Specified Linker Language for Tosa Reference Backend

 * Required for building within the IDE.

Signed-off-by: Mike Kelly <mike.kelly@arm.com>
Change-Id: Icbf1b7e24cc20f579bcb6f8d82666ed480378dd4
diff --git a/src/backends/tosaReference/CMakeLists.txt b/src/backends/tosaReference/CMakeLists.txt
index c7de117..c053def 100644
--- a/src/backends/tosaReference/CMakeLists.txt
+++ b/src/backends/tosaReference/CMakeLists.txt
@@ -39,6 +39,7 @@
 endif()
 
 add_library(armnnTosaRefBackend OBJECT ${armnnTosaRefBackend_sources})
+set_target_properties(armnnTosaRefBackend PROPERTIES LINKER_LANGUAGE CXX)
 target_include_directories(armnnTosaRefBackend PRIVATE ${PROJECT_SOURCE_DIR}/src/armnn)
 target_include_directories(armnnTosaRefBackend PRIVATE ${PROJECT_SOURCE_DIR}/src/armnnUtils)
 target_include_directories(armnnTosaRefBackend PRIVATE ${PROJECT_SOURCE_DIR}/src/backends)