diffutils: Fix build with eglibc 2.16

eglibc 2.16 has removed gets so we account for that

(From OE-Core rev: b6bcd4e26e94364939c8874db90e64fbb242e841)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-extended/diffutils/diffutils-3.2/remove-gets.patch

@@ -0,0 +1,22 @@
+check for gets before using it
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+Upstream-Status: Pending
+Index: diffutils-3.2/lib/stdio.in.h
+===================================================================
+--- diffutils-3.2.orig/lib/stdio.in.h	2011-08-28 04:57:28.000000000 -0700
++++ diffutils-3.2/lib/stdio.in.h	2012-07-03 10:45:07.518322117 -0700
+@@ -693,11 +693,13 @@
+ _GL_CXXALIAS_SYS (gets, char *, (char *s));
+ #  undef gets
+ # endif
++# if defined gets
+ _GL_CXXALIASWARN (gets);
+ /* It is very rare that the developer ever has full control of stdin,
+    so any use of gets warrants an unconditional warning.  Assume it is
+    always declared, since it is required by C89.  */
+ _GL_WARN_ON_USE (gets, "gets is a security hole - use fgets instead");
++# endif
+ #endif
+ 
+ 

meta/recipes-extended/diffutils/diffutils_3.2.bb

@@ -5,9 +5,11 @@ SECTION = "base"
 LICENSE = "GPLv3+"
 LIC_FILES_CHKSUM = "file://COPYING;md5=d32239bcb673463ab874e80d47fae504"
 
-PR = "r0"
+PR = "r1"
 
-SRC_URI = "${GNU_MIRROR}/diffutils/diffutils-${PV}.tar.gz"
+SRC_URI = "${GNU_MIRROR}/diffutils/diffutils-${PV}.tar.gz \
+           file://remove-gets.patch \
+          "
 
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