testing/mono: block on riscv64

testing/mono/APKBUILD

@@ -8,7 +8,8 @@ pkgrel=1
 pkgdesc="Free implementation of the .NET platform including runtime and compiler"
 url="https://www.mono-project.com/"
 # mips64 - #error "MIPS unsupported ABI"
-arch="all !s390x !ppc64le !mips64"
+# riscv64 - mono_os_mutex_init_type: pthread_mutexattr_setprotocol failed with "Function not implemented" (38)
+arch="all !s390x !ppc64le !mips64 !riscv64"
 license="MIT"
 depends="python3"
 depends_dev="$pkgname=$pkgver-r$pkgrel libgdiplus-dev zlib-dev"