Maintainers for gobjc-12-s390x-linux-gnu are Debian GCC Maintainers <[email protected]>.
You may want to refer to the following packages that are part of the same source: cpp-12-aarch64-linux-gnu, cpp-12-arm-linux-gnueabi, cpp-12-arm-linux-gnueabihf, cpp-12-i686-linux-gnu, cpp-12-powerpc64le-linux-gnu, cpp-12-s390x-linux-gnu, cpp-12-x86-64-linux-gnu, g++-12-aarch64-linux-gnu, g++-12-arm-linux-gnueabi, g++-12-arm-linux-gnueabihf, g++-12-i686-linux-gnu, g++-12-multilib-i686-linux-gnu, g++-12-multilib-s390x-linux-gnu, g++-12-multilib-x86-64-linux-gnu, g++-12-powerpc64le-linux-gnu, g++-12-s390x-linux-gnu, g++-12-x86-64-linux-gnu, gcc-12-aarch64-linux-gnu, gcc-12-aarch64-linux-gnu-base, gcc-12-arm-linux-gnueabi, gcc-12-arm-linux-gnueabi-base, gcc-12-arm-linux-gnueabihf, gcc-12-arm-linux-gnueabihf-base, gcc-12-cross-base, gcc-12-i686-linux-gnu, gcc-12-i686-linux-gnu-base, gcc-12-multilib-i686-linux-gnu, gcc-12-multilib-s390x-linux-gnu, gcc-12-multilib-x86-64-linux-gnu, gcc-12-plugin-dev-aarch64-linux-gnu, gcc-12-plugin-dev-arm-linux-gnueabi, gcc-12-plugin-dev-arm-linux-gnueabihf, gcc-12-plugin-dev-i686-linux-gnu, gcc-12-plugin-dev-powerpc64le-linux-gnu, gcc-12-plugin-dev-s390x-linux-gnu, gcc-12-plugin-dev-x86-64-linux-gnu, gcc-12-powerpc64le-linux-gnu, gcc-12-powerpc64le-linux-gnu-base, gcc-12-s390x-linux-gnu, gcc-12-s390x-linux-gnu-base, gcc-12-x86-64-linux-gnu, gcc-12-x86-64-linux-gnu-base, gccgo-12-aarch64-linux-gnu, gccgo-12-arm-linux-gnueabi, gccgo-12-arm-linux-gnueabihf, gccgo-12-i686-linux-gnu, gccgo-12-multilib-i686-linux-gnu, gccgo-12-multilib-s390x-linux-gnu, gccgo-12-multilib-x86-64-linux-gnu, gccgo-12-powerpc64le-linux-gnu, gccgo-12-s390x-linux-gnu, gccgo-12-x86-64-linux-gnu, gdc-12-aarch64-linux-gnu, gdc-12-arm-linux-gnueabi, gdc-12-arm-linux-gnueabihf, gdc-12-i686-linux-gnu, gdc-12-multilib-i686-linux-gnu, gdc-12-multilib-s390x-linux-gnu, gdc-12-multilib-x86-64-linux-gnu, gdc-12-powerpc64le-linux-gnu, gdc-12-s390x-linux-gnu, gdc-12-x86-64-linux-gnu, gfortran-12-aarch64-linux-gnu, gfortran-12-arm-linux-gnueabi, gfortran-12-arm-linux-gnueabihf, gfortran-12-i686-linux-gnu, gfortran-12-multilib-i686-linux-gnu, gfortran-12-multilib-s390x-linux-gnu, gfortran-12-multilib-x86-64-linux-gnu, gfortran-12-powerpc64le-linux-gnu, gfortran-12-s390x-linux-gnu, gfortran-12-x86-64-linux-gnu, gm2-12-aarch64-linux-gnu, gm2-12-arm-linux-gnueabi, gm2-12-arm-linux-gnueabihf, gm2-12-i686-linux-gnu, gm2-12-powerpc64le-linux-gnu, gm2-12-s390x-linux-gnu, gm2-12-x86-64-linux-gnu, gnat-12-aarch64-linux-gnu, gnat-12-arm-linux-gnueabi, gnat-12-arm-linux-gnueabihf, gnat-12-i686-linux-gnu, gnat-12-powerpc64le-linux-gnu, gnat-12-s390x-linux-gnu, gnat-12-x86-64-linux-gnu, gobjc++-12-aarch64-linux-gnu, gobjc++-12-arm-linux-gnueabi, gobjc++-12-arm-linux-gnueabihf, gobjc++-12-i686-linux-gnu, gobjc++-12-multilib-i686-linux-gnu, gobjc++-12-multilib-s390x-linux-gnu, gobjc++-12-multilib-x86-64-linux-gnu, gobjc++-12-powerpc64le-linux-gnu, gobjc++-12-s390x-linux-gnu, gobjc++-12-x86-64-linux-gnu, gobjc-12-aarch64-linux-gnu, gobjc-12-arm-linux-gnueabi, gobjc-12-arm-linux-gnueabihf, gobjc-12-i686-linux-gnu, gobjc-12-multilib-i686-linux-gnu, gobjc-12-multilib-s390x-linux-gnu, gobjc-12-multilib-x86-64-linux-gnu, gobjc-12-powerpc64le-linux-gnu, gobjc-12-x86-64-linux-gnu, lib32gcc-12-dev-amd64-cross, lib32gcc-12-dev-s390x-cross, lib32gfortran-12-dev-amd64-cross, lib32gfortran-12-dev-s390x-cross, lib32go-12-dev-amd64-cross, lib32go-12-dev-s390x-cross, lib32go21-amd64-cross, lib32go21