From 38f8b86c7756893a32d24eee101d272b35209f78 Mon Sep 17 00:00:00 2001
From: Kai Blin <kai@samba.org>
Date: Mon, 22 Mar 2010 22:58:43 +0100
Subject: build: Check if the compiler will optimize out functions

---
 source3/wscript | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/source3/wscript b/source3/wscript
index e6f44f463d..ef682c5e11 100644
--- a/source3/wscript
+++ b/source3/wscript
@@ -152,6 +152,15 @@ main() {
                         headers='sys/types.h rpc/rpc.h',
                         msg="Checking for uint32 typedef included by rpc/rpc.h")
 
+    # Check if the compiler will optimize out functions
+    conf.CHECK_CODE('''
+if (0) {
+    this_function_does_not_exist();
+} else {
+    return 1;
+}''', 'HAVE_COMPILER_WILL_OPTIMIZE_OUT_FNS',
+        msg="Checking if the compiler will optimize out functions")
+
     # Look for CUPS
     conf.find_program('cups-config', var='CUPS_CONFIG')
     if conf.env.CUPS_CONFIG:
-- 
cgit