Merge pull request #164 from Faless/feat/mbedtls

[TLS] Move from OpenSSL to mbedTLS

SConstruct

@@ -183,18 +183,21 @@ else:
     sources.append("src/init_gdextension.cpp")
 
 # Add our build tools
-for tool in ["openssl", "cmake", "rtc"]:
+for tool in ["cmake", "mbedtls", "rtc"]:
     env.Tool(tool, toolpath=["tools"])
 
-ssl = env.OpenSSL()
+# Make sure Substfile is also loaded
+env.Tool("textfile")
 
-rtc = env.BuildLibDataChannel(ssl)
+mbedtls = env.BuildMbedTLS()
+
+rtc = env.BuildLibDataChannel(mbedtls)
 
 # Forces building our sources after OpenSSL and libdatachannel.
 # This is because OpenSSL headers are generated by their build system and SCons doesn't know about them.
 # Note: This might not be necessary in this specific case since our sources doesn't include OpenSSL headers directly,
 # but it's better to be safe in case of indirect inclusions by one of our other dependencies.
-env.Depends(sources, ssl + rtc)
+env.Depends(sources, rtc + mbedtls)
 
 # We want to statically link against libstdc++ on Linux to maximize compatibility, but we must restrict the exported
 # symbols using a GCC version script, or we might end up overriding symbols from other libraries.