Libstdc++

root@ubuntu:/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build# ../configure --host=$LFS_TGT --prefix=/tools --disable-multilib --disable-nls --disable-libstdcxx-threads --disable-libstdcxx-pch --with-gxx-include-dir=/tools/$LFS_TGT/include/c++/7.3.0
checking build system type... x86_64-pc-linux-gnu
checking host system type... x86_64-pc-linux-gnu
checking target system type... x86_64-pc-linux-gnu
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking for gcc... gcc
checking for C compiler default output file name... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables...
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking for g++... g++
checking whether we are using the GNU C++ compiler... yes
checking whether g++ accepts -g... yes
checking how to run the C preprocessor... gcc -E
checking for grep that handles long lines and -e... /bin/grep
checking for egrep... /bin/grep -E
checking whether ln -s works... yes
checking for as... as
checking for ar... ar
checking for ranlib... ranlib
checking whether to enable maintainer-specific portions of Makefiles... no
configure: CPU config directory is cpu/i486
configure: OS config directory is os/gnu-linux
checking how to print strings... printf
checking for a sed that does not truncate output... /bin/sed
checking for fgrep... /bin/grep -F
checking for ld used by gcc... /usr/bin/ld
checking if the linker (/usr/bin/ld) is GNU ld... yes
checking for BSD- or MS-compatible name lister (nm)... /usr/bin/nm -B
checking the name lister (/usr/bin/nm -B) interface... BSD nm
checking the maximum length of command line arguments... 1572864
checking whether the shell understands some XSI constructs... yes
checking whether the shell understands "+="... yes
checking for /usr/bin/ld option to reload object files... -r
checking for objdump... objdump
checking how to recognize dependent libraries... pass_all
checking for ar... (cached) ar
checking for strip... strip
checking for ranlib... (cached) ranlib
checking command to parse /usr/bin/nm -B output from gcc object... ok
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 for dlfcn.h... yes
checking for objdir... .libs
checking if gcc supports -fno-rtti -fno-exceptions... no
checking for gcc option to produce PIC... -fPIC -DPIC
checking if gcc PIC flag -fPIC -DPIC works... yes
checking if gcc static flag -static works... yes
checking if gcc supports -c -o file.o... yes
checking if gcc supports -c -o file.o... (cached) yes
checking whether the gcc linker (/usr/bin/ld -m elf_x86_64) supports shared libraries... yes
checking whether -lc should be explicitly linked in... no
checking dynamic linker characteristics... GNU/Linux ld.so
checking how to hardcode library paths into programs... immediate
checking for shl_load... no
checking for shl_load in -ldld... no
checking for dlopen... no
checking for dlopen in -ldl... yes
checking whether a program can dlopen itself... yes
checking whether a statically linked program can dlopen itself... no
checking whether stripping libraries is possible... yes
checking if libtool supports shared libraries... yes
checking whether to build shared libraries... yes
checking whether to build static libraries... yes
checking how to run the C++ preprocessor... g++ -E
checking for ld used by g++... /usr/bin/ld -m elf_x86_64
checking if the linker (/usr/bin/ld -m elf_x86_64) is GNU ld... yes
checking whether the g++ linker (/usr/bin/ld -m elf_x86_64) supports shared libraries... yes
checking for g++ option to produce PIC... -fPIC -DPIC
checking if g++ PIC flag -fPIC -DPIC works... yes
checking if g++ static flag -static works... yes
checking if g++ supports -c -o file.o... yes
checking if g++ supports -c -o file.o... (cached) yes
checking whether the g++ linker (/usr/bin/ld -m elf_x86_64) supports shared libraries... yes
checking dynamic linker characteristics... (cached) GNU/Linux ld.so
checking how to hardcode library paths into programs... immediate
checking for enabled PCH... no
checking for thread model used by GCC... posix
checking for atomic builtins for bool... yes
checking for atomic builtins for short... yes
checking for atomic builtins for int... yes
checking for atomic builtins for long long... yes
checking for ISO/IEC TR 24733 ... yes
checking for __int128... yes
checking for __float128... yes
checking for g++ that supports -ffunction-sections -fdata-sections... yes
checking for underlying I/O to use... stdio
checking for C locale to use... gnu
checking for msgfmt... yes
checking for std::allocator base class... new
configure: "C" header strategy set to c_global
checking for enabled long long specializations... yes
