title: AZURE Cloud integration
body: <p>I am working on the Azure iot cloud integration, i successfully build my SDK, i am trying compiling with my application, it is giving dependency errors and getting error like given below,</p>
  <pre><code> ../../inc/azure_c_shared_utility/crt_abstractions.h:58:23: error: two or more data types in declaration specifiers
   typedef unsigned char _Bool;
                         
  ../../inc/azure_c_shared_utility/crt_abstractions.h:58:1: warning: useless type name in empty declaration [enabled by default]
   typedef unsigned char _Bool;
   
  ../../inc/azure_c_shared_utility/crt_abstractions.h:125:2: error: #error unknown (or C89) compiler, provide ISNAN with the same meaning as isnan in C99 standard
   #error unknown (or C89) compiler, provide ISNAN with the same meaning as isnan in C99 standard
  </code></pre>