Ubuntu 21.10 fails to compile OpenWrt 21.02 hosts tools (m4)

Michal Vasilek michal.vasilek at nic.cz
Mon Oct 18 08:25:25 PDT 2021

On 10/18/21 4:54 PM, Hannu Nyman wrote:
> I noticed that Rosen has recently updated m4 in master to 1.4.19, so I 
> tested cherry-picking the 1.4.19 version update to openwrt-21.02, and it 
> helps. m4 again compiles  ;-)
> Apparently the m4 version 1.4.19 in master contains some fixes for host 
> gcc 11, or something similar?

This is probably because Ubuntu 21.10 has a new version of glibc which 
is not supported by 1.4.18, but is supported by 1.4.19.

There are pull requests on GitHub to backport the m4 updates to stable 


More information about the openwrt-devel mailing list