1 files changed, 45 insertions, 0 deletions
diff --git a/include/arch/unix/apr_arch_atomic.h b/include/arch/unix/apr_arch_atomic.h
new file mode 100644
index 0000000..f801906
--- /dev/null
+++ b/include/arch/unix/apr_arch_atomic.h
@@ -0,0 +1,45 @@
+/* Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ATOMIC_H
+#define ATOMIC_H
+
+#include "apr.h"
+#include "apr_private.h"
+#include "apr_atomic.h"
+#include "apr_thread_mutex.h"
+
+#if defined(USE_ATOMICS_GENERIC)
+/* noop */
+#elif defined(__GNUC__) && defined(__STRICT_ANSI__)
+/* force use of generic atomics if building e.g. with -std=c89, which
+ * doesn't allow inline asm */
+#   define USE_ATOMICS_GENERIC
+#elif HAVE_ATOMIC_BUILTINS
+#   define USE_ATOMICS_BUILTINS
+#elif defined(SOLARIS2) && SOLARIS2 >= 10
+#   define USE_ATOMICS_SOLARIS
+#elif defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
+#   define USE_ATOMICS_IA32
+#elif defined(__GNUC__) && (defined(__PPC__) || defined(__ppc__))
+#   define USE_ATOMICS_PPC
+#elif defined(__GNUC__) && (defined(__s390__) || defined(__s390x__))
+#   define USE_ATOMICS_S390
+#else
+#   define USE_ATOMICS_GENERIC
+#endif
+
+#endif /* ATOMIC_H */