Added local C dependency dicovery and changes checking, to speed up build.
from .. import toolchain_gcc
class Win32_target(toolchain_gcc):
extension = ".dll"
CustomLDFLAGS = ["-shared",
"-Wl,--export-all-symbols",
"-Wl,--enable-auto-import",
"-Wl,--whole-archive",
"-Wl,--no-whole-archive",
"-Wl,--exclude-libs,All"]