https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93905
--- Comment #4 from Karol Koczwara <karol.koczwara at ig dot com> --- gcc -version COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/opt/rh/devtoolset-8/root/usr/libexec/gcc/x86_64-redhat-linux/8/lto-wrapper Target: x86_64-redhat-linux Configured with: ../configure --enable-bootstrap --enable-languages=c,c++,fortran,lto --prefix=/opt/rh/devtoolset-8/root/usr --mandir=/opt/rh/devtoolset-8/root/usr/share/man --infodir=/opt/rh/devtoolset-8/root/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-shared --enable-threads=posix --enable-checking=release --enable-multilib --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-linker-build-id --with-gcc-major-version-only --with-linker-hash-style=gnu --with-default-libstdcxx-abi=gcc4-compatible --enable-plugin --enable-initfini-array --with-isl=/builddir/build/BUILD/gcc-8.3.1-20190311/obj-x86_64-redhat-linux/isl-install --disable-libmpx --enable-gnu-indirect-function --with-tune=generic --with-arch_32=x86-64 --build=x86_64-redhat-linux Thread model: posix gcc version 8.3.1 20190311 (Red Hat 8.3.1-3) (GCC) The complete command line that triggers the bug: g++ -std=c++17 file.cpp Compiler output: main.cpp: In function ‘int main()’: main.cpp:15:15: error: ‘BaseSnapshot::~BaseSnapshot()’ is protected within this context Derived d{}; ^ main.cpp:8:5: note: declared protected here ~BaseSnapshot() = default; ^
