Package: src:gcc-10 Version: 10.1.0-4 Currently, on i386, apt install gcc-10-i686-linux-gnu:amd64
The following packages have unmet dependencies: gcc-10-i686-linux-gnu:amd64 : Depends: cpp-10-i686-linux-gnu:amd64 (= 10.1.0-3cross1) but it is not going to be installed Depends: libcc1-0:amd64 (>= 10) but it is not going to be installed Depends: binutils-i686-linux-gnu:amd64 (>= 2.34) but it is not going to be installed Depends: libgcc-10-dev-i386-cross:amd64 (>= 10.1.0-3cross1) but it is not installable Depends: libc6:amd64 (>= 2.14) but it is not going to be installed Depends: libgcc-s1:amd64 (>= 3.0) but it is not going to be installed Depends: libgmp10:amd64 (>= 2:5.0.1~) but it is not going to be installed Depends: libisl22:amd64 (>= 0.15) but it is not going to be installed Depends: libmpc3:amd64 but it is not going to be installed Depends: libmpfr6:amd64 (>= 3.1.3) but it is not going to be installed Depends: libstdc++6:amd64 (>= 5) but it is not going to be installed Depends: zlib1g:amd64 (>= 1:1.1.4) but it is not going to be installed Recommends: libc6-dev-i386-cross:amd64 (>= 2.30-1~) E: Unable to correct problems, you have held broken packages. The major problem is Depends: libgcc-10-dev-i386-cross:amd64 (>= 10.1.0-3cross1) but it is not installable we need to mark gcc-10-i686-linux-gnu depends on libgcc-10-dev-i386-cross:all to solve this problem. -- YunQiang Su