https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118369
Ilya Leoshkevich <iii at linux dot ibm.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords|build | --- Comment #8 from Ilya Leoshkevich <iii at linux dot ibm.com> --- libc6-dev-i386 is installed: iii@cfarm422:~$ dpkg -l|grep libc6-dev-i386 ii libc6-dev-i386 2.36-9+deb12u9 amd64 GNU C Library: 32-bit development libraries for AMD64 ii libc6-dev-i386-cross 2.36-8cross1 all GNU C Library: Development Libraries and Header Files (for cross-compiling) There seems to be one missing build dependency: iii@cfarm422:~$ apt-get source gcc-12 iii@cfarm422:~$ cd gcc-12-12.2.0/ iii@cfarm422:~/gcc-12-12.2.0$ dpkg-checkbuilddeps dpkg-checkbuilddeps: error: Unmet build dependencies: g++-multilib But I think this may be bogus, because the versioned variant is installed: iii@cfarm422:~/gcc-12-12.2.0$ dpkg -l|grep multilib ii g++-12-multilib 12.2.0-14 amd64 GNU C++ compiler (multilib support) ii gcc-12-multilib 12.2.0-14 amd64 GNU C compiler (multilib support) and g++-multilib itself contains only documentation.