Updates to m4

[awesomized/libmemcached] / m4 / bottom.m4

diff --git a/m4/bottom.m4 b/m4/bottom.m4
index 55591be4fe117b8267897223af5ad1c9b1662d06..a02e312f66d8dee5ca3617743247cebabe34cdda 100644 (file)
--- a/m4/bottom.m4
+++ b/m4/bottom.m4
@@ -1,5 +1,15 @@
 AC_DEFUN([CONFIG_EXTRA], [
 
+AH_TOP([
+#pragma once
+
+/* _SYS_FEATURE_TESTS_H is Solaris, _FEATURES_H is GCC */
+#if defined( _SYS_FEATURE_TESTS_H) || defined(_FEATURES_H)
+#error "You should include config.h as your first include file"
+#endif
+
+])
+
 AH_BOTTOM([
 
 #if defined(__cplusplus)