From 06940d57967039792d945a4999ccd31dfe4b83c4 Mon Sep 17 00:00:00 2001
From: Andrew Tridgell <tridge@samba.org>
Date: Tue, 23 Feb 2010 16:48:38 +1100
Subject: build: auto-strip empty dependencies

---
 lib/replace/wafsamba.py | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'lib/replace')

diff --git a/lib/replace/wafsamba.py b/lib/replace/wafsamba.py
index 58b8e79e35..4cf8902de6 100644
--- a/lib/replace/wafsamba.py
+++ b/lib/replace/wafsamba.py
@@ -220,7 +220,11 @@ def ADD_DEPENDENCIES(bld, name, deps):
     # extract out the system dependencies
     sysdeps = []
     localdeps = []
+    cache = BUILD_CACHE(bld, 'EMPTY_LIBS')
     for d in list2:
+        # strip out any dependencies on empty libraries
+        if d in cache:
+            continue
         libname = 'LIB_%s' % d.upper()
         if libname in bld.env:
             sysdeps.append(d)
@@ -253,6 +257,12 @@ def SAMBA_LIBRARY(bld, libname, source_list,
     # print "Declaring SAMBA_LIBRARY %s" % libname
     #print "SAMBA_LIBRARY '%s' with deps '%s'" % (libname, deps)
 
+    # remember empty libraries, so we can strip the dependencies
+    if (source_list == '') or (source_list == []):
+        cache = BUILD_CACHE(bld, 'EMPTY_LIBS')
+        cache[libname] = True
+        return
+
     (sysdeps, deps) = ADD_DEPENDENCIES(bld, libname, deps)
 
     ilist = bld.SAMBA_LIBRARY_INCLUDE_LIST(deps) + bld.SUBDIR(bld.curdir, include_list)
-- 
cgit