From 1a9d4f3b922089be5e79c40aad31f6d4edc736f2 Mon Sep 17 00:00:00 2001
From: "mergify[bot]" <37929162+mergify[bot]@users.noreply.github.com>
Date: Mon, 30 Aug 2021 13:58:51 -0300
Subject: [PATCH] rmw_cyclonedds_cpp/CMakeLists.txt: add -latomic for RISC-V
 (#332) (#333)

(cherry picked from commit 91646cedfc368e29ab7e8f70cbf77aa1e354b5c4)

Co-authored-by: guillaume-pais-siemens <79512275+guillaume-pais-siemens@users.noreply.github.com>
---
 rmw_cyclonedds_cpp/CMakeLists.txt | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/rmw_cyclonedds_cpp/CMakeLists.txt b/rmw_cyclonedds_cpp/CMakeLists.txt
index 480f1ac..4111a73 100644
--- a/rmw_cyclonedds_cpp/CMakeLists.txt
+++ b/rmw_cyclonedds_cpp/CMakeLists.txt
@@ -71,6 +71,17 @@ target_include_directories(rmw_cyclonedds_cpp PUBLIC
 target_link_libraries(rmw_cyclonedds_cpp
   CycloneDDS::ddsc
 )
+if(CMAKE_GENERATOR_PLATFORM)
+  set(TARGET_ARCH "${CMAKE_GENERATOR_PLATFORM}")
+else()
+  set(TARGET_ARCH "${CMAKE_SYSTEM_PROCESSOR}")
+endif()
+
+if(CMAKE_COMPILER_IS_GNUCXX AND TARGET_ARCH MATCHES "^(riscv|RISCV)64$")
+  # using GCC, libatomic is not automatically linked for RISC-V
+  target_link_libraries(rmw_cyclonedds_cpp -latomic)
+endif()
+
 
 ament_target_dependencies(rmw_cyclonedds_cpp
   "rcutils"