diff --git a/scripts/common.make b/scripts/common.make
index cee8bd2..12fd27f 100644
--- a/scripts/common.make
+++ b/scripts/common.make
@@ -12,3 +12,53 @@
 		-lmbedtls$(SHARED_SUFFIX)	\
 		-lmbedx509$(SHARED_SUFFIX)	\
 		-lmbedcrypto$(SHARED_SUFFIX)
+
+include ../3rdparty/Makefile.inc
+LOCAL_CFLAGS+=$(THIRDPARTY_INCLUDES)
+
+ifndef SHARED
+MBEDLIBS=../library/libmbedcrypto.a ../library/libmbedx509.a ../library/libmbedtls.a
+else
+MBEDLIBS=../library/libmbedcrypto.$(DLEXT) ../library/libmbedx509.$(DLEXT) ../library/libmbedtls.$(DLEXT)
+endif
+
+ifdef DEBUG
+LOCAL_CFLAGS += -g3
+endif
+
+# if we're running on Windows, build for Windows
+ifdef WINDOWS
+WINDOWS_BUILD=1
+endif
+
+ifdef WINDOWS_BUILD
+  DLEXT=dll
+  EXEXT=.exe
+  LOCAL_LDFLAGS += -lws2_32 -lbcrypt
+  ifdef SHARED
+    SHARED_SUFFIX=.$(DLEXT)
+  endif
+
+else # Not building for Windows
+  DLEXT ?= so
+  EXEXT=
+  SHARED_SUFFIX=
+
+  ifeq ($(THREADING),pthread)
+    LOCAL_LDFLAGS += -lpthread
+  endif
+endif
+
+ifdef WINDOWS
+PYTHON ?= python
+else
+PYTHON ?= $(shell if type python3 >/dev/null 2>/dev/null; then echo python3; else echo python; fi)
+endif
+
+# See root Makefile
+GEN_FILES ?= yes
+ifdef GEN_FILES
+gen_file_dep =
+else
+gen_file_dep = |
+endif