diff --git a/configure.ac b/configure.ac
index 020d78442c..439a06a3a5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -203,8 +203,6 @@ LIBVIRT_CHECK_WIRESHARK
 LIBVIRT_CHECK_XDR
 LIBVIRT_CHECK_YAJL
 
-AC_CHECK_SIZEOF([long])
-
 
 AC_CHECK_LIB([intl],[gettext],[])
 AC_CHECK_LIB([util],[openpty],[])
diff --git a/meson.build b/meson.build
index 990faa5d46..65f1581515 100644
--- a/meson.build
+++ b/meson.build
@@ -867,6 +867,11 @@ foreach member : members
 endforeach
 
 
+# check various types sizeof
+
+conf.set('SIZEOF_LONG', cc.sizeof('long'))
+
+
 # define top include directory
 
 top_inc_dir = include_directories('.')