diff options
Diffstat (limited to 'build-aux/m4')
| -rw-r--r-- | build-aux/m4/l_atomic.m4 | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/build-aux/m4/l_atomic.m4 b/build-aux/m4/l_atomic.m4 index 40639dfe61..602b57fe43 100644 --- a/build-aux/m4/l_atomic.m4 +++ b/build-aux/m4/l_atomic.m4 @@ -18,7 +18,7 @@ m4_define([_CHECK_ATOMIC_testbody], [[ int main() { std::atomic<bool> lock{true}; - std::atomic_exchange(&lock, false); + lock.exchange(false); std::atomic<std::chrono::seconds> t{0s}; t.store(2s); @@ -34,6 +34,8 @@ m4_define([_CHECK_ATOMIC_testbody], [[ AC_DEFUN([CHECK_ATOMIC], [ AC_LANG_PUSH(C++) + TEMP_CXXFLAGS="$CXXFLAGS" + CXXFLAGS="$CXXFLAGS $PTHREAD_CFLAGS" AC_MSG_CHECKING([whether std::atomic can be used without link library]) @@ -51,5 +53,6 @@ AC_DEFUN([CHECK_ATOMIC], [ ]) ]) + CXXFLAGS="$TEMP_CXXFLAGS" AC_LANG_POP ]) |