>>> 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
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configure: WARNING: result yes guessed because of cross compilation
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checking for fmod... yes
checking for fstatat... yes
checking for fsync... yes
checking for ftruncate... yes
checking for ftruncate64... yes
checking for getattrlist... no
checking for getcwd... yes
checking for getgidx... no
checking for getgrnam... yes
checking for getgrnam_r... yes
checking for getgroups... yes
checking for getpgid... yes
checking for getpgrp... yes
checking for getpriority... yes
checking for getpwnam_r... yes
checking for getrandom... yes
checking for getresgid... yes
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
<command-line>: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'