add support for SAM, switch __throw_length_error to weak linkage

library.properties

@@ -6,5 +6,5 @@ sentence=Arduino library to add TLS functionality to any Client class
 paragraph=including the Arduino EthernetClient and WiFiClient classes (though it is better to prefer WiFClient.connectSSL if implemented). In other words, SSLClient implements encrypted communication through SSL on devices that do not otherwise support it.
 category=Communication
 url=https://github.com/OPEnSLab-OSU/SSLClient
-architectures=samd,tivac,stm32,esp32
+architectures=samd,sam,tivac,stm32,esp32
 includes=SSLClient.h

src/SSLClientParameters.cpp

@@ -1,11 +1,11 @@
 #include "SSLClientParameters.h"
 
 // fix for non-exception arduino platforms (Feather and Teensy 4.0)
-extern "C"{
-    int __attribute__((weak)) __exidx_start(){ return -1;}
-    int __attribute__((weak)) __exidx_end(){ return -1; }
+namespace std {
+    void __attribute__((weak)) __throw_length_error(char const*) {}
 }
 
+
 struct ssl_pem_decode_state {
     std::vector<char>* vect;
     size_t index = 0;