From: Bart Van Assche <bvanassche@acm.org>
Date: Mon, 6 Jan 2020 18:55:48 +0000 (-0800)
Subject: configure: Improve the ibverbs test
X-Git-Tag: fio-3.18~18^2~9
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=40dae137d10e4053993599b4d85f351468b1b5df;hp=97f3eddce4d181f3ca378621642be7455c2f1fa1;p=fio.git

configure: Improve the ibverbs test

This patch fixes the following configure test build error if configure is
invoked with --extra-cflags=-Werror:

/tmp/fio-conf-14710-130227-4466.c: In function 'main':
/tmp/fio-conf-14710-130227-4466.c:4:18: error: unused variable 'pd' [-Werror=unused-variable]
   struct ibv_pd *pd = ibv_alloc_pd(NULL);
                  ^~
cc1: all warnings being treated as errors

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---

diff --git a/configure b/configure
index fa6df532..65ce3662 100755
--- a/configure
+++ b/configure
@@ -841,7 +841,7 @@ cat > $TMPC << EOF
 int main(int argc, char **argv)
 {
   struct ibv_pd *pd = ibv_alloc_pd(NULL);
-  return 0;
+  return pd != NULL;
 }
 EOF
 if test "$disable_rdma" != "yes" && compile_prog "" "-libverbs" "libverbs" ; then