checking wchar.h usability... yes
checking wchar.h presence... yes
checking for wchar.h... yes
checking for mbstate_t... yes
checking wctype.h usability... yes
checking wctype.h presence... yes
checking for wctype.h... yes
checking for enabled wchar_t specializations... yes
checking for sin in -lm... yes
checking for ISO C99 support in <math.h> for C++98... yes
checking tgmath.h usability... yes
checking tgmath.h presence... yes
checking for tgmath.h... yes
checking complex.h usability... yes
checking complex.h presence... yes
checking for complex.h... yes
checking for ISO C99 support in <complex.h> for C++98... yes
checking for ISO C99 support in <stdio.h> for C++98... yes
checking for ISO C99 support in <stdlib.h> for C++98... yes
checking for ISO C99 support in <wchar.h> for C++98... yes
checking for sin in -lm... (cached) yes
checking for ISO C99 support in <math.h> for C++11... yes
checking for tgmath.h... (cached) yes
checking for complex.h... (cached) yes
checking for ISO C99 support in <complex.h> for C++11... yes
checking for ISO C99 support in <stdio.h> for C++11... yes
checking for ISO C99 support in <stdlib.h> for C++11... yes
checking for ISO C99 support in <wchar.h> for C++11... yes
checking for fully enabled ISO C99 support... yes
configure: Debug build flags set to -gdwarf-4 -g3 -O0
checking for additional debug build... no
configure: target-libgomp not built
checking for parallel mode support... no
checking for extra compiler flags for building...
checking for extern template support... yes
checking for custom python install directory... no
checking for -Werror... yes
checking for vtable verify support... no
checking for gets declaration... yes
checking for obsolete isinf function in <math.h>... no
checking for obsolete isnan function in <math.h>... no
checking for EOWNERDEAD... yes
checking for ENOTRECOVERABLE... yes
checking for ENOLINK... yes
checking for EPROTO... yes
checking for ENODATA... yes
checking for ENOSR... yes
checking for ENOSTR... yes
checking for ETIME... yes
checking for EBADMSG... yes
checking for ECANCELED... yes
checking for EOVERFLOW... yes
checking for ENOTSUP... yes
checking for EIDRM... yes
checking for ETXTBSY... yes
checking for ECHILD... yes
checking for ENOSPC... yes
checking for EPERM... yes
checking for ETIMEDOUT... yes
checking for EWOULDBLOCK... yes
checking uchar.h usability... yes
checking uchar.h presence... yes
checking for uchar.h... yes
checking for ISO C11 support for <uchar.h>... yes
checking for int64_t... yes
checking for int64_t as long... yes
checking for int64_t as long long... checking for LFS support... yes
checking sys/ioctl.h usability... yes
checking sys/ioctl.h presence... yes
checking for sys/ioctl.h... yes
checking sys/filio.h usability... no
checking sys/filio.h presence... no
checking for sys/filio.h... no
checking for poll... yes
checking for S_ISREG or S_IFREG... S_ISREG
checking sys/uio.h usability... yes
checking sys/uio.h presence... yes
checking for sys/uio.h... yes
checking for writev... yes
checking fenv.h usability... yes
checking fenv.h presence... yes
checking for fenv.h... yes
checking for complex.h... (cached) yes
checking for complex.h... (cached) yes
checking for ISO C99 support to TR1 in <complex.h>... yes
checking for ISO C99 support to TR1 in <ctype.h>... yes
checking for fenv.h... (cached) yes
checking for ISO C99 support to TR1 in <fenv.h>... yes
checking for ISO C99 support to TR1 in <stdint.h>... yes
checking for ISO C99 support to TR1 in <math.h>... yes
checking for ISO C99 support to TR1 in <inttypes.h>... yes
checking for wchar_t ISO C99 support to TR1 in <inttypes.h>... yes
checking stdbool.h usability... yes
checking stdbool.h presence... yes
checking for stdbool.h... yes
checking stdalign.h usability... yes
checking stdalign.h presence... yes
checking for stdalign.h... yes
checking for the value of EOF... -1
checking for the value of SEEK_CUR... 1
checking for the value of SEEK_END... 2
checking for gettimeofday... checking sys/time.h usability... yes
checking sys/time.h presence... yes
checking for sys/time.h... yes
checking for gettimeofday... yes
checking for at least GNU libc 2.17... yes
checking for tmpnam... yes
checking locale.h usability... yes
checking locale.h presence... yes
checking for locale.h... yes
checking for LC_MESSAGES... yes
checking sys/sysinfo.h usability... yes
checking sys/sysinfo.h presence... yes
checking for sys/sysinfo.h... yes
checking for get_nprocs... yes
checking for unistd.h... (cached) yes
checking for _SC_NPROCESSORS_ONLN... yes
checking for _SC_NPROC_ONLN... no
checking for pthreads_num_processors_np... no
