From a5380c752bc94d5054c79eadb9612028c36fd426 Mon Sep 17 00:00:00 2001
From: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Date: Tue, 4 Dec 2018 13:06:31 +0100
Subject: [PATCH] configure: detect libibverbs using ldcofnig

This should be most robust way of detecting it.

Fixes #524

Change-Id: Ic1e50500ca5eb51177ac5197c59005b133cd8367
Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Reviewed-on: https://review.gerrithub.io/435996
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Andrey Kuzmin <akuzmin@jetstreamsoft.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
---
 configure | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 8298fc818..cba938dde 100755
--- a/configure
+++ b/configure
@@ -332,14 +332,20 @@ fi
 
 if [ "${CONFIG[RDMA]}" = "y" ]; then
 	if [ "$OSTYPE" != "FreeBSD"* ]; then
-		ibv_lib_file="$(readlink -f /usr/lib64/libibverbs.so)" || true
+		ibv_lib_file="$(ldconfig -p | grep 'libibverbs.so ' || true)"
+		if [ ! -z "$ibv_lib_file" ]; then
+			ibv_lib_file="${ibv_lib_file##*=> }"
+			ibv_lib_file="$(readlink -f $ibv_lib_file)" || true
+		fi
+
 		if [ -z $ibv_lib_file ]; then
 			ibv_lib_file="libibverbs.so.0.0.0"
 		fi
+
 		ibv_ver_str="$(basename $ibv_lib_file)"
 		ibv_maj_ver=`echo $ibv_ver_str | cut -d. -f3`
 		ibv_min_ver=`echo $ibv_ver_str | cut -d. -f4`
-		if [[ "$ibv_maj_var" > 1 || ("$ibv_maj_ver" -eq 1 && "$ibv_min_ver" -ge 1) ]]; then
+		if [[ "$ibv_maj_var" -gt 1 || ("$ibv_maj_ver" -eq 1 && "$ibv_min_ver" -ge 1) ]]; then
 			CONFIG[RDMA_SEND_WITH_INVAL]="y"
 		else
 			CONFIG[RDMA_SEND_WITH_INVAL]="n"