From: Eric Long <i@hack3r.moe>
Date: Fri, 27 Jan 2023 15:46:08 +0000 (+0000)
Subject: Fix CheckCxxAtomic to detect more accurately
X-Git-Tag: archive/raspbian/16.2.11+ds-1+rpi1^2~4
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=381f446834738067031b88929d6d0ad333dc8d79;p=ceph.git

Fix CheckCxxAtomic to detect more accurately

Last-Update: 2022-08-30

Some platforms like riscv64 does not have full support for atomic primitives,
yet passes the test. Adding operator++ fixes this issue.

Gbp-Pq: Name fix-CheckCxxAtomic-riscv64.patch
---

diff --git a/cmake/modules/CheckCxxAtomic.cmake b/cmake/modules/CheckCxxAtomic.cmake
index 833977b75..5510193a6 100644
--- a/cmake/modules/CheckCxxAtomic.cmake
+++ b/cmake/modules/CheckCxxAtomic.cmake
@@ -32,7 +32,7 @@ int main() {
   std::atomic<uint16_t> w2;
   std::atomic<uint32_t> w4;
   std::atomic<uint64_t> w8;
-  return w1 + w2 + w4 + w8;
+  return ++w1 + ++w2 + ++w4 + ++w8;
 }
 " ${var})
 endfunction(check_cxx_atomics)