Re: Is running dpkg-buildpackage manually from the command line forbidden?

[Helmut Grohne <helmut@subdivi.de>]

Hi Daniel,

On Thu, Jan 16, 2020 at 12:04:12PM -0800, Daniel Schepler wrote:
> Also, by the way, the amd64 -> i386 cross built core packages largely
> worked OK, with the exception of gcc-9, which ended up with incorrect
> include-fixed/limits.h, and with a compiler that required -lssp when
> building with -fstack-protector-strong or -fstack-protector as almost
> all Debian packages do.  To anybody on the list: is there something I
> did wrong with the cross build there, which was to run
> "dpkg-buildpackage -a i386 -B -Pcross"?)

This sounds a lot like you're running into
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80677.

Cross building gcc tends to not work in my experience, see:
http://crossqa.debian.net/src/gcc-8
http://crossqa.debian.net/src/gcc-9

For gcc-9, the --host flag is not properly passed down to the gm2
component. This is reported as
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92336.

I think the expectation that it works is misguided.

Adding DEB_BUILD_OPTIONS=nocheck might increase your chances of a
successful build.

Quite certainly, more work is needed here. Unfortunately, we sorely lack
porters and everyone seems to expect that things just work without
anyone doing the work.

Helmut