IGA: refine CMake file

Refine CMake file for internal purpose

Author: DianaChen

visa/iga/IGALibrary/CMakeLists.txt

@@ -304,7 +304,9 @@ target_compile_definitions(IGA_ENC_LIB PUBLIC IGA_DISABLE_ENCODER_EXCEPTIONS)
 # iga##.dll
 ##############################################################################
 
-    add_library(IGA_DLL SHARED $<TARGET_OBJECTS:GEDLibrary> $<TARGET_OBJECTS:IGA_OLIB> ${IGA_API})
+set (IGA_RES "")
+
+    add_library(IGA_DLL SHARED $<TARGET_OBJECTS:GEDLibrary> $<TARGET_OBJECTS:IGA_OLIB> ${IGA_API} ${IGA_RES})
 
 set(IGA_DLL_DEFINITIONS ${IGA_DEFINITIONS} IGA_BUILDING_DLL)
 if (WIN32)