checking for hw.ncpu sysctl... no
checking for suitable sys/sdt.h... no
checking endian.h usability... yes
checking endian.h presence... yes
checking for endian.h... yes
checking execinfo.h usability... yes
checking execinfo.h presence... yes
checking for execinfo.h... yes
checking float.h usability... yes
checking float.h presence... yes
checking for float.h... yes
checking fp.h usability... no
checking fp.h presence... no
checking for fp.h... no
checking ieeefp.h usability... no
checking ieeefp.h presence... no
checking for ieeefp.h... no
checking for inttypes.h... (cached) yes
checking for locale.h... (cached) yes
checking machine/endian.h usability... no
checking machine/endian.h presence... no
checking for machine/endian.h... no
checking machine/param.h usability... no
checking machine/param.h presence... no
checking for machine/param.h... no
checking nan.h usability... no
checking nan.h presence... no
checking for nan.h... no
checking for stdint.h... (cached) yes
checking for stdlib.h... (cached) yes
checking for string.h... (cached) yes
checking for strings.h... (cached) yes
checking sys/ipc.h usability... yes
checking sys/ipc.h presence... yes
checking for sys/ipc.h... yes
checking sys/isa_defs.h usability... no
checking sys/isa_defs.h presence... no
checking for sys/isa_defs.h... no
checking sys/machine.h usability... no
checking sys/machine.h presence... no
checking for sys/machine.h... no
checking sys/param.h usability... yes
checking sys/param.h presence... yes
checking for sys/param.h... yes
checking sys/resource.h usability... yes
checking sys/resource.h presence... yes
checking for sys/resource.h... yes
checking sys/sem.h usability... yes
checking sys/sem.h presence... yes
checking for sys/sem.h... yes
checking for sys/stat.h... (cached) yes
checking for sys/time.h... (cached) yes
checking for sys/types.h... (cached) yes
checking for unistd.h... (cached) yes
checking for wchar.h... (cached) yes
checking for wctype.h... (cached) yes
checking for ld used by gcc... (cached) /usr/bin/ld
checking if the linker (/usr/bin/ld) is GNU ld... (cached) yes
checking for ld version... 22601
checking for ld that supports -Wl,--gc-sections... yes
checking for ld that supports -Wl,-z,relro... yes
checking for sin in -lm... (cached) yes
checking for isinf declaration... no
checking for _isinf declaration... no
checking for isnan declaration... no
checking for _isnan declaration... no
checking for finite declaration... yes
checking for finite... yes
checking for sincos declaration... yes
checking for sincos... yes
checking for fpclass declaration... no
checking for _fpclass declaration... no
checking for qfpclass declaration... no
checking for _qfpclass declaration... no
checking for hypot declaration... yes
checking for hypot... yes
checking for float trig functions... yes
checking for acosf... yes
checking for asinf... yes
checking for atanf... yes
checking for cosf... yes
checking for sinf... yes
checking for tanf... yes
checking for coshf... yes
checking for sinhf... yes
checking for tanhf... yes
checking for float round functions... yes
checking for ceilf... yes
checking for floorf... yes
checking for expf declaration... yes
checking for expf... yes
checking for isnanf declaration... yes
checking for isnanf... yes
checking for isinff declaration... yes
checking for isinff... yes
checking for atan2f declaration... yes
checking for atan2f... yes
checking for fabsf declaration... yes
checking for fabsf... yes
checking for fmodf declaration... yes
checking for fmodf... yes
checking for frexpf declaration... yes
checking for frexpf... yes
checking for hypotf declaration... yes
checking for hypotf... yes
checking for ldexpf declaration... yes
checking for ldexpf... yes
checking for logf declaration... yes
checking for logf... yes
checking for log10f declaration... yes
checking for log10f... yes
checking for modff declaration... yes
checking for modff... yes
checking for modf declaration... yes
checking for modf... yes
checking for powf declaration... yes
checking for powf... yes
checking for sqrtf declaration... yes
checking for sqrtf... yes
checking for sincosf declaration... yes
checking for sincosf... yes
checking for finitef declaration... yes
checking for finitef... yes
checking for long double trig functions... yes
checking for acosl... yes
checking for asinl... yes
checking for atanl... yes
checking for cosl... yes
checking for sinl... yes
checking for tanl... yes
checking for coshl... yes
checking for sinhl... yes
checking for tanhl... yes
checking for long double round functions... yes
checking for ceill... yes
checking for floorl... yes
