diff options
Diffstat (limited to 'm4/ax_c___atomic.m4')
| -rw-r--r-- | m4/ax_c___atomic.m4 | 36 |
1 files changed, 0 insertions, 36 deletions
diff --git a/m4/ax_c___atomic.m4 b/m4/ax_c___atomic.m4 deleted file mode 100644 index dd5ee3d1c..000000000 --- a/m4/ax_c___atomic.m4 +++ /dev/null @@ -1,36 +0,0 @@ -# AC_C___ATOMIC -# ------------- -# Define HAVE_C___ATOMIC if __atomic works. -AN_IDENTIFIER([__atomic], [AC_C___ATOMIC]) -AC_DEFUN([AC_C___ATOMIC], -[AC_CACHE_CHECK([for __atomic], ac_cv_c___atomic, -[AC_LINK_IFELSE( - [AC_LANG_SOURCE( - [[int - main (int argc, char **argv) - { - volatile unsigned long ul1 = 1, ul2 = 0, ul3 = 2; - __atomic_load_n(&ul1, __ATOMIC_SEQ_CST); - __atomic_compare_exchange(&ul1, &ul2, &ul3, 1, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST); - __atomic_fetch_add(&ul1, 1, __ATOMIC_SEQ_CST); - __atomic_fetch_sub(&ul3, 1, __ATOMIC_SEQ_CST); - __atomic_or_fetch(&ul1, ul2, __ATOMIC_SEQ_CST); - __atomic_and_fetch(&ul1, ul2, __ATOMIC_SEQ_CST); - volatile unsigned long long ull1 = 1, ull2 = 0, ull3 = 2; - __atomic_load_n(&ull1, __ATOMIC_SEQ_CST); - __atomic_compare_exchange(&ull1, &ull2, &ull3, 1, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST); - __atomic_fetch_add(&ull1, 1, __ATOMIC_SEQ_CST); - __atomic_fetch_sub(&ull3, 1, __ATOMIC_SEQ_CST); - __atomic_or_fetch(&ull1, ull2, __ATOMIC_SEQ_CST); - __atomic_and_fetch(&ull1, ull2, __ATOMIC_SEQ_CST); - return 0; - } - ]])], - [ac_cv_c___atomic=yes], - [ac_cv_c___atomic=no])]) -if test $ac_cv_c___atomic = yes; then - AC_DEFINE([HAVE_C___ATOMIC], 1, - [Define to 1 if __atomic operations work.]) -fi -])# AC_C___ATOMIC - |