HaxeFoundation.haxe/extra/extract.hxml

# To rebuild Flash externs (quoting ncannasse):
# - Remove haxe/std/flash/DIR where DIR is all directories except _std
# - Place library.swf (extracted from playerglobal.swc) next to extract.hxml
# - Run haxe extract.hxml
# - Restore removed haxe/std/flash/DIR directories
# - Copy directories from hxclasses/flash to haxe/std/flash, overwriting restored ones
--debug
--swf-lib library.swf
-swf test.swf
--swf-version 15
--macro patchTypes("../extra/extract.patch")
-D gen-hx-classes