checking for isnanl declaration... yes
checking for isnanl... yes
checking for isinfl declaration... yes
checking for isinfl... yes
checking for atan2l declaration... yes
checking for atan2l... yes
checking for expl declaration... yes
checking for expl... yes
checking for fabsl declaration... yes
checking for fabsl... yes
checking for fmodl declaration... yes
checking for fmodl... yes
checking for frexpl declaration... yes
checking for frexpl... yes
checking for hypotl declaration... yes
checking for hypotl... yes
checking for ldexpl declaration... yes
checking for ldexpl... yes
checking for logl declaration... yes
checking for logl... yes
checking for log10l declaration... yes
checking for log10l... yes
checking for modfl declaration... yes
checking for modfl... yes
checking for powl declaration... yes
checking for powl... yes
checking for sqrtl declaration... yes
checking for sqrtl... yes
checking for sincosl declaration... yes
checking for sincosl... yes
checking for finitel declaration... yes
checking for finitel... yes
checking for at_quick_exit declaration... yes
checking for at_quick_exit... yes
checking for quick_exit declaration... yes
checking for quick_exit... yes
checking for strtold declaration... yes
checking for strtold... yes
checking for strtof declaration... yes
checking for strtof... yes
checking for "/dev/random" and "/dev/urandom" for TR1 random_device... yes
checking whether the target supports thread-local storage... yes
checking for __cxa_thread_atexit_impl... yes
checking for __cxa_thread_atexit... no
checking for aligned_alloc... yes
checking for posix_memalign... yes
checking for memalign... yes
checking for _aligned_malloc... no
checking for ld used by GCC... /usr/bin/ld
checking if the linker (/usr/bin/ld) is GNU ld... yes
checking for shared library run path origin... done
checking for iconv... yes
checking for iconv declaration... install-shextern size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
looking for a compliant stdint.h in stdint.h, checking for uintmax_t... yes
checking for uintptr_t... yes
checking for int_least32_t... yes
checking for int_fast32_t... yes
checking for uint64_t... yes
checking what to include in include/gstdint.h... stdint.h (already complete)
checking for GNU c++filt... /usr/bin/c++filt
checking for shared libgcc... yes
checking whether the target supports .symver directive... yes
configure: versioning on shared library symbols is gnu
checking for size_t as unsigned int... no
checking for ptrdiff_t as int... no
checking whether the target supports hidden visibility... yes
configure: visibility supported: yes
checking for default std::string ABI to use... new
checking for rdrand support in assembler... yes
checking for unistd.h... (cached) yes
checking for sys/time.h... (cached) yes
checking for sys/resource.h... (cached) yes
checking for RLIMIT_DATA... yes
checking for RLIMIT_RSS... yes
checking for RLIMIT_VMEM... no
checking for RLIMIT_AS... yes
checking for RLIMIT_FSIZE... yes
checking for testsuite resource limits support... yes
checking for setenv declaration... yes
checking for setenv... yes
no
checking fcntl.h usability... yes
checking fcntl.h presence... yes
checking for fcntl.h... yes
checking dirent.h usability... yes
checking dirent.h presence... yes
checking for dirent.h... yes
checking sys/statvfs.h usability... yes
checking sys/statvfs.h presence... yes
checking for sys/statvfs.h... yes
checking utime.h usability... yes
checking utime.h presence... yes
checking for utime.h... yes
checking whether to build Filesystem TS support... yes
checking for struct dirent.d_type... yes
checking for realpath... yes
checking for utimensat... yes
checking for struct stat.st_mtim.tv_nsec... yes
checking for fchmod... yes
checking for fchmodat... yes
checking for sendfile that can copy files... yes
checking how size_t is mangled... m
checking for first version to support std::exception_ptr... 4.6.0
checking for makeinfo... ${SHELL} /mnt/lfs/sources/gcc-7.3.0/missing --run makeinfo
checking for modern makeinfo... no
checking for doxygen... no
checking for dot... no
checking for xsltproc... no
checking for xmllint... no
checking for docbook stylesheets for documentation creation... no
checking for local stylesheet directory... no
checking for epub3 stylesheets for documentation creation... no
checking for dblatex... no
checking for pdflatex... no
checking for gxx-include-dir... /tools//include/c++/7.3.0
checking for --enable-version-specific-runtime-libs... no
checking for install location... /tools//include/c++/7.3.0
configure: creating ./config.status
config.status: creating Makefile
