build: add (not) cross-compiled configure flags

Adds --cross-compiling and --no-cross-compiling flags
Fixes: #10271
PR-URL: #10287
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

Author: piranna

configure

@@ -79,6 +79,17 @@ parser.add_option('--dest-cpu',
 choices=valid_arch,
 help='CPU architecture to build for ({0})'.format(', '.join(valid_arch)))
 
+parser.add_option('--cross-compiling',
+action='store_true',
+dest='cross_compiling',
+default=None,
+help='force build to be considered as cross compiled')
+parser.add_option('--no-cross-compiling',
+action='store_false',
+dest='cross_compiling',
+default=None,
+help='force build to be considered as NOT cross compiled')
+
 parser.add_option('--dest-os',
 action='store',
 dest='dest_os',
@@ -765,7 +776,9 @@ def configure_node(o):
 o['variables']['target_arch'] =target_arch
 o['variables']['node_byteorder'] =sys.byteorder
 
-cross_compiling=target_arch!=host_arch
+cross_compiling= (options.cross_compiling
+ifoptions.cross_compilingisnotNone
+elsetarget_arch!=host_arch)
 want_snapshots=notoptions.without_snapshot
 o['variables']['want_separate_host_toolset'] =int(
 cross_compilingandwant_snapshots)