[PATCH] configure: Fix libnfs cflags and libs

libnfs version 16 requires the gnutls library. Without specifying at
least -lgnutls, builds fail:

  LINK fio
/usr/bin/ld: /usr/lib/gcc/x86_64-redhat-linux/15/../../../../lib64/libnfs.so: undefined reference to `gnutls_certificate_set_x509_trust_dir'
/usr/bin/ld: /usr/lib/gcc/x86_64-redhat-linux/15/../../../../lib64/libnfs.so: undefined reference to `gnutls_transport_set_int2'
...

Modify the configure script to add cflags and library options for gnutls
to correctly build libnfs engine.

Signed-off-by: Damien Le Moal <[email protected]>
---
 configure | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 715f0602..986eb0a6 100755
--- a/configure
+++ b/configure
@@ -2361,8 +2361,8 @@ print_config "DAOS File System (dfs) Engine" "$dfs"
 if test "$libnfs" != "no" ; then
   if $(pkg-config libnfs > /dev/null 2>&1); then
     libnfs="yes"
-    libnfs_cflags=$(pkg-config --cflags libnfs)
-    libnfs_libs=$(pkg-config --libs libnfs)
+    libnfs_cflags=$(pkg-config --cflags libnfs gnutls)
+    libnfs_libs=$(pkg-config --libs libnfs gnutls)
   else
     if test "$libnfs" = "yes" ; then
       feature_not_found "libnfs" "libnfs"
-- 
2.49.0