yes checking for __builtin_clz... yes checking for __builtin_clzl... yes checking for __builtin_clzll... yes checking for __builtin_ctz... yes checking for __builtin_ctzll... yes checking for __builtin_add_overflow... yes checking for __builtin_sub_overflow... yes checking for __builtin_mul_overflow... yes checking for __builtin_mul_overflow_p... yes checking for __builtin_constant_p... yes checking for __builtin_choose_expr... yes checking for __builtin_choose_expr_constant_p... yes checking for __builtin_types_compatible_p... yes checking for __builtin_trap... yes checking whether qsort_r is GNU version... yes checking whether qsort_r is BSD version... no checking whether atan2 handles Inf as C99... yes checking for clock_getres... yes checking for timer_create in -lrt... yes checking for timer_settime in -lrt... yes checking for unsetenv returns a value... yes checking whether struct tm is in sys/time.h or time.h... time.h checking for struct tm.tm_zone... yes checking for struct tm.tm_gmtoff... yes checking for external int daylight... yes checking for negative time_t for gmtime(3)... yes checking for localtime(3) overflow correctly... no checking for sig_t... yes checking whether right shift preserve sign bit... yes checking whether _SC_CLK_TCK is supported... yes checking stack growing direction on aarch64_be... 0 checking native coroutine implementation for aarch64_be-linux-gnu... checking for getcontext... yes checking for swapcontext... yes checking for makecontext... yes ucontext checking for pthread_create in -lthr... no checking for pthread_create in -lpthread... yes checking for pthread_np.h... no checking whether pthread_t is scalar type... yes checking for sched_yield... yes checking for pthread_attr_setinheritsched... yes checking for pthread_attr_get_np... no checking for pthread_attr_getstack... yes checking for pthread_attr_getguardsize... yes checking for pthread_get_stackaddr_np... no checking for pthread_get_stacksize_np... no checking for thr_stksegment... no checking for pthread_stackseg_np... no checking for pthread_getthrds_np... no checking for pthread_condattr_setclock... yes checking for pthread_sigmask... yes checking for pthread_setname_np... yes checking for pthread_set_name_np... no checking for pthread_getattr_np... yes checking arguments of pthread_setname_np... (pthread_self(), name) checking if mcontext_t is a pointer... no checking for getcontext... (cached) yes checking for setcontext... yes checking if fork works with pthread... yes checking whether ELF binaries are produced... yes checking elf.h usability... yes checking elf.h presence... yes checking for elf.h... yes checking elf_abi.h usability... no checking elf_abi.h presence... no checking for elf_abi.h... no checking for uncompress in -lz... yes checking mach-o/loader.h usability... no checking mach-o/loader.h presence... no checking for mach-o/loader.h... no checking whether OS depend dynamic link works... yes checking for backtrace... yes checking for broken backtrace... no checking valgrind/memcheck.h usability... no checking valgrind/memcheck.h presence... no checking for valgrind/memcheck.h... no checking for aarch64_be-buildroot-linux-gnu-strip... /home/buildroot/autobuild/instance-0/output-1/host/bin/aarch64_be-linux-gnu-strip checking whether -Wl,--no-undefined is accepted as LDFLAGS... yes checking whether dtrace USDT is available... no checking for __builtin_setjmp... yes with cast () checking for _setjmpex as a macro or function... no checking for _setjmp as a macro or function... yes checking for sigsetjmp as a macro or function... no checking for setjmp type... __builtin_setjmp checking for prefix of external symbols... NONE checking pthread.h usability... yes checking pthread.h presence... yes checking for pthread.h... yes checking if make is GNU make... yes .ext/include/aarch64_be-linux-gnu/ruby/config.h updated configure: ruby library version = 2.7.0 configure: creating ./config.status config.status: creating GNUmakefile config.status: creating Makefile config.status: creating ruby-2.7.pc --- Configuration