--- ./configure.ac.ORIG	2023-02-11 20:12:38.532565000 +0100
+++ ./configure.ac	2023-02-11 20:14:27.194137000 +0100
@@ -170,7 +170,8 @@
 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
 #include <infiniband/verbs.h>
 #include <rdma/rdma_cma.h>
-#include <rdma/rdma_verbs.h>]],
+#include <rdma/rdma_verbs.h>
+#error not on FreeBSD]],
 [[int ibv = IBV_WC_SEND;]])],
 [libiscsi_cv_HAVE_LINUX_ISER=yes],[libiscsi_cv_HAVE_LINUX_ISER=no])])
 if test x"$libiscsi_cv_HAVE_LINUX_ISER" = x"yes"; then