[PATCH] ARM: Introduce ARM_DEFAULT_SHORT_ENUMS

[Sebastian Huber]

Allow targets to define the default for the short enums option.

gcc/

	* config/arm/arm.c: (ARM_DEFAULT_SHORT_ENUMS): Provide default
	definition.
	* config/arm/rtems.h (ARM_DEFAULT_SHORT_ENUMS) Define.
---
 gcc/config/arm/arm.c   | 6 +++++-
 gcc/config/arm/rtems.h | 2 ++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c
index b24143e..33d3834 100644
--- a/gcc/config/arm/arm.c
+++ b/gcc/config/arm/arm.c
@@ -26547,11 +26547,15 @@ arm_promote_function_mode (const_tree type ATTRIBUTE_UNUSED,
 }
 
 /* AAPCS based ABIs use short enums by default.  */
+#ifndef ARM_DEFAULT_SHORT_ENUMS
+#define ARM_DEFAULT_SHORT_ENUMS \
+  (TARGET_AAPCS_BASED && arm_abi != ARM_ABI_AAPCS_LINUX)
+#endif
 
 static bool
 arm_default_short_enums (void)
 {
-  return TARGET_AAPCS_BASED && arm_abi != ARM_ABI_AAPCS_LINUX;
+  return ARM_DEFAULT_SHORT_ENUMS;
 }
 
 
diff --git a/gcc/config/arm/rtems.h b/gcc/config/arm/rtems.h
index 53cd987..b34bbe8 100644
--- a/gcc/config/arm/rtems.h
+++ b/gcc/config/arm/rtems.h
@@ -27,3 +27,5 @@
 	builtin_assert ("system=rtems");	\
 	TARGET_BPABI_CPP_BUILTINS();    	\
     } while (0)
+
+#define ARM_DEFAULT_SHORT_ENUMS false
-- 
1.8.4.5