Hello.
I failed to reproduce the issue on a porterbox.
On arm64:
# dpkg-source -x u-boot_2024.01+dfsg-3.dsc
# cd u-boot_2024.01+dfsg
# patch -p1 < ../b8d394100d6f858c0e80786f7087f96c11d698c3.diff
# DEB_BUILD_PROFILES='pkg.uboot.notools
pkg.uboot.platform.a64-olinuxino' fake\
root debian/rules binary-arch
dpkg-gencontrol writes no warning
debian/u-boot-{rockchip,sunxi}/DEBIAN/control contain the expected
Built-Using\
fields
On armel, the control files correctly contain no Built-Using field.
Could you please describe your build environment?