config.status: creating scripts/testsuite_flags
config.status: creating scripts/extract_symvers
config.status: creating doc/xsl/customization.xsl
config.status: creating include/Makefile
config.status: creating libsupc++/Makefile
config.status: creating src/Makefile
config.status: creating src/c++98/Makefile
config.status: creating src/c++11/Makefile
config.status: creating src/filesystem/Makefile
config.status: creating doc/Makefile
config.status: creating po/Makefile
config.status: creating testsuite/Makefile
config.status: creating python/Makefile
config.status: creating config.h
config.status: config.h is unchanged
config.status: executing default-1 commands
config.status: executing libtool commands
config.status: executing include/gstdint.h commands
config.status: executing generate-headers commands
make: Nothing to be done for 'all'.
root@ubuntu:/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build# make
make "AR_FLAGS=" "CC_FOR_BUILD=" "CC_FOR_TARGET=" "CFLAGS=-g -O2" "CXXFLAGS=" "CFLAGS_FOR_BUILD=" "CFLAGS_FOR_TARGET=" "INSTALL=/usr/bin/install -c" "INSTALL_DATA=/usr/bin/install -c -m 644" "INSTALL_PROGRAM=/usr/bin/install -c" "INSTALL_SCRIPT=/usr/bin/install -c" "LDFLAGS=" "LIBCFLAGS=" "LIBCFLAGS_FOR_TARGET=" "MAKE=make" "MAKEINFO=/bin/bash ../../missing makeinfo " "SHELL=/bin/bash" "RUNTESTFLAGS=" "exec_prefix=/tools" "infodir=/tools/share/info" "libdir=/tools/lib" "includedir=/tools/include" "prefix=/tools" "tooldir=" "gxx_include_dir=/tools//include/c++/7.3.0" "AR=ar" "AS=as" "LD=/usr/bin/ld" "RANLIB=ranlib" "NM=/usr/bin/nm -B" "NM_FOR_BUILD=" "NM_FOR_TARGET=" "DESTDIR=" "WERROR=" all-recursive
make[1]: Entering directory '/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build'
Making all in include
make[2]: Entering directory '/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include'
make[2]: Nothing to be done for 'all'.
make[2]: Leaving directory '/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include'
Making all in libsupc++
make[2]: Entering directory '/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/libsupc++'
/bin/bash ../libtool --tag CXX --tag disable-shared   --mode=compile g++ -I/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/../libgcc -I/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/ -I/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include -I/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/libsupc++   -prefer-pic -D_GLIBCXX_SHARED -fno-implicit-templates -Wall -Wextra -Wwrite-strings -Wcast-qual -Wabi  -fdiagnostics-show-location=once    -ffunction-sections -fdata-sections  -frandom-seed=new_opa.lo   -std=gnu++1z -c ../../libsupc++/new_opa.cc
libtool: compile:  g++ -I/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/../libgcc -I/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/ -I/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include -I/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/libsupc++ -D_GLIBCXX_SHARED -fno-implicit-templates -Wall -Wextra -Wwrite-strings -Wcast-qual -Wabi -fdiagnostics-show-location=once -ffunction-sections -fdata-sections -frandom-seed=new_opa.lo -std=gnu++1z -c ../../libsupc++/new_opa.cc  -fPIC -DPIC -D_GLIBCXX_SHARED -o new_opa.o
In file included from /mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/bits/move.h:54:0,
                 from /mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/bits/nested_exception.h:40,
                 from /mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/libsupc++/exception:143,
                 from ../../libsupc++/new:40,
                 from ../../libsupc++/new_opa.cc:29:
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2656:38: error: ‘std::is_swappable_v’ declared as an ‘inline’ variable
     _GLIBCXX17_INLINE constexpr bool is_swappable_v =
                                      ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2661:38: error: ‘std::is_nothrow_swappable_v’ declared as an ‘inline’ variable
     _GLIBCXX17_INLINE constexpr bool is_nothrow_swappable_v =
                                      ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2740:38: error: ‘std::is_swappable_with_v’ declared as an ‘inline’ variable
     _GLIBCXX17_INLINE constexpr bool is_swappable_with_v =
                                      ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2745:38: error: ‘std::is_nothrow_swappable_with_v’ declared as an ‘inline’ variable
     _GLIBCXX17_INLINE constexpr bool is_nothrow_swappable_with_v =
                                      ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2877:27: error: ‘std::is_invocable_v’ declared as an ‘inline’ variable
