Ensure config.h is included.

src/xt_request_internal.h

@@ -47,6 +47,10 @@
 #ifndef XT_REQUEST_INTERNAL_H
 #define XT_REQUEST_INTERNAL_H
 
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
 #include "xt/xt_request.h"
 
 struct Xt_request_vtable {

src/xt_sort_internal.h

@@ -46,6 +46,10 @@
 #ifndef XT_SORT_INTERNAL_H
 #define XT_SORT_INTERNAL_H
 
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
 #include "core/ppm_visibility.h"
 
 PPM_DSO_INTERNAL void xt_sort_init(void);

tests/ftest_common.h

@@ -45,6 +45,10 @@
 #ifndef FTEST_COMMON_H
 #define FTEST_COMMON_H
 
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
 #include <assert.h>
 #include <stdbool.h>
 #include <inttypes.h>

tests/test_redist_single_array_base_common.c

@@ -44,6 +44,10 @@
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
 #include "yaxt.h"
 #include "tests.h"
 #include "test_redist_common.h"