diff --git a/configure/os/CONFIG.Common.RTEMS b/configure/os/CONFIG.Common.RTEMS
index 2f63b1508..bcab2ac49 100644
--- a/configure/os/CONFIG.Common.RTEMS
+++ b/configure/os/CONFIG.Common.RTEMS
@@ -28,8 +28,9 @@ ifneq ($(CONFIG),$(TOP)/configure)
 endif
 
 #--------------------------------------------------
-# Set RTEMS_BSP from T_A if not already done
+# Set RTEMS_BSP and GNU_TARGET if not already done
 RTEMS_BSP ?= $(subst RTEMS-,,$(T_A))
+GNU_TARGET ?= $(RTEMS_TARGET_CPU)-rtems
 
 #-------------------------------------------------------
 # Pick up the RTEMS tool/path definitions from the RTEMS BSP directory.