build: added CHECK_DECLS()

diff --git a/buildtools/wafsamba/samba_autoconf.py b/buildtools/wafsamba/samba_autoconf.py
index c5e43e5e9316652eb24169935c0ce94f85bf40e6..73ea4360a666db764afbe700e0dde99cc518250d 100644 (file)
--- a/buildtools/wafsamba/samba_autoconf.py
+++ b/buildtools/wafsamba/samba_autoconf.py
@@ -71,6 +71,17 @@ def CHECK_VARIABLE(conf, v, define=None, always=False):
         conf.DEFINE(define, 0)
         return False
 
+@conf
+def CHECK_DECLS(conf, vars):
+    '''check a list of variable declarations, using the HAVE_DECL_xxx form
+       of define'''
+    ret = True
+    for v in vars.split():
+        if not CHECK_VARIABLE(conf, v, define='HAVE_DECL_%s' % v.upper()):
+            ret = False
+    return ret
+
+
 @runonce
 def CHECK_FUNC(conf, f):
     return conf.check(function_name=f, header_name=conf.env.hlist)

diff --git a/lib/replace/wscript b/lib/replace/wscript
index c0bbadf695b9ce77f7cad6e7c045153359ca4171..4ca33fa93ab0361ef7a0762ecd84e8d06aed88f1 100644 (file)
--- a/lib/replace/wscript
+++ b/lib/replace/wscript
@@ -129,6 +129,8 @@ def configure(conf):
 
     conf.CHECK_VARIABLE('rl_event_hook', define='HAVE_DECL_RL_EVENT_HOOK', always=True)
 
+    conf.CHECK_DECLS('snprintf vsnprintf asprintf vasprintf')
+
     conf.check_cc(fragment='''
     #include <stdarg.h>
     va_list ap1,ap2;