     inline constexpr bool is_invocable_v = is_invocable<_Fn, _Args...>::value;
                           ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2881:27: error: ‘std::is_nothrow_invocable_v’ declared as an ‘inline’ variable
     inline constexpr bool is_nothrow_invocable_v
                           ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2886:27: error: ‘std::is_invocable_r_v’ declared as an ‘inline’ variable
     inline constexpr bool is_invocable_r_v
                           ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2891:27: error: ‘std::is_nothrow_invocable_r_v’ declared as an ‘inline’ variable
     inline constexpr bool is_nothrow_invocable_r_v
                           ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2898:25: error: ‘std::is_void_v’ declared as an ‘inline’ variable
   inline constexpr bool is_void_v = is_void<_Tp>::value;
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2900:25: error: ‘std::is_null_pointer_v’ declared as an ‘inline’ variable
   inline constexpr bool is_null_pointer_v = is_null_pointer<_Tp>::value;
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2902:25: error: ‘std::is_integral_v’ declared as an ‘inline’ variable
   inline constexpr bool is_integral_v = is_integral<_Tp>::value;
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2904:25: error: ‘std::is_floating_point_v’ declared as an ‘inline’ variable
   inline constexpr bool is_floating_point_v = is_floating_point<_Tp>::value;
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2906:25: error: ‘std::is_array_v’ declared as an ‘inline’ variable
   inline constexpr bool is_array_v = is_array<_Tp>::value;
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2908:25: error: ‘std::is_pointer_v’ declared as an ‘inline’ variable
   inline constexpr bool is_pointer_v = is_pointer<_Tp>::value;
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2910:25: error: ‘std::is_lvalue_reference_v’ declared as an ‘inline’ variable
   inline constexpr bool is_lvalue_reference_v =
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2913:25: error: ‘std::is_rvalue_reference_v’ declared as an ‘inline’ variable
   inline constexpr bool is_rvalue_reference_v =
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2916:25: error: ‘std::is_member_object_pointer_v’ declared as an ‘inline’ variable
   inline constexpr bool is_member_object_pointer_v =
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2919:25: error: ‘std::is_member_function_pointer_v’ declared as an ‘inline’ variable
   inline constexpr bool is_member_function_pointer_v =
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2922:25: error: ‘std::is_enum_v’ declared as an ‘inline’ variable
   inline constexpr bool is_enum_v = is_enum<_Tp>::value;
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2924:25: error: ‘std::is_union_v’ declared as an ‘inline’ variable
   inline constexpr bool is_union_v = is_union<_Tp>::value;
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2926:25: error: ‘std::is_class_v’ declared as an ‘inline’ variable
   inline constexpr bool is_class_v = is_class<_Tp>::value;
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2928:25: error: ‘std::is_function_v’ declared as an ‘inline’ variable
   inline constexpr bool is_function_v = is_function<_Tp>::value;
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2930:25: error: ‘std::is_reference_v’ declared as an ‘inline’ variable
   inline constexpr bool is_reference_v = is_reference<_Tp>::value;
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2932:25: error: ‘std::is_arithmetic_v’ declared as an ‘inline’ variable
   inline constexpr bool is_arithmetic_v = is_arithmetic<_Tp>::value;
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2934:25: error: ‘std::is_fundamental_v’ declared as an ‘inline’ variable
   inline constexpr bool is_fundamental_v = is_fundamental<_Tp>::value;
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2936:25: error: ‘std::is_object_v’ declared as an ‘inline’ variable
   inline constexpr bool is_object_v = is_object<_Tp>::value;
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2938:25: error: ‘std::is_scalar_v’ declared as an ‘inline’ variable
   inline constexpr bool is_scalar_v = is_scalar<_Tp>::value;
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2940:25: error: ‘std::is_compound_v’ declared as an ‘inline’ variable
   inline constexpr bool is_compound_v = is_compound<_Tp>::value;
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2942:25: error: ‘std::is_member_pointer_v’ declared as an ‘inline’ variable
