[vala] posix: Add ffs binding

[JÃrg Billeter <juergbi src gnome org>]

commit e7c530d8e00d637fa53b1e9b87be92c6e19c81a7
Author: JÃrg Billeter <j bitron ch>
Date:   Sat Apr 7 22:51:45 2012 +0300

    posix: Add ffs binding

 vapi/posix.vapi |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/vapi/posix.vapi b/vapi/posix.vapi
index 3603a0c..9e5d39c 100644
--- a/vapi/posix.vapi
+++ b/vapi/posix.vapi
@@ -1232,6 +1232,9 @@ namespace Posix {
 	[CCode (cheader_filename = "string.h")]
 	public size_t strxfrm (string s1, string s2, size_t n);
 
+	[CCode (cheader_filename = "strings.h")]
+	public int ffs (int i);
+
 	[CCode (cheader_filename = "stropts.h")]
 	public const int I_PUSH;
 	[CCode (cheader_filename = "stropts.h")]