rdma: fix alignment issue

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

diff --git a/src/plugins/rdma/CMakeLists.txt b/src/plugins/rdma/CMakeLists.txt
index eaf747d..cc104f8 100644 (file)
--- a/src/plugins/rdma/CMakeLists.txt
+++ b/src/plugins/rdma/CMakeLists.txt
@@ -27,12 +27,17 @@ if (NOT IBVERBS_LIB OR NOT RDMA_UTIL_LIB OR NOT MLX5_LIB)
   return()
 endif()
 
-if (MLX5_LIB)
-  string_append(RDMA_LINK_FLAGS "-Wl,--whole-archive,${MLX5_LIB},--no-whole-archive")
-endif()
+string_append(RDMA_LINK_FLAGS "-Wl,--whole-archive,${MLX5_LIB},--no-whole-archive")
 
-set(CMAKE_REQUIRED_FLAGS "-fPIC -shared ${IBVERBS_LIB} ${RDMA_UTIL_LIB} ${RDMA_LINK_FLAGS}")
-CHECK_C_SOURCE_COMPILES("" 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")