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Diffstat (limited to 'cpukit/aclocal/check-atomic.m4')
| -rw-r--r-- | cpukit/aclocal/check-atomic.m4 | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/cpukit/aclocal/check-atomic.m4 b/cpukit/aclocal/check-atomic.m4 new file mode 100644 index 0000000000..97943eb768 --- /dev/null +++ b/cpukit/aclocal/check-atomic.m4 @@ -0,0 +1,13 @@ +dnl +AC_DEFUN([RTEMS_CHECK_ATOMIC], +[dnl +AC_REQUIRE([RTEMS_CANONICAL_TARGET_CPU])dnl + +AC_CACHE_CHECK([whether CPU supports atomic operations], + [rtems_cv_ATOMIC],[ + AS_IF( + [test -f "${srcdir}/score/cpu/$RTEMS_CPU/rtems/score/cpuatomic.h"], + [rtems_cv_ATOMIC="yes"], + [rtems_cv_ATOMIC="no"]) + ]) +]) |