On Wed, Jan 31, 2024, at 6:23 AM, Simon Josefsson via Bug reports for autoconf wrote: > I got this failure on a loong64 machine for libidn2 that was > bootstrapped with autoconf 2.72: > > checking for gcc options needed to detect all undeclared functions... > cannot detect > configure: error: in `/<<PKGBUILDDIR>>/build': > configure: error: cannot make gcc report undeclared builtins
Can you please grab config.log from this failure and post it here?
