Fix TACOPIE_CMAKE_ARGS getting converted to a string instead of a list (#78)

Author: Konijnendijk

CMakeLists.txt

@@ -172,7 +172,7 @@ IF (NOT USE_CUSTOM_TCP_CLIENT)
   set(TACOPIE_CMAKE_ARGS "-DCMAKE_INSTALL_PREFIX=${PROJECT_SOURCE_DIR}/deps")
   # For windows, forward the runtime environment configuration
   IF (WIN32)
-    set(TACOPIE_CMAKE_ARGS "${TACOPIE_CMAKE_ARGS} -DMSVC_RUNTIME_LIBRARY_CONFIG=${MSVC_RUNTIME_LIBRARY_CONFIG}")
+    set(TACOPIE_CMAKE_ARGS ${TACOPIE_CMAKE_ARGS} "-DMSVC_RUNTIME_LIBRARY_CONFIG=${MSVC_RUNTIME_LIBRARY_CONFIG}")
   ENDIF (WIN32)
 
   # Add tacopie as dependency