fix: duplicate backend library files

Author: giladgd

llama/CMakeLists.txt

@@ -40,6 +40,7 @@ endif()
 
 add_definitions(-DNAPI_VERSION=7)
 set(CMAKE_POSITION_INDEPENDENT_CODE ON)
+set(CMAKE_PLATFORM_NO_VERSIONED_SONAME ON)
 
 set(LLAMA_BUILD_COMMON ON)
 

llama/cmake/addVariantSuffix.cmake

@@ -1,5 +1,5 @@
 function(addVariantSuffix originalTarget variantSuffix)
-    if (NOT TARGET ${originalTarget} OR variantSuffix STREQUAL "")
+    if (NOT TARGET ${originalTarget} OR ${variantSuffix} STREQUAL "")
         return()
     endif()