Thank you for the hint! — that work just perfectly. Best,
Ken > On Nov 3, 2021, at 11:01 AM, Cameron MacPherson > <cameron.macpher...@gmail.com> wrote: > > you have to add the following to your /etc/apt/sources.list to get the > experimental packages > > deb http://ftp.ports.debian.org/debian-ports/ > <http://ftp.ports.debian.org/debian-ports/> experimental main > > see here > https://wiki.debian.org/DebianExperimental > <https://wiki.debian.org/DebianExperimental> > > > On Wed, Nov 3, 2021, 10:42 AM Ken Cunningham <ken.cunningham.web...@gmail.com > <mailto:ken.cunningham.web...@gmail.com>> wrote: > It appears that when building portable code, the ax_gcc_archflag.m4 macro > clears -mcpu for almost every arch except powerpc: > > https://github.com/libffi/libffi/blob/master/m4/ax_gcc_archflag.m4#L241 > <https://github.com/libffi/libffi/blob/master/m4/ax_gcc_archflag.m4#L241> > > case $host_cpu in i*86|x86_64*|amd64*) flag_prefixes="$flag_prefixes -mcpu= > -m";; esac > > > > The fact that PowerPC is excluded must result in m4 passing the “-mcpu=“ flag > matching the buildbot’s CPU, and breaks everything older than the buildbot. > > This must happen with any build that uses this ax_gcc_archflag.m4 macro. > > I wonder why powerpc* is excluded? Seems like this line should rather be: > > case $host_cpu in i*86|x86_64*|powerpc*|amd64*) > flag_prefixes="$flag_prefixes -mcpu= -m";; esac > > > Ken > > PS. Although I did not as yet sort out getting the “experimental” packages (I > keep getting an error when I try to use that option), building libffi in a > couple of minutes on the local machine and installing that of course works > easily. — K > > > > On Nov 2, 2021, at 2:01 PM, John Paul Adrian Glaubitz > > <glaub...@physik.fu-berlin.de <mailto:glaub...@physik.fu-berlin.de>> wrote: > > > > On 11/2/21 21:59, Cameron MacPherson wrote: > >> i got the 3.4.2-3+ports package after apt upgrade -t experimental and there > >> are no illegal instructions > > > > As I expected. The build log didn't have any traces of "-mcpu=power8". > > > > Adrian > > > > -- > > .''`. John Paul Adrian Glaubitz > > : :' : Debian Developer - glaub...@debian.org <mailto:glaub...@debian.org> > > `. `' Freie Universitaet Berlin - glaub...@physik.fu-berlin.de > > <mailto:glaub...@physik.fu-berlin.de> > > `- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913 > > >
