Yes,I really mean multi-arch. I use ubuntu 18.04 LTS, follow this page,the package "gcc-multilib, libc-dev:i386" must be installed.But I need arm-cross-toolchains, ?? Outlook for Android<https://aka.ms/ghei36> ________________________________ From: Jonathan Wakely <jwakely.gcc@xxxxxxxxx> Sent: Thursday, November 1, 2018 1:40:17 AM To: kixort@xxxxxxxxxxx Cc: gcc-help Subject: Re: Build gcc from source On Wed, 31 Oct 2018 at 15:42, Ailomanga sakamoto wrote: > > Hello. > I want to build a multi-arch gcc that I can build 32 64 and x32 binary. But there is no guide in the documentation. Yes there is, see --with-multilib-list at https://gcc.gnu.org/install/configure.html Do you really mean multi-arch, or do you mean multi-lib? If you really mean multi-arch (i.e. Debian and Ubuntu style directory layout) then use the --enable-multiarch option, documented in the same page. > Could you tell me the detailed way? https://gcc.gnu.org/wiki/InstallingGCC and add the --with-multilib-list=m32,m64,mx32 option.