summary for ruby version 2.7.2 * Installation prefix: /usr * exec prefix: /usr * arch: aarch64_be-linux-gnu * site arch: ${arch} * RUBY_BASE_NAME: ruby * enable shared: yes * ruby lib prefix: ${libdir}/${RUBY_BASE_NAME} * site libraries path: ${rubylibprefix}/${sitearch} * vendor path: ${rubylibprefix}/vendor_ruby * target OS: linux-gnu * compiler: /home/buildroot/autobuild/instance-0/output-1/host\ /bin/aarch64_be-linux-gnu-gcc * with pthread: yes * with coroutine: ucontext * enable shared libs: yes * dynamic library ext: so * CFLAGS: ${optflags} ${debugflags} ${warnflags} * LDFLAGS: -L. -fstack-protector-strong -rdynamic \ -Wl,-export-dynamic * DLDFLAGS: -Wl,--compress-debug-sections=zlib * optflags: -O3 * debugflags: -ggdb3 * warnflags: -Wall -Wextra -Wdeprecated-declarations \ -Wduplicated-cond -Wimplicit-function-declaration \ -Wimplicit-int -Wmisleading-indentation \ -Wpointer-arith -Wwrite-strings \ -Wimplicit-fallthrough=0 -Wmissing-noreturn \ -Wno-cast-function-type \ -Wno-constant-logical-operand -Wno-long-long \ -Wno-missing-field-initializers \ -Wno-overlength-strings \ -Wno-packed-bitfield-compat \ -Wno-parentheses-equality -Wno-self-assign \ -Wno-tautological-compare -Wno-unused-parameter \ -Wno-unused-value -Wsuggest-attribute=format \ -Wsuggest-attribute=noreturn -Wunused-variable * strip command: /home/buildroot/autobuild/instance-0/output-1/host\ /bin/aarch64_be-linux-gnu-strip -S -x * install doc: no * JIT support: yes * man page type: doc * BASERUBY -v: ruby 2.7.2p137 (2020-10-01 revision 5445e04352) \ [x86_64-linux] --- >>> ruby 2.7.2 Building PATH="/home/buildroot/autobuild/instance-0/output-1/host/bin:/home/buildroot/autobuild/instance-0/output-1/host/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" PATH="/home/buildroot/autobuild/instance-0/output-1/host/bin:/home/buildroot/autobuild/instance-0/output-1/host/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" /usr/bin/make -j4 -C /home/buildroot/autobuild/instance-0/output-1/build/ruby-2.7.2/ make[1]: Entering directory '/home/buildroot/autobuild/instance-0/output-1/build/ruby-2.7.2' BASERUBY = /home/buildroot/autobuild/instance-0/output-1/host/bin/ruby --disable=gems CC = /home/buildroot/autobuild/instance-0/output-1/host/bin/aarch64_be-linux-gnu-gcc LD = /home/buildroot/autobuild/instance-0/output-1/host/bin/aarch64_be-linux-gnu-ld LDSHARED = /home/buildroot/autobuild/instance-0/output-1/host/bin/aarch64_be-linux-gnu-gcc -shared CFLAGS = -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -D_FORTIFY_SOURCE=2 -fPIC XCFLAGS = -D_FORTIFY_SOURCE=2 -fstack-protector-strong -fno-strict-overflow -fvisibility=hidden -fexcess-precision=standard -DRUBY_EXPORT -DCANONICALIZATION_FOR_MATHN -I. -I.ext/include/aarch64_be-linux-gnu -I./include -I. -I./enc/unicode/12.1.0 CPPFLAGS = -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -DDISABLE_RUBYGEMS=1 DLDFLAGS = -Wl,--compress-debug-sections=zlib -Wl,-soname,libruby.so.2.7 -fstack-protector-strong SOLIBS = -lz -lpthread -lrt -lrt -lgmp -ldl -lcrypt -lm LANG = C LC_ALL = C LC_CTYPE = MFLAGS = -w -j --jobserver-fds=6,7 aarch64_be-linux-gnu-gcc (Linaro GCC 7.3-2018.05) 7.3.1 20180425 [linaro-7.3-2018.05 revision d29120a424ecfbc167ef90065c0eeb7f91977701] Copyright (C) 2017 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. compiling ./main.c compiling dmydln.c compiling miniinit.c compiling dmyext.c making dummy probes.h compiling ast.c compiling bignum.c compiling class.c compiling compar.c compiling compile.c compiling complex.c compiling cont.c :0:10: error: empty filename in #include Makefile:420: recipe for target 'cont.o' failed make[1]: *** [cont.o] Error 1 make[1]: *** Waiting for unfinished jobs.... make[1]: Leaving directory '/home/buildroot/autobuild/instance-0/output-1/build/ruby-2.7.2' package/pkg-generic.mk:247: recipe for target '/home/buildroot/autobuild/instance-0/output-1/build/ruby-2.7.2/.stamp_built' failed make: *** [/home/buildroot/autobuild/instance-0/output-1/build/ruby-2.7.2/.stamp_built] Error 2 make: Leaving directory '/home/buildroot/autobuild/instance-0/buildroot'