Build error with gcc 13.2.0

[losh11]

I span up a new DigitalOcean VM running Ubuntu 23.10. Installed all requirements:

sudo apt-get install build-essential libboost-all-dev libssl-dev

My gcc version:

$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-linux-gnu/13/lto-wrapper
OFFLOAD_TARGET_NAMES=nvptx-none:amdgcn-amdhsa
OFFLOAD_TARGET_DEFAULT=1
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu 13.2.0-4ubuntu3' --with-bugurl=file:///usr/share/doc/gcc-13/README.Bugs --enable-languages=c,ada,c++,go,d,fortran,objc,obj-c++,m2 --prefix=/usr --with-gcc-major-version-only --program-suffix=-13 --program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/libexec --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --enable-bootstrap --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-plugin --enable-default-pie --with-system-zlib --enable-libphobos-checking=release --with-target-system-zlib=auto --enable-objc-gc=auto --enable-multiarch --disable-werror --enable-cet --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-offload-targets=nvptx-none=/build/gcc-13-XYspKM/gcc-13-13.2.0/debian/tmp-nvptx/usr,amdgcn-amdhsa=/build/gcc-13-XYspKM/gcc-13-13.2.0/debian/tmp-gcn/usr --enable-offload-defaulted --without-cuda-driver --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu --with-build-config=bootstrap-lto-lean --enable-link-serialization=2
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 13.2.0 (Ubuntu 13.2.0-4ubuntu3) 
root@dnsseeder-main:~/litecoin-seeder# ls
Makefile  bitcoin.cpp  bitcoin.o   compat.h  db.h     dns.h  main.cpp     netbase.h     protocol.h   strlcpy.h  uint256.h  util.h
README    bitcoin.h    combine.pl  db.cpp    dns.cpp  dns.o  netbase.cpp  protocol.cpp  serialize.h  test.pl    util.cpp
root@dnsseeder-main:~/litecoin-seeder# nano netbase.h
root@dnsseeder-main:~/litecoin-seeder# g++ -v
Using built-in specs.
COLLECT_GCC=g++
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-linux-gnu/13/lto-wrapper
OFFLOAD_TARGET_NAMES=nvptx-none:amdgcn-amdhsa
OFFLOAD_TARGET_DEFAULT=1
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu 13.2.0-4ubuntu3' --with-bugurl=file:///usr/share/doc/gcc-13/README.Bugs --enable-languages=c,ada,c++,go,d,fortran,objc,obj-c++,m2 --prefix=/usr --with-gcc-major-version-only --program-suffix=-13 --program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/libexec --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --enable-bootstrap --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-plugin --enable-default-pie --with-system-zlib --enable-libphobos-checking=release --with-target-system-zlib=auto --enable-objc-gc=auto --enable-multiarch --disable-werror --enable-cet --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-offload-targets=nvptx-none=/build/gcc-13-XYspKM/gcc-13-13.2.0/debian/tmp-nvptx/usr,amdgcn-amdhsa=/build/gcc-13-XYspKM/gcc-13-13.2.0/debian/tmp-gcn/usr --enable-offload-defaulted --without-cuda-driver --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu --with-build-config=bootstrap-lto-lean --enable-link-serialization=2
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 13.2.0 (Ubuntu 13.2.0-4ubuntu3)

And trying to build fails with error:

$ make
g++ -std=c++11 -pthread -O3 -g0 -Wall -Wno-unused -Wno-sign-compare -Wno-reorder -Wno-comment -c -o dns.o dns.cpp
g++ -std=c++11 -pthread -O3 -g0 -Wall -Wno-unused -Wno-sign-compare -Wno-reorder -Wno-comment -c -o bitcoin.o bitcoin.cpp
g++ -std=c++11 -pthread -O3 -g0 -Wall -Wno-unused -Wno-sign-compare -Wno-reorder -Wno-comment -c -o netbase.o netbase.cpp
In file included from netbase.cpp:13:
strlcpy.h:27:15: error: ‘size_t strlcpy(char*, const char*, size_t)’ redeclared inline without ‘gnu_inline’ attribute
   27 | inline size_t strlcpy(char *dst, const char *src, size_t siz)
      |               ^~~~~~~
In file included from /usr/include/features.h:502,
                 from /usr/include/x86_64-linux-gnu/c++/13/bits/os_defines.h:39,
                 from /usr/include/x86_64-linux-gnu/c++/13/bits/c++config.h:679,
                 from /usr/include/c++/13/bits/requires_hosted.h:31,
                 from /usr/include/c++/13/string:38,
                 from netbase.h:7,
                 from netbase.cpp:6:
/usr/include/x86_64-linux-gnu/bits/string_fortified.h:150:1: note: ‘size_t strlcpy(char*, const char*, size_t)’ previously defined here
  150 | __NTH (strlcpy (char *__restrict __dest, const char *__restrict __src,
      | ^~~~~
strlcpy.h:62:15: error: ‘size_t strlcat(char*, const char*, size_t)’ redeclared inline without ‘gnu_inline’ attribute
   62 | inline size_t strlcat(char *dst, const char *src, size_t siz)
      |               ^~~~~~~
/usr/include/x86_64-linux-gnu/bits/string_fortified.h:167:1: note: ‘size_t strlcat(char*, const char*, size_t)’ previously defined here
  167 | __NTH (strlcat (char *__restrict __dest, const char *__restrict __src,
      | ^~~~~
make: *** [Makefile:8: netbase.o] Error 1