Fix 'Cannot implement CAS_full on this architecture' build error (cris)

* src/atomic_ops.h [__cris__ || CRIS] (AO_CAN_EMUL_CAS): Define.
* src/atomic_ops/sysdeps/gcc/cris.h: Add TODO to implement CAS.

diff --git a/src/atomic_ops.h b/src/atomic_ops.h
index c3dde0a..496bfc3 100644 (file)
--- a/src/atomic_ops.h
+++ b/src/atomic_ops.h
@@ -257,6 +257,7 @@
 # endif /* __arm__ */
 # if defined(__cris__) || defined(CRIS)
 #   include "atomic_ops/sysdeps/gcc/cris.h"
+#   define AO_CAN_EMUL_CAS
 #   define AO_GENERALIZE_TWICE
 # endif
 # if defined(__mips__)

diff --git a/src/atomic_ops/sysdeps/gcc/cris.h b/src/atomic_ops/sysdeps/gcc/cris.h
index cbca1e7..89eec87 100644 (file)
--- a/src/atomic_ops/sysdeps/gcc/cris.h
+++ b/src/atomic_ops/sysdeps/gcc/cris.h
@@ -42,7 +42,7 @@
  * http://developer.axis.com/doc/hardware/etrax100lx/prog_man/
  *      1_architectural_description.pdf
  *
- * Presumably many other primitives (notably CAS, including the double-
+ * TODO: Presumably many other primitives (notably CAS, including the double-
  * width versions) could be implemented in this manner, if someone got
  * around to it.
  */