diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/configure.ac b/configure.ac index f1fbdcc6c7c..c0fbfe94135 100644 --- a/configure.ac +++ b/configure.ac @@ -445,9 +445,11 @@ if test "x$GCC_ATOMIC_BUILTINS_SUPPORTED" = x1; then AC_MSG_CHECKING(whether -latomic is needed) AC_LINK_IFELSE([AC_LANG_SOURCE([[ #include <stdint.h> - uint64_t v; + struct { + uint64_t *v; + } x; int main() { - return (int)__atomic_load_n(&v, __ATOMIC_ACQUIRE); + return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE); }]])], GCC_ATOMIC_BUILTINS_NEED_LIBATOMIC=no, GCC_ATOMIC_BUILTINS_NEED_LIBATOMIC=yes) AC_MSG_RESULT($GCC_ATOMIC_BUILTINS_NEED_LIBATOMIC) if test "x$GCC_ATOMIC_BUILTINS_NEED_LIBATOMIC" = xyes; then |