   inline constexpr bool is_member_pointer_v = is_member_pointer<_Tp>::value;
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2944:25: error: ‘std::is_const_v’ declared as an ‘inline’ variable
   inline constexpr bool is_const_v = is_const<_Tp>::value;
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2946:25: error: ‘std::is_volatile_v’ declared as an ‘inline’ variable
   inline constexpr bool is_volatile_v = is_volatile<_Tp>::value;
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2948:25: error: ‘std::is_trivial_v’ declared as an ‘inline’ variable
   inline constexpr bool is_trivial_v = is_trivial<_Tp>::value;
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2950:25: error: ‘std::is_trivially_copyable_v’ declared as an ‘inline’ variable
   inline constexpr bool is_trivially_copyable_v =
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2953:25: error: ‘std::is_standard_layout_v’ declared as an ‘inline’ variable
   inline constexpr bool is_standard_layout_v = is_standard_layout<_Tp>::value;
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2955:25: error: ‘std::is_pod_v’ declared as an ‘inline’ variable
   inline constexpr bool is_pod_v = is_pod<_Tp>::value;
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2957:25: error: ‘std::is_literal_type_v’ declared as an ‘inline’ variable
   inline constexpr bool is_literal_type_v = is_literal_type<_Tp>::value;
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2959:25: error: ‘std::is_empty_v’ declared as an ‘inline’ variable
   inline constexpr bool is_empty_v = is_empty<_Tp>::value;
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2961:25: error: ‘std::is_polymorphic_v’ declared as an ‘inline’ variable
   inline constexpr bool is_polymorphic_v = is_polymorphic<_Tp>::value;
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2963:25: error: ‘std::is_abstract_v’ declared as an ‘inline’ variable
   inline constexpr bool is_abstract_v = is_abstract<_Tp>::value;
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2965:25: error: ‘std::is_final_v’ declared as an ‘inline’ variable
   inline constexpr bool is_final_v = is_final<_Tp>::value;
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2967:25: error: ‘std::is_signed_v’ declared as an ‘inline’ variable
   inline constexpr bool is_signed_v = is_signed<_Tp>::value;
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2969:25: error: ‘std::is_unsigned_v’ declared as an ‘inline’ variable
   inline constexpr bool is_unsigned_v = is_unsigned<_Tp>::value;
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2971:25: error: ‘std::is_constructible_v’ declared as an ‘inline’ variable
   inline constexpr bool is_constructible_v =
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2974:25: error: ‘std::is_default_constructible_v’ declared as an ‘inline’ variable
   inline constexpr bool is_default_constructible_v =
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2977:25: error: ‘std::is_copy_constructible_v’ declared as an ‘inline’ variable
   inline constexpr bool is_copy_constructible_v =
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2980:25: error: ‘std::is_move_constructible_v’ declared as an ‘inline’ variable
   inline constexpr bool is_move_constructible_v =
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2983:25: error: ‘std::is_assignable_v’ declared as an ‘inline’ variable
   inline constexpr bool is_assignable_v = is_assignable<_Tp, _Up>::value;
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2985:25: error: ‘std::is_copy_assignable_v’ declared as an ‘inline’ variable
   inline constexpr bool is_copy_assignable_v = is_copy_assignable<_Tp>::value;
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2987:25: error: ‘std::is_move_assignable_v’ declared as an ‘inline’ variable
   inline constexpr bool is_move_assignable_v = is_move_assignable<_Tp>::value;
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2989:25: error: ‘std::is_destructible_v’ declared as an ‘inline’ variable
   inline constexpr bool is_destructible_v = is_destructible<_Tp>::value;
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2991:25: error: ‘std::is_trivially_constructible_v’ declared as an ‘inline’ variable
   inline constexpr bool is_trivially_constructible_v =
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2994:25: error: ‘std::is_trivially_default_constructible_v’ declared as an ‘inline’ variable
   inline constexpr bool is_trivially_default_constructible_v =
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:2997:25: error: ‘std::is_trivially_copy_constructible_v’ declared as an ‘inline’ variable
   inline constexpr bool is_trivially_copy_constructible_v =
