Copmileation failure with newest gcc

[xinminglai]

Hi, today, I wish to try this backup solution out,
And I get the error when try to compile,

paperbak-cli-error.log

My system is gentoo,

gcc version

Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-pc-linux-gnu/10.3.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /tmp/portage/sys-devel/gcc-10.3.0/work/gcc-10.3.0/configure --host=x86_64-pc-linux-gnu --build=x86_64-pc-linux-gnu --prefix=/usr --bindir=/usr/x86_64-pc-linux-gnu/gcc-bin/10.3.0 --includedir=/usr/lib/gcc/x86_64-pc-linux-gnu/10.3.0/include --datadir=/usr/share/gcc-data/x86_64-pc-linux-gnu/10.3.0 --mandir=/usr/share/gcc-data/x86_64-pc-linux-gnu/10.3.0/man --infodir=/usr/share/gcc-data/x86_64-pc-linux-gnu/10.3.0/info --with-gxx-include-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/10.3.0/include/g++-v10 --with-python-dir=/share/gcc-data/x86_64-pc-linux-gnu/10.3.0/python --enable-languages=c,c++,fortran --enable-obsolete --enable-secureplt --disable-werror --with-system-zlib --enable-nls --without-included-gettext --enable-checking=release --with-bugurl=https://bugs.gentoo.org/ --with-pkgversion='Gentoo 10.3.0 p1' --disable-esp --enable-libstdcxx-time --enable-shared --enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu --enable-multilib --with-multilib-list=m32,m64 --disable-fixed-point --enable-targets=all --enable-libgomp --disable-libssp --disable-libada --disable-systemtap --disable-vtable-verify --disable-libvtv --without-zstd --enable-lto --without-isl --enable-default-pie --enable-default-ssp
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 10.3.0 (Gentoo 10.3.0 p1)

ld version

GNU ld (Gentoo 2.34 p6) 2.34.0
GNU ld (Gentoo 2.34 p6) 2.34.0
Supported emulations:
elf_x86_64
elf32_x86_64
elf_i386
elf_iamcu
elf_l1om
elf_k1om

Could you please have a look?

thanks

[xinminglai]

LOL, I saw my issue number is #5, which made me wonder what #4 is,
and found the compilation fix is already there.