https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100041
--- Comment #5 from mss at tutanota dot de --- (In reply to Martin Liška from comment #4) > ... and what compiler options do you use please? Please paste output of > --verbose argument. 0 ~: gcc --verbose Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-apathy-linux-musl/10.3.0/lto-wrapper Target: x86_64-apathy-linux-musl Configured with: ../configure --prefix=/usr --libexecdir=/usr/libexec --mandir=/usr/share/man --infodir=/usr/share/info --host=x86_64-apathy-linux-musl --build=x86_64-apathy-linux-musl --target=x86_64-apathy-linux-musl --with-pkgversion=apathy --enable-checking=release --enable-languages=c,c++,lto --enable-cxx-flags='-w -pipe -O2 -mtune=native -march=native' --with-linker-hash-style=gnu --with-system-zlib --enable-__cxa_atexit --enable-linker-build-id --enable-lto --enable-plugin --enable-shared --enable-threads=posix --enable-tls --without-included-gettext --without-isl --enable-bootstrap --disable-default-pie --disable-default-ssp --disable-fixed-point --disable-libmpx --disable-libmudflap --disable-libsanitizer --disable-libstdcxx-pch --disable-multilib --disable-nls --disable-rpath --disable-static --disable-symvers --disable-werror Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 10.3.0 (apathy)