-if config.root.host_arch in ['PowerPC', 'AArch64', 'ARM64', 'SystemZ']:
+if config.root.host_arch in ['PowerPC', 'AArch64', 'SystemZ']:
config.unsupported = True
# CMake and autoconf diverge in naming or host_arch
+if 'powerpc64' in config.root.target_triple:
+ config.unsupported = True
+
if 'aarch64' in config.root.target_triple \
or 'arm64' in config.root.target_triple:
config.unsupported = True