configure.ac file

[Pinkaso]

Hey forum
This is probably extremely elementary, so sorry for being such a noob, yet i must ask here, because my search of information in the forum and on the web did not bear fruit:

I'm following the Bare Bones tutorial, and trying to upgrade my GCC version. my problems running the configure script turned out to be because i had no configure.ac file to run autoconf on (Duh.). so now i'm not sure how to write my configure.ac file.
since the tutorial doesn't speak of this i assume there is some default file which works for a lot of cases, maybe?
i couldn't find decisive information on this, i'll be grateful for some help on this.

thanks!

[Octocontrabass]

Which GCC are you updating: your host compiler or your cross compiler?

[Pinkaso]

Trying to bootstrap 9.4.0 on my host compiler which is currently 9.3.0
This is done on a ubuntu image on a VM btw

[Octocontrabass]

What makes GCC 9.4 so important that you have to build it yourself instead of waiting for the Ubuntu packages to update?

A lot of the advice on the wiki is old. The advice about updating GCC hasn't been updated since the GCC version numbering changed. If you're planning on building a GCC 9.4 cross-compiler, your GCC 9.3 host compiler will work fine.

[Pinkaso]

Nothing, really. my goal is to learn as much as i can from this tutorial, through as much hands-on experience possible.

Also, the same configure command is used to build the cross-compiler, so i'll have to handle it anyway down the road.

[iansjack]

I'm puzzled by this thread. The missing file should be present in the GCC source code that you downloaded. Whether you need to build this particular version of GCC is a red herring.

I've just downloaded and untarred the source for gcc-9.4.0, from ftp.gnu.org, and can confirm that configure.ac is present in the top level of the source directory.

Download the source archive again.

[Pinkaso]

Ok great i downloaded the files again and i got it now.

Thank you everyone for the help!