-s390x-cross, lib32gphobos-12-dev-amd64-cross, lib32gphobos-12-dev-s390x-cross, lib32gphobos3-amd64-cross, lib32gphobos3-s390x-cross, lib32lsan0-amd64-cross, lib32objc-12-dev-amd64-cross, lib32objc-12-dev-s390x-cross, lib32stdc++-12-dev-amd64-cross, lib32stdc++-12-dev-s390x-cross, lib64gcc-12-dev-i386-cross, lib64gfortran-12-dev-i386-cross, lib64go-12-dev-i386-cross, lib64go21-i386-cross, lib64gphobos-12-dev-i386-cross, lib64gphobos3-i386-cross, lib64objc-12-dev-i386-cross, lib64stdc++-12-dev-i386-cross, libgcc-12-dev-amd64-cross, libgcc-12-dev-arm64-cross, libgcc-12-dev-armel-cross, libgcc-12-dev-armhf-cross, libgcc-12-dev-i386-cross, libgcc-12-dev-ppc64el-cross, libgcc-12-dev-s390x-cross, libgfortran-12-dev-amd64-cross, libgfortran-12-dev-arm64-cross, libgfortran-12-dev-armel-cross, libgfortran-12-dev-armhf-cross, libgfortran-12-dev-i386-cross, libgfortran-12-dev-ppc64el-cross, libgfortran-12-dev-s390x-cross, libgm2-12-dev-amd64-cross, libgm2-12-dev-arm64-cross, libgm2-12-dev-armel-cross, libgm2-12-dev-armhf-cross, libgm2-12-dev-i386-cross, libgm2-12-dev-ppc64el-cross, libgm2-12-dev-s390x-cross, libgm2-17-amd64-cross, libgm2-17-arm64-cross, libgm2-17-armel-cross, libgm2-17-armhf-cross, libgm2-17-i386-cross, libgm2-17-ppc64el-cross, libgm2-17-s390x-cross, libgnat-12-amd64-cross, libgnat-12-arm64-cross, libgnat-12-armel-cross, libgnat-12-armhf-cross, libgnat-12-i386-cross, libgnat-12-ppc64el-cross, libgnat-12-s390x-cross, libgo-12-dev-amd64-cross, libgo-12-dev-arm64-cross, libgo-12-dev-armel-cross, libgo-12-dev-armhf-cross, libgo-12-dev-i386-cross, libgo-12-dev-ppc64el-cross, libgo-12-dev-s390x-cross, libgo21-amd64-cross, libgo21-arm64-cross, libgo21-armel-cross, libgo21-armhf-cross, libgo21-i386-cross, libgo21-ppc64el-cross, libgo21-s390x-cross, libgphobos-12-dev-amd64-cross, libgphobos-12-dev-arm64-cross, libgphobos-12-dev-armel-cross, libgphobos-12-dev-armhf-cross, libgphobos-12-dev-i386-cross, libgphobos-12-dev-ppc64el-cross, libgphobos-12-dev-s390x-cross, libgphobos3-amd64-cross, libgphobos3-arm64-cross, libgphobos3-armel-cross, libgphobos3-armhf-cross, libgphobos3-i386-cross, libgphobos3-ppc64el-cross, libgphobos3-s390x-cross, libobjc-12-dev-amd64-cross, libobjc-12-dev-arm64-cross, libobjc-12-dev-armel-cross, libobjc-12-dev-armhf-cross, libobjc-12-dev-i386-cross, libobjc-12-dev-ppc64el-cross, libobjc-12-dev-s390x-cross, libstdc++-12-dev-amd64-cross, libstdc++-12-dev-arm64-cross, libstdc++-12-dev-armel-cross, libstdc++-12-dev-armhf-cross, libstdc++-12-dev-i386-cross, libstdc++-12-dev-ppc64el-cross, libstdc++-12-dev-s390x-cross, libstdc++-12-pic-amd64-cross, libstdc++-12-pic-arm64-cross, libstdc++-12-pic-armel-cross, libstdc++-12-pic-armhf-cross, libstdc++-12-pic-i386-cross, libstdc++-12-pic-ppc64el-cross, libstdc++-12-pic-s390x-cross, libx32gcc-12-dev-amd64-cross, libx32gcc-12-dev-i386-cross, libx32gfortran-12-dev-amd64-cross, libx32gfortran-12-dev-i386-cross, libx32go-12-dev-amd64-cross, libx32go-12-dev-i386-cross, libx32go21-amd64-cross, libx32go21-i386-cross, libx32gphobos-12-dev-amd64-cross, libx32gphobos-12-dev-i386-cross, libx32gphobos3-amd64-cross, libx32gphobos3-i386-cross, libx32lsan0-amd64-cross, libx32objc-12-dev-amd64-cross, libx32objc-12-dev-i386-cross, libx32stdc++-12-dev-amd64-cross, libx32stdc++-12-dev-i386-cross.
You might like to refer to the gobjc-12-s390x-linux-gnu package page, to the Package Tracking System, or to the source package src:gcc-12-cross's bug page.
If you find a bug not listed here, please report it.