Scallywag Mingw64 source build faile with undefined or explicit noarch ARCH

Hi folks,

Trying to update mingw64 x86_64 libevent build in Scallywag, source build fails 
whether ARCH is undefined or explicitly defined as noarch.

scallywag: parsing cygport 
/cygdrive/d/a/scallywag/mingw64-x86_64-libevent/mingw64-x86_64-libevent.cygport
scallywag: BUILD_REQUIRES="
	mingw64-$XARCH-openssl mingw64-$XARCH-binutils mingw64-$XARCH-gcc-core
	doxygen libtool
"
scallywag: CROSS_HOST="$XARCH-w64-mingw32"
scallywag: ARCHES="all"
scallywag: INHERITED=" cross "
scallywag: build dependencies (from BUILD_REQUIRES): 
doxygen,libtool,mingw64-$XARCH-binutils,mingw64-$XARCH-gcc-core,mingw64-$XARCH-openssl
scallywag: cross_host: $XARCH-w64-mingw32, pkg_prefix is unknown
scallywag: build ARCH: source, cygport ARCHes: []
scallywag: arch(es) to build for could not be determined
Error: Process completed with exit code 1.


scallywag: parsing cygport 
/cygdrive/d/a/scallywag/mingw64-x86_64-libevent/mingw64-x86_64-libevent.cygport
scallywag: BUILD_REQUIRES="
	mingw64-$XARCH-openssl mingw64-$XARCH-binutils mingw64-$XARCH-gcc-core
	doxygen libtool
"
scallywag: CROSS_HOST="$XARCH-w64-mingw32"
scallywag: ARCHES="noarch"
scallywag: INHERITED=" cross "
scallywag: build dependencies (from BUILD_REQUIRES): 
doxygen,libtool,mingw64-$XARCH-binutils,mingw64-$XARCH-gcc-core,mingw64-$XARCH-openssl
scallywag: cross_host: $XARCH-w64-mingw32, pkg_prefix is unknown
scallywag: build ARCH: source, cygport ARCHes: []
scallywag: arch(es) to build for could not be determined
Error: Process completed with exit code 1.

-- 
Take care. Thanks, Brian Inglis              Calgary, Alberta, Canada

La perfection est atteinte                   Perfection is achieved
non pas lorsqu'il n'y a plus rien à ajouter  not when there is no more to add
mais lorsqu'il n'y a plus rien à retrancher  but when there is no more to cut
                                 -- Antoine de Saint-Exupéry