* Put all LDFLAGS that link libraries at the end of the command line. This
fixes FTBFS on Ubuntu because `--as-needed` is used by default.
(Closes: #916250) Thanks to Logan Rosen.
* ucontext.patch: Fix a type mismatch causing FTBFS on armhf
* Use GCC to compile assembly code on armhf as Clang does not support the
`ADRL` instruction. See <https://bugs.llvm.org/show_bug.cgi?id=24350>.