message: Do make clean before building openssl in linux
diff: @@ -311,7 +311,7 @@ ifeq ($(osname), mac)
  cd $(openssldir) && ./config -fPIC no-shared no-dso && ./Configure darwin64-x86_64-cc && make $(LEGACYMACOSSDK)
  endif
  ifeq ($(osname), linux)
  - cd $(openssldir) && ./config -fPIC shared no-dso && make
  + cd $(openssldir) && ./config -fPIC shared no-dso && make clean && make
  endif
  ifeq ($(osname), windows)
  cd $(openssldir) && ./config shared no-dso && ./Configure Cygwin && make
  