m4: sasl: Use pkg-config

Since commit 4e75b0a00fb4 we support SASL 2.1.26 and newer
releases only, all of which ship a .pc file. Using pkg-config
allows FreeBSD builds to pick up the dependency automatically.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>

diff --git a/m4/virt-sasl.m4 b/m4/virt-sasl.m4
index 7ab9b2c3689e7e0d44a6aad2a57ef34634141742..674e169350284400313e05ff169547a6ff02eae3 100644 (file)
--- a/m4/virt-sasl.m4
+++ b/m4/virt-sasl.m4
@@ -22,7 +22,7 @@ AC_DEFUN([LIBVIRT_ARG_SASL],[
 ])
 
 AC_DEFUN([LIBVIRT_CHECK_SASL],[
-  LIBVIRT_CHECK_LIB([SASL], [sasl2], [sasl_client_init], [sasl/sasl.h])
+  LIBVIRT_CHECK_PKG([SASL], [libsasl2], [2.1.26])
 ])
 
 AC_DEFUN([LIBVIRT_RESULT_SASL],[