casa-mp-base

--- configure.orig  2019-03-20 16:57:56.000000000 +1100

+++ configure   2019-04-02 02:36:21.000000000 +1100

@@ -18020,10 +18020,27 @@

    cat confdefs.h - <<_ACEOF >conftest.$ac_ext

 /* end confdefs.h.  */

 #include <inttypes.h>

+

+#if !defined(__has_feature)

+#define __has_feature(x) 0

+#endif

+

+#if !defined(__has_extension)

+#define __has_extension(x) __has_feature(x)

+#endif

+

+#if __has_extension(c_atomic) || __has_extension(cxx_atomic)

+#define __CLANG_ATOMICS

+#endif

+

 int

 main ()

 {

+#ifdef __CLANG_ATOMICS

+int32_t val = 0; __c11_atomic_fetch_add(&val, 1, __ATOMIC_RELAXED);

+#else

 int32_t val = 0; __atomic_fetch_add(&val, 1, __ATOMIC_RELAXED);

+#endif

   ;

   return 0;

--- lib/isc/unix/include/isc/stdatomic.h.orig   2019-03-20 16:57:56.000000000 +1100

+++ lib/isc/unix/include/isc/stdatomic.h    2019-04-02 03:33:45.000000000 +1100

@@ -32,7 +32,7 @@

 #endif

 #if !defined(__CLANG_ATOMICS) && !defined(__GNUC_ATOMICS)

-#if __has_extension(c_atomic) || __has_extension(cxx_atomic)

+#if defined(HAVE___ATOMIC) && (__has_extension(c_atomic) || __has_extension(cxx_atomic))

 #define __CLANG_ATOMICS

 #elif __GNUC_PREREQ__(4, 7)

 #define __GNUC_ATOMICS