Package: src:gcc-mingw-w64
Version: 29
Severity: important
Tags: sid forky
d/rules reads:
$(foreach flag,$(BUILDFLAGS),$(eval $(flag)_FOR_TARGET := $(shell
$(dpkg_buildflags_target) --get $(flag))))
and the good thing at least, that this fails in the Ubuntu builds at
least, because the build flags include some host specific non-generic
flags (-mbranch-protection=none on arm64, -mbackchain on s390x).
These builds fail at the first place building the libgcc target library
after the compiler is built.
This is plain wrong. These flags are for the host, not for any of your
mingw targets, and I wouldn't be surprised, that different code for the
target is generated depending on the host.
You need to set these on your own, independent of the host that you are
building on.
