This makes it possible to provide armv7 as additional architecture in
Alpine, next to armhf. See the discussion in this ML thread:
<https://lists.alpinelinux.org/alpine-devel/6271.html>
It's done by adding armv7 next to armhf in the arch line and also
!armv7 where the arch line said !armhf. The following script was used:
/usr/lib/ocaml/dtoa/libdtoa_stubs.a(bignum.o): In function `bignum_align':
/home/buildozer/aports/testing/ocaml-dtoa/src/ocaml-dtoa-0.3.1/_build/default/src/bignum.c:108:(.text+0x4b0): call to `bignum_align.part.4' lacks nop, can't restore toc; (-mcmodel=small toc adjust stub)
/usr/lib/gcc/powerpc64le-alpine-linux-musl/6.4.0/../../../../powerpc64le-alpine-linux-musl/bin/ld: final link failed: Bad value
collect2: error: ld returned 1 exit status
dtoa is flow's dependency (ocaml-dtoa)
