try to offload android to sgcore/sgconnect third-party libraries and drop linux third-party libraries for earlier versions of the engine prior to 4.27

Source/SenseGloveConnectImpl/Private/SGConnectImpl/SGExportedFunctions.cpp

@@ -34,9 +34,31 @@
 
 
 #include "SGConnectImpl/SGExportedFunctions.h"
+
 #include "Templates/UnrealTemplate.h"
+
+#if PLATFORM_ANDROID
+#include "SGBuildHacks/SGInclude_Connect_Android.h"
+#endif  /* PLATFORM_ANDROID */
+
 #include "SGConnectImpl/SGConnectImpl.h"
 #include "SGInterop/SGIC_FString.h"
+#include "SGInterop/SGIC_JNIEnv_Ptr.h"
+
+/*******************************************************************************
+ * Exceptional function calls
+ ******************************************************************************/
+
+#if PLATFORM_ANDROID
+int32 SGConnectImpl_Android_Initialize(void* Env)
+{
+    return SGConnect::Android::Initialize(StaticCast<FSGIC_JNIEnv_Ptr*>(Env)->Ptr);
+}
+#endif  /* PLATFORM_ANDROID */
+
+/*******************************************************************************
+ * SGConnectImpl.h
+ ******************************************************************************/
 
 int32 SGConnect_Init()
 {

Source/SenseGloveConnectImpl/Public/SGConnectImpl/SGExportedFunctions.h

@@ -46,7 +46,7 @@
    check whether boolean type is supported by the compiler or not. */
 #include <stdbool.h>
 
-#include <CoreTypes.h>
+#include "CoreTypes.h"
 
 /* Check at compile time whether the C compiler has support for bool, true,
    and false macros. */
@@ -64,11 +64,25 @@ static_assert(__bool_true_false_are_defined, "Error: bool, true, and false are n
 extern "C" {
 #endif  /* __cplusplus */
 
-/* SGConnect.h */
+/*******************************************************************************
+ * Exceptional function calls
+ ******************************************************************************/
+
+#if PLATFORM_ANDROID
+SENSEGLOVECONNECTIMPL_PUBLIC_API int32 SGConnectImpl_Android_Initialize(void* Env);
+#endif  /* PLATFORM_ANDROID */
+
+/*******************************************************************************
+ * SGConnectImpl.h
+ ******************************************************************************/
+
 SENSEGLOVECONNECTIMPL_PUBLIC_API int32 SGConnect_Init();
 SENSEGLOVECONNECTIMPL_PUBLIC_API int32 SGConnect_Dispose();
 SENSEGLOVECONNECTIMPL_PUBLIC_API void SGConnect_GetLibraryVersion(void* OutVersion);
 
+/*******************************************************************************
+ ******************************************************************************/
+
 #if __cplusplus
 }
 #endif  /* __cplusplus */