Unity fixes (#47)

* truncate linux version to pass GA validation

* correct check for clang

* discard incompatible sdk state

* update version num

Author: dorin-ga

sample_shared/CMakeLists.txt

@@ -9,7 +9,7 @@ set(CMAKE_CXX_STANDARD 17)
 if(LINUX)
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17")
 
-    if(CLANG)
+    if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
         set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++")
     endif()
 endif()

source/gameanalytics/GACommon.h

@@ -85,7 +85,7 @@ namespace gameanalytics
         class GAState;
     }
 
-    constexpr const char* GA_VERSION_STR = "cpp 5.2.0";
+    constexpr const char* GA_VERSION_STR = "cpp 5.3.1";
 
     constexpr int MAX_CUSTOM_FIELDS_COUNT				 = 50;
     constexpr int MAX_CUSTOM_FIELDS_KEY_LENGTH			 = 64;

source/gameanalytics/GAState.cpp

@@ -638,6 +638,7 @@ namespace gameanalytics
                     catch (json::exception& e)
                     {
                         logging::GALogger::e(e.what());
+                        store::GAStore::setState("sdk_config_cached", "");
                     }
                 }
 

source/gameanalytics/Platform/GALinux.cpp

@@ -81,9 +81,19 @@ std::string gameanalytics::GAPlatformLinux::getOSVersion()
     std::string version;
     int const strSize = strlen(info.release);
 
+    int dotCount = 0;
     for (size_t i = 0; i < strSize; ++i)
-    {
-        if (!isdigit(info.release[i]) && info.release[i] != '.')
+    {    
+        if (info.release[i] == '.')
+        {
+            ++dotCount;
+            if (dotCount == 3)
+            {
+                version = std::string(info.release, info.release + i);
+                break;
+            }
+        }
+        else if (!isdigit(info.release[i]))
         {
             version = std::string(info.release, info.release + i);
             break;