build: declare some CMake variables as advanced

[vpp.git] / src / plugins / rdma / CMakeLists.txt

diff --git a/src/plugins/rdma/CMakeLists.txt b/src/plugins/rdma/CMakeLists.txt
index 86fc68f..f598ff8 100644 (file)
--- a/src/plugins/rdma/CMakeLists.txt
+++ b/src/plugins/rdma/CMakeLists.txt
@@ -11,7 +11,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-find_path(IBVERBS_INCLUDE_DIR NAMES infiniband/verbs.h)
+vpp_find_path(IBVERBS_INCLUDE_DIR NAMES infiniband/verbs.h)
 
 if (NOT IBVERBS_INCLUDE_DIR)
   message(WARNING "-- rdma headers not found - rdma plugin disabled")
@@ -29,8 +29,15 @@ endif()
 
 string_append(RDMA_LINK_FLAGS "-Wl,--whole-archive,${MLX5_LIB},--no-whole-archive")
 
-set(CMAKE_REQUIRED_FLAGS "-fPIC -shared -pthread ${RDMA_LINK_FLAGS} ${IBVERBS_LIB} ${RDMA_UTIL_LIB}")
-CHECK_C_SOURCE_COMPILES("int main(void) { return 0; }" IBVERBS_COMPILES_CHECK)
+set(CMAKE_REQUIRED_FLAGS "-fPIC -shared -pthread -Wno-unused-command-line-argument ${RDMA_LINK_FLAGS} ${IBVERBS_LIB} ${RDMA_UTIL_LIB}")
+set(CMAKE_REQUIRED_INCLUDES "${IBVERBS_INCLUDE_DIR}")
+set(CMAKE_REQUIRED_LIBRARIES "c") # force linkage by including libc explicitely
+CHECK_C_SOURCE_COMPILES("
+#include <infiniband/verbs.h>
+int main(void)
+{
+    return 0 != ibv_get_device_list(0);
+}" IBVERBS_COMPILES_CHECK)
 
 if (NOT IBVERBS_COMPILES_CHECK)
   message(WARNING "rdma plugins - no working ibverbs found - rdma plugin disabled")