testing/ocaml-obuild: rebuild against ocaml 4.13.0

Also enable on archs supported by ocaml aport

testing/ocaml-obuild/APKBUILD

@@ -3,17 +3,22 @@
 pkgname=ocaml-obuild
 _pkgname=obuild
 pkgver=0.1.10
-pkgrel=0
+pkgrel=1
 pkgdesc="Simple package build system for ocaml"
 url="https://github.com/ocaml-obuild/obuild"
-arch="all !x86 !armhf !armv7 !s390x !mips !mips64 !riscv64"  # limited by ocaml aport
+arch="all !mips64 !riscv64"  # limited by ocaml aport
 license="BSD-2-Clause"
 depends="ocaml-runtime"
-makedepends="ocaml ocaml-findlib opam"
+makedepends="ocaml ocaml-findlib opam bash"
 options="!check"  # no tests provided
-source="$pkgname-$pkgver.tar.gz::$url/archive/obuild-v$pkgver.tar.gz"
+source="$pkgname-$pkgver.tar.gz::https://github.com/ocaml-obuild/obuild/archive/obuild-v$pkgver.tar.gz"
 builddir="$srcdir/$_pkgname-obuild-v$pkgver"
 
+# 32bit archs
+case "$CARCH" in
+    arm*|x86) options="$options textrels" ;;
+esac
+
 build() {
 	./bootstrap
 }