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:3000:25: error: ‘std::is_trivially_move_constructible_v’ declared as an ‘inline’ variable
   inline constexpr bool is_trivially_move_constructible_v =
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:3003:25: error: ‘std::is_trivially_assignable_v’ declared as an ‘inline’ variable
   inline constexpr bool is_trivially_assignable_v =
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:3006:25: error: ‘std::is_trivially_copy_assignable_v’ declared as an ‘inline’ variable
   inline constexpr bool is_trivially_copy_assignable_v =
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:3009:25: error: ‘std::is_trivially_move_assignable_v’ declared as an ‘inline’ variable
   inline constexpr bool is_trivially_move_assignable_v =
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:3012:25: error: ‘std::is_trivially_destructible_v’ declared as an ‘inline’ variable
   inline constexpr bool is_trivially_destructible_v =
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:3015:25: error: ‘std::is_nothrow_constructible_v’ declared as an ‘inline’ variable
   inline constexpr bool is_nothrow_constructible_v =
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:3018:25: error: ‘std::is_nothrow_default_constructible_v’ declared as an ‘inline’ variable
   inline constexpr bool is_nothrow_default_constructible_v =
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:3021:25: error: ‘std::is_nothrow_copy_constructible_v’ declared as an ‘inline’ variable
   inline constexpr bool is_nothrow_copy_constructible_v =
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:3024:25: error: ‘std::is_nothrow_move_constructible_v’ declared as an ‘inline’ variable
   inline constexpr bool is_nothrow_move_constructible_v =
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:3027:25: error: ‘std::is_nothrow_assignable_v’ declared as an ‘inline’ variable
   inline constexpr bool is_nothrow_assignable_v =
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:3030:25: error: ‘std::is_nothrow_copy_assignable_v’ declared as an ‘inline’ variable
   inline constexpr bool is_nothrow_copy_assignable_v =
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:3033:25: error: ‘std::is_nothrow_move_assignable_v’ declared as an ‘inline’ variable
   inline constexpr bool is_nothrow_move_assignable_v =
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:3036:25: error: ‘std::is_nothrow_destructible_v’ declared as an ‘inline’ variable
   inline constexpr bool is_nothrow_destructible_v =
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:3039:25: error: ‘std::has_virtual_destructor_v’ declared as an ‘inline’ variable
   inline constexpr bool has_virtual_destructor_v =
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:3042:27: error: ‘std::alignment_of_v’ declared as an ‘inline’ variable
   inline constexpr size_t alignment_of_v = alignment_of<_Tp>::value;
                           ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:3044:27: error: ‘std::rank_v’ declared as an ‘inline’ variable
   inline constexpr size_t rank_v = rank<_Tp>::value;
                           ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:3046:27: error: ‘std::extent_v’ declared as an ‘inline’ variable
   inline constexpr size_t extent_v = extent<_Tp, _Idx>::value;
                           ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:3048:25: error: ‘std::is_same_v’ declared as an ‘inline’ variable
   inline constexpr bool is_same_v = is_same<_Tp, _Up>::value;
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:3050:25: error: ‘std::is_base_of_v’ declared as an ‘inline’ variable
   inline constexpr bool is_base_of_v = is_base_of<_Base, _Derived>::value;
                         ^
/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/include/type_traits:3052:25: error: ‘std::is_convertible_v’ declared as an ‘inline’ variable
   inline constexpr bool is_convertible_v = is_convertible<_From, _To>::value;
                         ^
../../libsupc++/new_opa.cc:88:36: error: ‘std::align_val_t’ has not been declared
 operator new (std::size_t sz, std::align_val_t al)
                                    ^
Makefile:936: recipe for target 'new_opa.lo' failed
make[2]: *** [new_opa.lo] Error 1
make[2]: Leaving directory '/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build/libsupc++'
Makefile:510: recipe for target 'all-recursive' failed
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory '/mnt/lfs/sources/gcc-7.3.0/libstdc++-v3/build'
Makefile:417: recipe for target 'all' failed
make: *** [all] Error 2