From 0bad3dacb02411f46921af23faccd66f4196268f Mon Sep 17 00:00:00 2001
From: Andrew Tridgell <tridge@samba.org>
Date: Sat, 20 Mar 2010 17:10:51 +1100
Subject: [PATCH] build: cope with multiple checks for the same
 function/library

---
 buildtools/wafsamba/samba_autoconf.py | 3 ++-
 buildtools/wafsamba/samba_utils.py    | 9 +++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/buildtools/wafsamba/samba_autoconf.py b/buildtools/wafsamba/samba_autoconf.py
index 4d6ac26a6cc..028f5f269af 100644
--- a/buildtools/wafsamba/samba_autoconf.py
+++ b/buildtools/wafsamba/samba_autoconf.py
@@ -295,7 +295,8 @@ def CHECK_FUNCS_IN(conf, list, library, mandatory=False, checklibc=False):
         remaining = TO_LIST(list)
 
     if remaining == []:
-        SET_TARGET_TYPE(conf, library, 'EMPTY')
+        if GET_TARGET_TYPE(conf, library) != 'SYSLIB':
+            SET_TARGET_TYPE(conf, library, 'EMPTY')
         return True
 
     if not conf.check(lib=library, uselib_store=library):
diff --git a/buildtools/wafsamba/samba_utils.py b/buildtools/wafsamba/samba_utils.py
index 7c0f4644ab8..9893a86c300 100644
--- a/buildtools/wafsamba/samba_utils.py
+++ b/buildtools/wafsamba/samba_utils.py
@@ -34,6 +34,15 @@ def SET_TARGET_TYPE(ctx, target, value):
     debug("task_gen: Target '%s' created of type '%s' in %s" % (target, value, ctx.curdir))
     return True
 
+
+def GET_TARGET_TYPE(ctx, target):
+    '''get target type from cache'''
+    cache = LOCAL_CACHE(ctx, 'TARGET_TYPE')
+    if not target in cache:
+        return None
+    return cache[target]
+
+
 ######################################################
 # this is used as a decorator to make functions only
 # run once. Based on the idea from
-- 
2.34.1