On Mon, 2022-05-09 at 13:15 -0400, Dennis Clarke via Gcc-help wrote: > > Not sure what is causing this on a Linux armv7 32-bit machine but I > have > libc6-dev installed and that provides : > > # ls -lapb /usr/include/arm-linux-gnueabihf/bits/libc-header-start.h Normally GCC won't search /usr/include/{multiarch directory} for headers. So if you want to bootstrap GCC on a distro with such a directory you'll need --enable-multiarch. > This is a reasonable little Debian machine Maybe it's reasonable or not, Debian multiarch is described at: https://wiki.debian.org/Multiarch/ -- Xi Ruoyao <xry111@xxxxxxxxxxx> School of Aerospace Science and Technology, Xidian University